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  • Articles  (72)
  • Open Access-Papers  (72)
  • Plant Science  (72)
  • 2020-2024  (72)
  • 1
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    A new subspecies of Spermacoce bequaertii (Rubiaceae: Spermacoceae) (2023)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 68 no. 1, pp. 63-65
    Details
    Publication Date: 2024-03-24
    Description: A new subspecies of the African species Spermacoce bequaertii is described and illustrated. This new subspecies (subsp. brevituba) is restricted to the Kasai district in the Democratic Republic of Congo, and differs from the typical subspecies in having smaller mature flowers with a glabrous corolla tube inside.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Africa ; Rubiaceae ; Spermacoce bequaertii ; Spermacoceae ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
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  • 2
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    Global consortium for the classification of fungi and fungus-like taxa (2023)
    Mushroom Research Foundation
    In:  Mycosphere vol. 14 no. 1, pp. 1960-2012
    Details
    Publication Date: 2024-04-22
    Description: The Global Consortium for the Classification of Fungi and fungus-like taxa is an international initiative of more than 550 mycologists to develop an electronic structure for the classification of these organisms. The members of the Consortium originate from 55 countries/regions worldwide, from a wide range of disciplines, and include senior, mid-career and early-career mycologists and plant pathologists. The Consortium will publish a biannual update of the Outline of Fungi and funguslike taxa, to act as an international scheme for other scientists. Notes on all newly published taxa at or above the level of species will be prepared and published online on the Outline of Fungi website (https://www.outlineoffungi.org/), and these will be finally published in the biannual edition of the Outline of Fungi and fungus-like taxa. Comments on recent important taxonomic opinions on controversial topics will be included in the biannual outline. For example, ‘to promote a more stable taxonomy in Fusarium given the divergences over its generic delimitation’, or ‘are there too many genera in the Boletales?’ and even more importantly, ‘what should be done with the tremendously diverse ‘dark fungal taxa?’ There are undeniable differences in mycologists’ perceptions and opinions regarding species classification as well as the establishment of new species. Given the pluralistic nature of fungal taxonomy and its implications for species concepts and the nature of species, this consortium aims to provide a platform to better refine and stabilise fungal classification, taking into consideration views from different parties. In the future, a confidential voting system will be set up to gauge the opinions of all mycologists in the Consortium on important topics. The results of such surveys will be presented to the International Commission on the Taxonomy of Fungi (ICTF) and the Nomenclature Committee for Fungi (NCF) with opinions and percentages of votes for and against. Criticisms based on scientific evidence with regards to nomenclature, classifications, and taxonomic concepts will be welcomed, and any recommendations on specific taxonomic issues will also be encouraged; however, we will encourage professionally and ethically responsible criticisms of others’ work. This biannual ongoing project will provide an outlet for advances in various topics of fungal classification, nomenclature, and taxonomic concepts and lead to a community-agreed classification scheme for the fungi and fungus-like taxa. Interested parties should contact the lead author if they would like to be involved in future outlines.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics
    Repository Name: National Museum of Natural History, Netherlands
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  • 3
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    A new species of Freycinetia Gaudich. (Pandanaceae; Freycinetoidea) with lateral infructescence and rostrate cephalia from the Arfak Mountains, Papua, Indonesia (2023)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 68 no. 1, pp. 70-72
    Details
    Publication Date: 2024-03-16
    Description: A new species of Freycinetia Gaudich. (Pandanaceae; Freycinetoidea) with a lateral infructescence and \nrostrate berries each with 4\xe2\x80\x938 stigmatic remains, rarely 4, fairly common 8, mostly 5\xe2\x80\x936. The possession of rostrate \nberries places this new species in the section Devrieseella. The existence of F. wiharjae extends the distribution of the \nsection further east to mainland New Guinea, while it was previously only known from Sulawesi and the Philippines.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Arfak ; Devrieseella ; Freycinetia ; New Guinea ; Pandanaceae ; Papua
    Repository Name: National Museum of Natural History, Netherlands
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  • 4
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    A new species of Schoenorchis (Orchidaceae) from West Java, Indonesia (2023)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 68 no. 1, pp. 66-69
    Details
    Publication Date: 2024-03-17
    Description: Schoenorchis kembangleutik Yudistira & Mustaqim described here as new to science is an orchid species \ncurrently considered endemic to West Java. It is similar to S. pachyachris (J.J.Sm.) J.J.Sm. from Sumatra and Java \nbut differs in having flowers with midlobe of labellum orbicular (vs oblong) with horizontal and rounded (vs pointing \nupwards and tapering to a point) apex, the labellum side lobes white, uncinate and retrorse at the apex (vs yellow, \nstraight and erect at apex), and in having shorter spurs with straight base (2 vs 4 mm long, with geniculate base). \nA morphological description, notes on distribution, habitat and ecology, an illustration, photographs and a key to \nthe five species of Schoenorchis of Java are provided.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Aeridinae ; flora of Indonesia ; Malesia ; Schoenorchis kembangleutik ; taxonomy
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  • 5
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    A new species of Freycinetia Gaudich. (Pandanaceae; Freycinetoideae) from the island of Halmahera, the Moluccas, Indonesia (2022)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 2, pp. 129-131
    Details
    Publication Date: 2024-03-24
    Description: A new species of Freycinetia Gaudich. (Pandanaceae; Freycinetoideae) with conspicuous ellipsoid leaves and spiny auricles from the island of Halmahera in the Moluccan Archipelago is here newly described as F. halmaherensis A.P.Keim, W.Sujarwo & Sahroni. A full description of the new species and a key to the species of Freycinetia in the Moluccas are provided.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Freycinetia ; Freycinetoideae ; Halmahera ; Moluccas ; Pandanaceae
    Repository Name: National Museum of Natural History, Netherlands
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  • 6
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    Taxonomic studies of Araceae in Myanmar IV: A new species, a new record and a new synonym for the genus Amorphophallus (2022)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 2, pp. 123-128
    Details
    Publication Date: 2024-03-24
    Description: Amorphophallus wasa Naive, K.Z.Hein & Hett., is described and illustrated as a species new to science from the Sagaing Region, Myanmar. It is morphologically similar to A. saraburiensis Gagnep., but can be easily distinguished by its unilocular ovaries and lack of staminodes between pistillate and staminate zones. A detailed description, colour plates, phenology, distribution map, provisional conservation status and a key to the Amorphophallus species from Myanmar are provided. In addition, A. elatus Hook.f. is reported as a newly recorded species for Myanmar, and the name A. corrugatus N.E.Br. is newly synonymized under A. kachinensis Engl. & Gehrm.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Aroideae ; biodiversity ; Burma ; plant taxonomy ; Southeast Asian Flora
    Repository Name: National Museum of Natural History, Netherlands
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  • 7
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    Three new species and several typifications of Breynia (Phyllanthaceae) from Malesia (2022)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 2, pp. 132-138
    Details
    Publication Date: 2024-03-24
    Description: Three new species of Breynia are described for Malesia, B. longistyla from Borneo, B. papillosa from New Guinea, and B. suborbicularis from Sulawesi. They are primarily distinguished by characters of indumentum, leaves, and styles. Ten lectotypes and one neotype are designated, and one new synonym is proposed.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Breynia ; lectotype ; Malesia ; neotype ; Phyllanthaceae
    Repository Name: National Museum of Natural History, Netherlands
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  • 8
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    A just overtime discovery: another new species of Echinosepala (Orchidaceae) from Costa Rica (2022)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 2, pp. 109-112
    Details
    Publication Date: 2024-03-25
    Description: Echinosepala truncata is described as new to science and illustrated from the holotype. It is compared with E. tomentosa, from which it differs by the sparsely lanate ovary, the narrowly obovate, apically rounded synsepal, the spathulate, apically and basally rounded petals, and the rectangular, apically truncate lip. The phylogenetic relationships of the new species could be hypothesized based on a shared set of morphological characters and geographic distribution.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; flora of Costa Rica ; new species ; Península de Osa ; phylogeny ; Pleurothallidinae
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  • 9
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    Plant hunter Hans Nooteboom passed away (1934–2022) (2022)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 2, pp. xv-xix
    Details
    Publication Date: 2024-03-25
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Hans Nooteboom ; Obituary
    Repository Name: National Museum of Natural History, Netherlands
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  • 10
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    Contribution to a revision of Hoya (Apocynaceae: Asclepiadoideae) of Papuasia. Part II: eight new species, one new subspecies (2022)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 2, pp. 139-155
    Details
    Publication Date: 2024-03-25
    Description: In the present paper we publish eight new species from New Guinea, H. domaensis, H. gauttierensis, H. liddleana, H. lucida, H. paradisea, H. pulleana, H. tarikuensis, and H. unirana, and one subspecies, H. krusenstierniana subsp. laticorolla. Five taxa were first diagnosed based on specimens at the Leiden herbarium, one species is only known from a collection at Edinburgh and Lae herbaria, while three are based on recently collected specimens. Hoya leucantha, originally described from a specimen in bud, has been identified among herbarium specimens and was also recently recollected. It is therefore fully described and illustrated for the first time.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics
    Repository Name: National Museum of Natural History, Netherlands
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  • 11
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    Two new magnoliid (Annonaceae, Lauraceae) tree species from Manabí, western Ecuador (2022)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 2, pp. 97-108
    Details
    Publication Date: 2024-03-31
    Description: Western Ecuador harbours high plant diversity and endemism. The region of Manabí has known intense deforestation over the last decades, but lowland rain forests persist in a network of small forest fragment patches. Here, we describe two new magnoliid tree species from a small privately owned forest fragment known as La Esperanza reserve, in the El Carmen canton (Manabí): Aniba ecuadorica (Lauraceae) and Guatteria esperanzae (Annonaceae). For both species a detailed morphological description, a preliminary conservation status following IUCN criteria, distribution maps and high quality photographs are provided. This represents the second species of Aniba known to occur in western Ecuador, while there are 14 species of Guatteria documented for Ecuador west of the Andes. Aniba ecuadorica is only known from two localities and has a preliminary IUCN conservation status of Critically Endangered, while Guatteria esperanzae is known from six localities and is suggested to be Endangered. Finally, we provide a quick overview of Guatteria species in western Ecuador with a key to the species in the region. The description of these two new tree species underlines the important need of prospection and conservation of the remnant forests in the Manabí region of western Ecuador. We also stress the importance of privately owned forest fragments for biodiversity conservation.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Aniba ; deforestation ; Guatteria ; IUCN conservation assessments ; Manabí region ; new species
    Repository Name: National Museum of Natural History, Netherlands
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  • 12
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    Phanera mekongensis (Fabaceae: Cercidoideae), a new species from Thailand as supported by morphological and molecular evidence (2022)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 2, pp. 113-122
    Details
    Publication Date: 2024-03-26
    Description: Phanera mekongensis, a new species from Phu Wua Wildlife Sanctuary, Northeastern Thailand, is described and illustrated. The morphological description of the new species is provided and discussed in comparison with closely related species. The molecular data from nuclear and chloroplast markers show that the new taxon is robustly positioned in a well-supported Phanera clade that includes the type species of the genus, P. coccinea.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Bauhinia ; ITS ; molecular phylogeny ; new taxon ; Phanera ; Phu Wua ; trnL-F
    Repository Name: National Museum of Natural History, Netherlands
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  • 13
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    The book herbaria of Jacob Breyne (1637–1697) in the collection of Naturalis Biodiversity Center (Leiden, the Netherlands) (2022)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 2, pp. 77-96
    Details
    Publication Date: 2024-04-08
    Description: Historic herbaria can provide a wealth of information on a diversity of topics, including the past occurrence of plants, their abundance, names and uses. However, 16th and 17th century herbaria are rare and very fragile, and can best be studied after digitization. The collection of Naturalis Biodiversity Center in Leiden, the Netherlands, contains two book herbaria by Jacob Breyne (1637–1697) of Danzig (presently Gdańsk, Poland). These herbaria, dated 1659 and 1673, contain a total of 105 specimens in various states of intactness, and with or without original labels. The identity of the specimens in the Leiden Breyne herbaria was not completely assessed previously. Here we discuss the taxa represented within these two historic herbaria as well as the information contained in the handwritten texts within them. The two Breyne herbaria combined were found to contain 62 species, representing 24 plant families. Both herbaria contain several species now rare around Gdańsk, including two species currently considered regionally extinct (Swertia perennis (Gentianaceae) and Dactylorhiza viridis (Orchidaceae)). Labels with the specimens give a range of information on the collecting locations, ecology, abundance and/or use of the species. The Leiden Breyne herbaria reveal changes in the flora of northern Poland over the course of three centuries, as well as pre-Linnaean nomenclature, historic uses of plants and international correspondence between scientists.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Gdańsk ; historic herbaria ; history of botany ; Poland ; Pomerania
    Repository Name: National Museum of Natural History, Netherlands
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  • 14
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    A new species of Freycinetia Gaudich. (Pandanaceae; Freycinetoideae) with pseudopetioliform leaves from Arfak Mountains, Papua, Indonesia (2022)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 2, pp. 156-158
    Details
    Publication Date: 2024-04-23
    Description: A new species of Freycinetia Gaudich. (Pandanaceae; Freycinetoidea) with obvious pseudopetiolate basal leaf from Mount Tombrok in the vicinity of theArfak Mountains, West Papua, Indonesian New Guinea, is newly described as Freycinetia pseudopetiolataA.P.Keim, K.Kartawinata & W.Sujarwo. The possession of the pseudopetiolate basal leaf form places this new species in the section Pseudopetiolosae; thus marking the first presence of the section for mainland New Guinea.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Arfak ; Freycinetia ; New Guinea ; Pandanaceae ; Papua ; Pseudopetiolosae
    Repository Name: National Museum of Natural History, Netherlands
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  • 15
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    In memoriam Dries Touw, an extraordinary bryologist (31 March 1935 – 23 March 2021) (2022)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 1, pp. viii-xiii
    Details
    Publication Date: 2024-05-10
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics
    Repository Name: National Museum of Natural History, Netherlands
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  • 16
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    In memoriam Max Michael Josephus van Balgooy (1932–2021) (2022)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 1, pp. i-v
    Details
    Publication Date: 2024-05-02
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics
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  • 17
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    The Malesian species of Dalechampia (Euphorbiaceae) (2022)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 1, pp. 26-32
    Details
    Publication Date: 2024-05-03
    Description: Dalechampia is a mainly South American genus of generally climbing shrubs with usually sharp stiff trichomes in some of the inflorescence parts. The bisexual inflorescences are very condensed and subtended by two, often showy, large bracts. The three pistillate flowers are separate from the staminate subinflorescence (both groups with their own bracts). The staminate subinflorescence contains groups of staminodial-like bractlets that provide resin for female bees or fragrance for male bees. In west Malesia (Sumatra and Java) one indigenous species is found, the climbing D. bidentata, and occasionally cultivars of the subshrub D. spathulata.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Dalechampia ; Euphorbiaceae ; Malesia ; Plukenetieae
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  • 18
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    Synopsis of the genus Drosera (Droseraceae) in Angola and the Democratic Republic of the Congo (2022)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 1, pp. 1-14
    Details
    Publication Date: 2024-05-03
    Description: While someAfrican Floras were continuously revised and several are now almost completed, the Flora of Angola’s ‘Conspectus Florae Angolensis’ still remains incomplete. This applies also for Droseraceae and the genus Drosera. Our study aims to provide an identification key for Drosera ofAngola and the Democratic Republic of the Congo, including all morphological characters of the different Angolan and Congolese taxa. Loans from different herbaria were studied. A list of important morphological characters was combined with data obtained by observations and measurements. Beside the identification key, nine species descriptions with drawings of the main characteristics, distribution maps and SEM-pictures of pollen and seed morphology are provided. The possibility of hybridisation is discussed. Despite difficulties such as varying morphology or hybridisation in some species, the identification key enables researchers to identify specimens by morphological characters.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Angola ; Democratic Republic of the Congo ; distribution ; Drosera ; identification key ; taxonomy
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  • 19
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    A synoptic revision of the golden glories, genus Decalobanthus Convolvulaceae (2022)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 1, pp. 37-70
    Details
    Publication Date: 2024-05-03
    Description: Eighteen species of Decalobanthus are recognized in this concise revision of the genus. Two new combinations are made and one new name is proposed to accommodate a change in rank. The genus is centered in SoutheastAsia and Malesia, with outlier species in the tropical Pacific and one species that reaches the Neotropics; a single wide-ranging species extends from eastern Tropical Africa and Madagascar in the west to the Hawaiian Islands in the east. Each species is provided with a diagnosis, summary of the species’ ecology, compiled vernacular names, and uses. Distributions are mapped based on herbarium voucher specimens. Where appropriate, typifications and nomenclatural problems are explained and comments on morphological variation and the need for further study are highlighted. Selected species are illustrated with colour photos of living plants. An index of numbered collections examined is provided to aid in specimen identification and herbarium curation.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; biodiversity ; Convolvulaceae ; Decalobanthus ; Malesia ; Merremia ; Southeast Asia ; taxonomy
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  • 20
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    Revision of the genera Leptopus and Notoleptopus (Phyllanthaceae) in Malesia (2022)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 1, pp. 20-25
    Details
    Publication Date: 2024-05-04
    Description: A revision of Leptopus and Notoleptopus (Phyllanthaceae tribe Poranthereae) in Malesia is presented. Both genera are present with a single species in Malesia, L. australis and N. decasnei, respectively. Phylogenetically the two genera are distinct, but morphologically their differences are minimal. Nomenclature, descriptions, distributions and various notes are presented, just as a technical drawing of both species.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Leptopus ; Malesia ; Phyllanthaceae ; Poranthereae ; revision ; taxonomy
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  • 21
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    A new Philippine species of Ridsdalea (Rubiaceae, Ixoroideae) from karst vegetation in Palawan (2022)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 1, pp. 15-19
    Details
    Publication Date: 2024-05-07
    Description: Ridsdalea philippinensis (Rubiaceae), a new species from the karst forest in El Nido (Palawan, Philippines), is described and illustrated. It is unique among Malesian Ridsdalea species in having a corolla tube that is distinctly inflated at the apex, a character state also displayed by R. sootepensis and R. thailandica from Laos and Thailand. Amongst others, R. philippinensis, however, differs from both of these species in having smaller flowers and anthers that do not emerge from the corolla tube. An updated key for Philippine Ridsdalea is also presented.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; El Nido-Taytay Managed Resource Protected Area ; Gardenieae ; Malesia ; Philippines ; Ridsdalea ; Rubiaceae
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  • 22
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    Curcuma stahlianthoides Zingiberaceae , a new species from northeastern Thailand dispersed by ants (2022)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 1, pp. 71-75
    Details
    Publication Date: 2024-05-06
    Description: Curcuma stahlianthoides, a new species of Curcuma subg. Hitcheniopsis (Zingiberaceae: Zingiberoideae) from northeastern Thailand is described and illustrated here. The flower morphology of C. stahlianthoides resembles several other species formerly classified in the genus Stahlianthus, but the inflorescences are composed of up to 11 plain green fertile bracts, conforming to the typical inflorescence structure in the genus Curcuma. This combination of characters is similar to C. leonidii from Vietnam, to which it is compared for the diagnostic purposes. Previous molecular results indicate that Stahlianthus should be merged with Curcuma subg. Hitcheniopsis and C. stahlianthoides is the second species providing morphological justification to do so. A detailed description based on living flowering material, colour plates including the flower dissection, and notes on distribution, habitat and phenology are also provided. The status of Vulnerable is proposed for this species based on the IUCN guidelines and criteria. Observations on ant-aided seed dispersal of this species are reported and discussed within present knowledge of myrmecochory in gingers.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; ant-aided seed dispersal ; Curcuma leonidii ; Curcuma subg. Hitcheniopsis ; myrmecochory ; Stahlianthus ; vulnerable
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  • 23
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    In memoriam Emma Elizabeth van Nieuwkoop (1933–2022) (2022)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 1, pp. vi-vii
    Details
    Publication Date: 2024-05-05
    Keywords: Obituary ; Plant Science ; Ecology ; Evolution ; Behavior and Systematics
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  • 24
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    Gomphostemma phetchaburiense (Lamiaceae), a new species from a limestone karst in southwest Thailand (2022)
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 67 no. 1, pp. 33-36
    Details
    Publication Date: 2024-05-08
    Description: Gomphostemma phetchaburiense, a new species from Phetchaburi Province, Thailand, is described and illustrated. A key to the species of Gomphostemma in Thailand is provided and conservation status and the dimorphic leaf characters are discussed.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; convective heat ; Gomphostemma ; Lamiaceae ; leaf serration ; limestone ; Primulina
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  • 25
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    New chromosome counts and other karyological data for members of the Stemonaceae (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 1, pp. 53-56
    Details
    Publication Date: 2024-05-22
    Description: Chromosome numbers and other karyological data for ten Stemona species and for Stichoneuron caudatum are presented, including first reports for Stemona burkillii, S. involuta, S. mairei and S. phyllantha.All investigated taxa of Stemona exhibit n = x = 7 (2n = 14) chromosomes. For Stichoneuron caudatum an earlier count revealing 2n = 18 is confirmed. The observed chromosome lengths range between 0.9 and 6.9 μm (largest chromosome in Stichoneuron caudatum).Additionally, the genome sizes of seven Stemona species and of Stichoneuron caudatum are reported. The obtained results are compared with literature data and discussed.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; chromosome length ; chromosome number ; genome size ; karyology ; Stemona ; Stemonaceae ; Stichoneuron
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  • 26
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    Two new species of Hanguana (Hanguanaceae) from Kalimantan, Indonesia (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 1, pp. 101-105
    Details
    Publication Date: 2024-05-22
    Description: Two new Hanguana species from Kalimantan, Indonesian Borneo, are described here. Hanguana karimatae from Karimata Island, West Kalimantan province, is characterised by a stout habit, prominently oblique yellow fruits with raised stigma and 1- or 2-seeded fruits. Hanguana nana from Central Kalimantan province is the smallest species in the genus with the stem entirely covered by leaves, deflexed barely branched infructescences with only a few fruits, each with a single bowl-shaped seed with a large and incurved appendage. These are the first descriptions of new Hanguana species from Kalimantan (Indonesian Borneo). Colour plates as well as notes on distribution, ecology, habitat and conservation status are provided.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Borneo ; Hanguana karimatae ; Hanguana nana ; Kalimantan ; Karimata Island ; taxonomy
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  • 27
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    New combinations and names for some Philippine vascular plants (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 1, pp. 96-100
    Details
    Publication Date: 2024-05-22
    Description: New names and new combinations are presented for 29 Philippine species in the families Acanthaceae, Aspleniaceae, Cucurbitaceae, Gesneriaceae, Lauraceae, Myrtaceae, Oleaceae, Thelypteridaceae, Urticaceae, and Vitaceae. Seventeen names are lectotypified.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; lectotypification ; nomenclature ; Philippines ; taxonomy
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  • 28
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    Studies in Papuasian Syzygium (Myrtaceae): 2. The furfuraceous species of subg. Syzygium (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 1, pp. 57-81
    Details
    Publication Date: 2024-05-22
    Description: The furfuraceous species of Syzygium subg. Syzygium in Papuasia are revised. The scurfy, furfuraceous epidermis that is a feature of the inflorescence branches and sometimes also of the hypanthium, the commonly chestnut brown colour of the dried leaves, and the reduced calyx that occurs in many species are characteristic features of the group. Within this subgenus, a new section Furfuraceum is described to accommodate these morphologically recognisable species. Descriptions are provided for each of the 40 species recognised, 28 of which are new. An identification key, distribution maps and an index to numbered exsiccatae are provided.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Furfuraceum ; identification key ; maps ; Myrtaceae ; Papuasia ; revision ; Syzygium
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  • 29
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    The Zierikzee Herbarium: contents and origins of an enigmatic 18th century herbarium (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 1, pp. 1-52
    Details
    Publication Date: 2024-05-22
    Description: The Municipal Museum of Zierikzee (The Netherlands) houses a loose-leafed herbarium containing 354 plant specimens, of which the provenance, age and maker were until recently unknown. By studying the plant specimens, paper, decorations and labels, an image was conveyed of an early 18th century herbarium that matched the description of a herbarium from the legacy of Jacob Ligtvoet (1684–1752), gardener in the Hortus botanicus of Leiden (The Netherlands) from 1703 till his death in 1752. This herbarium is one of the oldest garden herbaria of its kind and contains 306 unique species, of which 201 are currently native to the Netherlands. Exotic species come from the Mediterranean (81 spp.), South Africa (8), the Americas (10) and tropical Asia (7) and for the larger part from Europe and temperate Asia. Based on our comparison of names on the oldest labels, this collection of dried plants was probably started after publication of the first garden catalogue by the prefect of the Leiden hortus and professor of botany Herman Boerhaave (1710), but before the second edition in 1720. This historic herbarium reflects the state-of-the-art of botanical science and the international network of Dutch botanical gardens in the early 18th century
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; 18th century ; Boerhaave ; gardeners ; Holland ; Leiden ; Ligtvoet ; Linnaeus
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  • 30
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    Canthium obscurum W. J. de Wilde & Duyfjes, sp. nov., a new name for a widespread, wrongly interpreted species (Vanguerieae-Rubiaceae) (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 1, pp. 93-95
    Details
    Publication Date: 2024-05-23
    Description: A widespread Canthium species of upland northern Thailand, Laos, and China, known erroneously as C. parvifolium (described from India) or C. horridum (described from Java) is formally described as a new species Canthium obscurum. Aphotograph of fruiting twigs and line drawings of the flower are added. Canthium parvifolium is lectotypified by a herbarium specimen in P.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics
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    A new species of Chingia (Thelypteridaceae) from Vanikoro, Solomon Islands (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 3, pp. 223-226
    Details
    Publication Date: 2024-05-03
    Description: A new species of Chingia, known only from Vanikoro in the Solomon Islands, is described and illustrated. It is distinctive in having flat, thickened, tortuous stipe scales. It is most closely related to an accession of Chingia clavipilosa from Mount Kinabalu, from which it is distinguished by its lack of hyaline acicular hairs on the abaxial laminar axes. Other Chingia species in the Solomon Islands are distinguished by having abundant stiff, terete stipe scales.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Chingia ; endangered species ; endemic ; fern ; Papuasia ; Solomon Islands ; Thelypteris
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    Hoya buntokensis (Apocynaceae, Asclepiadoideae), a new myrmecophytic species and Hoya wallichii subsp. tenebrosa, a new subspecies from Borneo (Kalimantan, Indonesia) (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 3, pp. 236-241
    Details
    Publication Date: 2024-05-03
    Description: We describe a new Hoya species from Central Kalimantan, H. buntokensis, and a new subspecies of H. wallichii from West Kalimantan, Hoya wallichii subsp. tenebrosa. Hoya buntokensis is part of a group of four species that form specialised leaf structures harbouring ants (here defined as megadomatia), and it is most similar to H. undulata. Hoya buntokensis differs from H. undulata in lamina margin (flat vs undulate); shape of corona lobes outer processes (fan shaped vs elliptic), and in the pollinarium morphology (corpusculum larger than pollinia vs corpusculum smaller than pollinia). Both H. wallichii subsp. wallichii and H. wallichii subsp. tenebrosa are slender plants with ovate to oblong, thinly coriaceous glabrous leaves, slender peduncles with 1 or 2 flowers open at a time, and broadly campanulate corollas. Hoya wallichii subsp. tenebrosa differs from H. wallichii subsp. wallichii in corolla colour (dark purple with a paler edge vs white-cream), corona lobe shape and surface (broadly elliptic, spreading and with a minute inner process, almost black with a velvety surface vs kidney-shaped, erect and with a well-developed acuminate inner process, purple with a shiny surface).
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; ant plant ; epiphyte ; heath forest ; Hoya darwinii ; Hoya mitrata ; Hoya undulata ; Hoya wallichii ; megadomatium ; myrmecophyte ; Southeast Asia
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    In memoriam Dr Eduard Ferdinand (Ed) de Vogel (1942–2021) (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 3, pp. x-xiv
    Details
    Publication Date: 2024-05-03
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics
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  • 34
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    Expansion of the fern genus Lecanopteris to encompass some species previously included in Microsorum and Colysis (Polypodiaceae) (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 3, pp. 242-248
    Details
    Publication Date: 2024-05-03
    Description: The fern genus Microsorum is not monophyletic, with previous phylogenetic analyses finding three lineages to group not with the type species, but to form a grade related to the 13 species of Lecanopteris. These three lineages have recently been recognised as separate genera: Bosmania, Dendroconche, and Zealandia. Here, we explore the morphological characterisation of Lecanopteris and these other three lecanopteroid genera. While the traditional circumscription of Lecanopteris has seemed sacrosanct, its defining morphological character states of rhizome cavities and ant brooding associations occur in other lecanopteroid ferns and elsewhere in the Polypodiaceae. Instead, we suggest that the morphological characterisation of an expanded Lecanopteris including the Dendroconche and Zealandia lineages is just as good, if not better, with the pertinent character states being the absence of sclerenchyma strands in the rhizome and at least some fronds having Nooteboom’s type 5 venation pattern. This wider circumscription is also better able to accommodate phylogenetic uncertainty, and it means that groups of species traditionally placed together in a single genus are not distributed across different genera. General users familiar with the narrower circumscription of Lecanopteris will not be significantly disrupted, because there is little geographic overlap with the lineages added to the genus. Consequently, we make new combinations in Lecanopteris for 11 species and one subspecies.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Bosmania ; Colysis ; Dendroconche ; lecanopteroid ; microsoroid ; taxonomy ; Zealandia
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  • 35
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    Women in the first three centuries of formal botany in southern Africa (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 3, pp. 275-307
    Details
    Publication Date: 2024-05-03
    Description: Southern Africa is globally known for its considerable floristic diversity and for the past several centuries the region has attracted the research attention of both foreign and southern African botanists. While the majority of the plant scientists, including taxonomists, working on the regional flora was male, women have made significant contributions to the botany of southern Africa. We provide a comprehensive review of the role women played in botany in the region, from the earliest days of recorded botanical endeavour (c. mid-17th century) and for the ensuing c. 300 years. The women are exhaustively catalogued and the parts they played in advancing botany, and where appropriate some related plant-based activities, such as horticulture, are noted and assessed. It is shown that women played an important but generally underappreciated role in botanical research, fieldwork, and specimen collecting, as well as in herbarium management and institutional development.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; gender ; herbarium ; institutional development ; research ; specimen collecting
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    Taxonomic evaluation of Nymphoides ( Menyanthaceae) in eastern Asia (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 3, pp. 249-262
    Details
    Publication Date: 2024-05-04
    Description: According to recent taxonomic treatments, up to 13 Nymphoides species exist in eastern Asia, with some species purported to be narrowly endemic. However, these treatments have largely covered rather limited geographic areas, whereas the genus can be found worldwide. In order to evaluate the global distinctness of currently accepted Nymphoides species in easternAsia, we quantitatively examined their distinguishing morphological characters using information from published treatments and data from herbarium specimens. Out of 13 evaluated species, nine were found to be morphologically distinct (N. aurantiaca, N. cambodiana, N. coreana, N. hastata, N. hydrophylla, N. indica, N. lungtanensis, N. parviflora, N. peltata), and the remaining species (N. coronata, N. cristata, N. siamensis, N. tonkinensis) lacked characters that clearly could distinguish them. We thus propose that the morphologically indistinct species should be considered synonymous with other Nymphoides species. Herein we establish N. parviflora comb. nov., to accommodate the species that was heretofore known by the invalid name N. parvifolia. Lectotypes are designated for Limnanthemum calycinum, L. coreanum, L. coronatum, L. hastatum, L. kleinianum, and L. tonkinense, and neotypes are designated for Menyanthes hydrophylla and M. nymphoides.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Cambodia ; China ; endemism ; Laos ; Nymphoides ; Thailand ; Vietnam
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    Revision of the African species of Monanthotaxis (Annonaceae) (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 2, pp. 107-221
    Details
    Publication Date: 2024-05-04
    Description: This taxonomic revision of the continental African species of Monanthotaxis (Annonaceae) includes 79 species and one variety. Thirteen new species (M. aestuaria, M. bidaultii, M. confusa, M. glabra, M. hexamera, M. mcphersonii, M. quasilanceolata, M. sterilis, M. submontana, M. suffruticosa, M. ursus, M. vulcanica and M. wieringae) are described and 5 new combinations (M. biglandulosa, M. kenyensis, M. ochroleuca, M. pynaertii and M. seretii) are made. The genus Monanthotaxis consists of lianas or lianescent shrubs. It occurs throughout forests in tropical Africa and the highest species diversity is found in the Western Central African rain forests. A key for flowering material is provided, just like a synoptic key including 45 characters. Topics included in the revision are the history of the taxonomy of Monanthotaxis, morphology, leaf anatomy, floral biology, distribution and habitat, phylogeny and finally ethnobotany and phytochemistry. Each species is fully described including synonymy, notes on distribution, habitat & ecology, vernacular names, uses and a preliminary IUCN conservation status. Distribution maps are provided for all species, illustrations for 48 species and photographs of 22 species. An index of exsiccatae and an index of the scientific names are included at the end.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; distributions ; ethnobotany ; floral biology ; habitat ; leaf anatomy ; morphology ; phylogeny ; phytochemistry ; pollination ; seed dispersion
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    In memoriam Jan van Os (1942 – 2021), great botanical illustrator (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 3, pp. vii-ix
    Details
    Publication Date: 2024-05-05
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics
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  • 39
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    In memoriam Willem Jan Jacobus Oswald de Wilde (1936–2021) (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 3, pp. i-vi
    Details
    Publication Date: 2024-05-05
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics
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  • 40
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    An urban fern refugium: Municipal Ecological Reserve of Avellaneda (Eco Área) (Buenos Aires, Argentina) (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 3, pp. 227-235
    Details
    Publication Date: 2024-05-05
    Description: The riparian forest is one of the most diverse environments of the La Plata River plains. It is represented by patches of humid forests, which are a valuable source of ecosystem services and have recreational and educational potential. However, the riparian forest has undergone constant modification, worsened by private real-estate developments and a lack of government regulation. Among the reserves that protect the riparian forest, the Municipal Ecological Reserve of Avellaneda is the closest to the southern limit of the Autonomous City of Buenos Aires. Although there are around 300 species of wild fauna and flora informally registered in the area, there are only a few studies published about its biodiversity. In this work, the diversity of thirteen native and exotic ferns in the core area (Eco Área) of the reserve is characterized, the origin of the species is also evaluated and comparisons are made with other nearby protected areas. The Eco Área of the Reserve plays an important role as part of the urban reserve corridor of the La Plata River plains and constitutes a refuge for both native and exotic ruderal species. The present work represents the basis for future studies about the population dynamics and the colonization strategies of the ferns.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Buenos Aires ; diversity ; ferns ; protected areas ; riparian forest ; ruderal
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  • 41
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    The four W's of two 18th century Dutch herbaria: the 'Zierikzee Herbarium' and the herbarium of Simon D'Oignies (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 3, pp. 263-274
    Details
    Publication Date: 2024-05-05
    Description: One of the objects of the Municipal Museum Zierikzee (Province of Zealand, The Netherlands) is a historical herbarium referred to by the name the ‘Zierikzee Herbarium’. The characteristics of the specimens in the Zierikzee Herbarium are so similar to those in a herbarium at Naturalis Biodiversity Center, Leiden (L), that both must originate from the same place and time. About the latter herbarium little is known, except that it was once owned by the army-surgeon Simon(e) d’Oignies (1740–1782). The Zierikzee Herbarium was recently described and analysed in detail by Offerhaus et al. (2021). It is hypothesised that the Zierikzee Herbarium is part of a herbarium made by Professor Martinus Wilhelmus Schwencke (1707–1785) and was used during his lectures for future pharmacists in his botanical garden in The Hague in the 1750s, and auctioned in Leiden in 1785. The presence in the Zierikzee Herbarium of a virtually complete set of medicinal plants mentioned in the ‘Pharmacopoea Hagana’ (Anonymous 1738) eventually led to the conclusion that these could not have been assembled before 1730. Based on the printed ornaments that are used to mount the plants in these, and the major Dutch herbaria of the 18th century, I argue that the plants in the Zierikzee Herbarium and the herbarium of D’Oignies were remounted at a later date. The hypothesis by Offerhaus et al. (2021: 12) that the Zierikzee Herbarium was started between 1710 and 1720 is rejected. Arguments are given why it is unlikely that the Zierikzee Herbarium, as is suggested by Offerhaus et al. (2021: 12), is the herbarium of the head gardener of the Leiden botanic garden, Jacob Ligtvoet (1684–1752) and was auctioned in 1752.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; 18th century Dutch herbaria ; Jacob Ligtvoet ; Pharmacopoea Hagana ; printed herbarium ornaments ; Martinus Wilhelmus Schwencke
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    Asplenium alleniae (Aspleniaceae), a new fern species from Borneo and New Guinea (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 3, pp. 219-223
    Details
    Publication Date: 2024-06-06
    Description: A new species, Asplenium alleniae, is described from high elevation habitats in Sabah (Malaysia) and Papua New Guinea. Previous phylogenetic analyses of chloroplast loci determined that A. alleniae was most closely related to A. pauperequitum from New Zealand. Asplenium alleniae differs from A. pauperequitum most obviously by the acuminate apices of its longer pinnae. The combination of pinnate fronds with few pairs of primary pinnae and dark red-brown axes distinguishes A. alleniae from superficially similar species of Asplenium in Malesia. Asplenium alleniae is provisionally assessed as Endangered.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; conservation ; Malaysia ; Malesia ; Mount Kinabalu ; Papua New Guinea ; Sabah ; taxonomy
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    A new subspecies and new records of Trichosanthes (Cucurbitaceae) for India, and notes on T. khasiana (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 3, pp. 233-243
    Details
    Publication Date: 2024-06-06
    Description: In India, knowledge of the geographic distribution of Trichosanthes species is inadequate, largely due to the lack of revisionary work. Based on field observations, collected specimens and data from herbarium specimens, this paper describes a new taxon – T. dunniana subsp. clarkei from Sikkim and northern hill districts of West Bengal in northeastern India; and presents the first confirmed records of three southeast Asian taxa, viz., T. dunniana subsp. dunniana and T. wallichiana subsp. subrosea from northeastern India, and T. tricuspidata from the Andaman & Nicobar Islands. The name T. khasiana has been lectotypified, and Indochinese T. inthanonensis has been reduced under it. The southern Chinese Trichosanthes subrosea is transferred at reduced rank as T. wallichiana subsp. subrosea, while T. tridentata has been reduced to synonymy of this subspecies. Furthermore, we provide an updated distribution map with confirmed occurrences of these taxa in India, critical taxonomic notes and additional taxonomic characters.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; distribution ranges ; India ; Trichosanthes dunniana ; subsp. clarkei ; Trichosanthes khasiana ; Trichosanthes tricuspidata ; Trichosanthes wallichiana ; subsp. subrosea
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  • 44
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    Four new Curcuma species (Zingiberaceae) from Thailand (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 3, pp. 244-253
    Details
    Publication Date: 2024-06-06
    Description: Four new Curcuma species (Zingiberaceae) from Thailand are described here. Curcuma fimbriata, C. micrantha and C. spathulata belong to C. subg. Hitcheniopsis, while C. globulifera belongs to the nominal C. subg. Curcuma. Each species is compared to the morphologically closest species and detailed descriptions, colour plates and information on their distribution, ecology, phenology and uses are provided. A preliminary IUCN conservation assessment of each of these species is proposed.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Curcuma globulifera ; Curcuma fimbriata ; Curcuma micrantha ; Curcuma parviflora ; Curcuma spathulata ; Curcuma subg. Hitcheniopsis
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  • 45
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    Distribution of cystoliths in the leaves of Acanthaceae and its effect on leaf surface anatomy (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 3, pp. 224-232
    Details
    Publication Date: 2024-06-06
    Description: Cystoliths are large outgrowths of cell wall material and calcium carbonate with a silicon-containing stalk found in the leaves, stems and roots of only a handful of plant families. Each cystolith is contained within a cell called a lithocyst. In leaves, lithocysts may be found in the mesophyll or the epidermis. Astudy by Koch et al. (2009) reported unique, indented features on the surface of superamphiphilic Ruellia devosiana (Acanthaceae) leaves which the authors named ‘channel cells’. We report herein that such ‘channel cells’ in the Acanthaceae are actually lithocysts containing fully formed cystoliths in which only a portion of the lithocyst is exposed at the epidermis, forming a leaf epidermal impression. Intact leaves and isolated cystoliths from 28 Acanthaceae species (five in the non-cystolith clade and 23 in the cystolith clade) were examined using light and scanning electron microscopy and X-ray microanalysis. All 23 members of the cystolith clade examined contained cystoliths within lithocysts, but not all showed leaf epidermal impressions. In four species, the lithocysts were in the leaf mesophyll, did not contact the leaf surface, and did not participate in leaf epidermal impression formation. The remaining 19 species had lithocysts in the epidermis and possessed leaf epidermal impressions of differing sizes, depths and morphologies
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics
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  • 46
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    Four flowering plant species described from Katanga (Democratic Republic of the Congo) are based on specimens collected in Guangxi, China (2021)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 66 no. 1, pp. 82-92
    Details
    Publication Date: 2024-06-14
    Description: The original set of botanical collections of the agronomist H.A. Homblé is conserved in the herbarium BR. Homblé was one of the first collectors (1911–1913) for the flora of Katanga, Democratic Republic of the Congo. Many Homblé specimens were described as taxonomic novelties; 107 tropical African plant species are named after him. Before his colonial career in Katanga, Homblé stayed about two years (1909–1911) in Guangxi, China. His incompletely labelled Chinese collections were erroneously considered as collected in Katanga. This supposed African origin has led to confusion with regard to the identification, and even resulted in the description of four species believed to be new for science. This paper presents and discusses Homblé’s collection made in Guangxi, and the assumed novelties in it. Drosera insolita is a synonym of the Asian Drosera lunata, widespread from India to Australia. Three other species are new synonyms. Caesalpinia homblei is a synonym of the pantropical Caesalpinia bonduc. Digitaria polybotryoides is a synonym of Digitaria abludens, a widespread species in tropical Asia. Grewia katangensis is the only species that proved to be synonymous with an endemic species, Grewia cuspidatoserrata, only known from S Yunnan, and here reported as a new record for Guangxi. Lysimachia candida and Impatiens chinensis should be deleted from the list of the Congo Flora. The importance of careful specimen labelling and label interpretation is discussed.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics
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  • 47
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    Studies in Oberonia 8 (Orchidaceae: Malaxideae). Additional 24 new synonyms, a corrected spelling, and other nomenclatural matters (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 3, pp. 188-203
    Details
    Publication Date: 2024-05-20
    Description: The following 24 new synonyms in the orchid genus Oberonia are proposed, correct name (synonym(s)): O. aporophylla (O. longirepens); O. bertoldii (O. gracillima, O. laeta); O. bifida (O. celebica, O. fissiglossa); O. brunoniana (O. wallichii, O. saintberchmansii); O. costeriana (O. vulcanica); O. ensiformis (O. vesiculifera); O. griffithiana (O. khuongii); O. heliophila (O. asperula, O. rivularis, O. inversiflora, O. hosokawai); O. obcordata (O. menghaiensis); O. pachyphylla (O. janae); O. pachystachya (O. trignonoglossa); O. rhizomatosa (O. repens, O. torana, O. ponapensis, O. chenii, Hippeophyllum microphyllum); O. spathipetala (O. odontopetala, O. pectinata). Oberonia anicpita is not a distinct name introduced by Náves in F.M.Blanco but an orthographic variant of O. anceps, itself a synonym of O. lycopodioides. The spelling of several species epithets in honour of Takahide Hosokawa, a man, are corrected to hosokawai: Carpesium hosokawae (Asteraceae), Glochidion hosokawae (Phyllanthaceae), Pandanus hosokawae (Pandanaceae), Psychotria hosokawae (Rubiaceae), Eria hosokawae, Microtatorchis hosokawae, Habenaria hosokawae, Moerenhoutia hosokawae (all Orchidaceae).
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; nomenclature ; taxonomic vandalism ; typification ; variability
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  • 48
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    Phylogenetic analysis of the Calamus javensis complex (Arecaceae: Calamoideae) in Malesia (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 3, pp. 205-211
    Details
    Publication Date: 2024-05-22
    Description: A phylogenetic analysis on specimen level was made in possible support of a multivariate analysis of the Calamus javensis complex. Nine species, at some time recognized within the complex, and several recognisable forms were included. The phylogenetic markers used were the nuclear 5S spacer (5S nrDNA) and the chloroplast Maturase K (matK). The Bayesian analysis showed that only 5S provided some resolution. The 50 % majority rule consensus showed one major polytomy with a few supported groups, which were mainly morphologically unsupported pairs of specimens. However, one group, the form C. tenompokensis (the only distinct group in a multivariate analysis) is morphologically distinct and phylogenetically monophyletic and can be recognized as a species. Of all other recognizable forms, we only consider C. acuminatus to be regarded as a variety as it was not supported in the morphometric analysis.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Calamoideae ; Calamus javensis ; chloroplast DNA ; intraspecific variation ; matK ; molecular phylogeny ; nuclear DNA ; paraphyletic ; rattan
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  • 49
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    Flora of Singapore precursors, 19: Nomenclatural notes on Artabotrys (Annonaceae) and Magnolia (Magnoliaceae) (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 3, pp. 179-187
    Details
    Publication Date: 2024-05-25
    Description: During the preparation of the accounts of Artabotrys (Annonaceae) and Magnolia (Magnoliaceae) for the Flora of Singapore, the types of all relevant names were evaluated. New lectotypes are designated for A. suaveolens and M. maingayi and a second-step lectotypification is performed for M. elegans. The citation of a lectotype locality is corrected for A. costatus and the citation of an isolectotype is improved for A. maingayi. We also clarify the previous use of the term ‘type’ to designate specimens that are in fact lectotypes for several names in Magnolia.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Annonaceae ; Artabotrys ; lectotypification ; Magnoliaceae ; nomenclature ; Singapore
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    In memoriam David G. Frodin (8 April 1940 – 12 August 2019) (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 3, pp. xi-xviii
    Details
    Publication Date: 2024-05-17
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics
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    A new species of Freycinetia (Pandanaceae; Freycinetoideae) from Luzon Island, the Philippines (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 102-103
    Details
    Publication Date: 2024-06-06
    Description: A new species of Freycinetia (Pandanaceae; Freycinetoideae) from Llavac, Quezon Province in Luzon Island, the Philippines, is proposed here, namely Freycinetia nonatoi. Freycinetia nonatoi is characterized by a lobed auricle of the sheath with conspicuous spines on the margins and bright yellow bracts. These three morphological features distinguish it from the nearest species, F. sumatrana. The discovery of F. nonatoi also marks the first record of a member of the section Auriculifoliae with spiny margins.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Auriculifoliae ; Freycinetia ; Luzon ; Pandanaceae ; Philippines ; Quezon
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  • 52
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    Timonius eremiticus (Rubiaceae), a new species from the Philippines (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 104-106
    Details
    Publication Date: 2024-06-06
    Description: Timonius eremiticus, a new species from Mount Pulgar, Palawan Island, the Philippines, is here described and illustrated. It is morphologically close to T. flavescens but is characterized by membranous to chartaceous leaves with 2–4 pairs of lateral nerves, ivory-white corolla, bracteate staminate inflorescences bearing bracteolate flowers, 5-petaled pistillate flowers, (sub)globose fruits that are round and not 4-angled, and pyrenes being obliquely radiated in cross-section of fruits. Timonius eremiticus is assessed as Critically Endangered following IUCN criteria. Buod (Wikang Filipino)   Inilarawan at iginuhit sa lathalaing ito ang Timonius eremiticus na isang bagong espesye ng halaman na matatagapuan sa Bundok Pulgar sa pulo ng Palawan sa Pilipinas. Ito ay kawangis ng T. flavescens subalit natatangi dahil sa mga malalamad o malapapel nitong mga dahon na may dalawa o hanggang apat na pares ng nerbiyong lateral, kulay garing na mga talulot, brakteadong istaminate na mga inflorescence at bulaklak, mga pistiladong bulaklak na may limang talulot, (mala)bilugang mga bunga na hindi nakalundo sa apat, at mga pyrene na oblikong naka-radiate sa pahalang na hati ng mga bunga. Ang Timonius eremiticus ay itinataya rin na lubos nang nanganganib na maubos alinsunod sa mga pamantayan ng IUCN.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; endemic ; Guettardeae ; Mount Pulgar ; Palawan ; Rubiaceae ; Timonius
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    Peliosanthes macrophylla var. assamensis (Asparagaceae), a new variety from Behali Reserve Forest in Assam, Northeast India (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 121-125
    Details
    Publication Date: 2024-06-06
    Description: Peliosanthes macrophylla var. assamensis, a new variety from Behali Reserve Forest in Assam, Northeast India, is described with accompanying photos and relevant taxonomic data. It differs from var. macrophylla from Arunachal Pradesh and Sikkim, Northeast India, mainly by the staminal corona internally protruding near the middle (vs internally upright corona without a particular inward protrusion), shorter anthers somewhat divergent distally (vs nearly upright anthers), and longer, papillulate pistils exceeding the anthers (vs glabrous pistils not exceeding the anthers).
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Asparagaceae ; Eastern Himalayas ; floral structure ; new variety ; Peliosanthes macrophylla ; taxonomy
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  • 54
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    Senecio beltranii (Asteraceae, Senecioneae): a new caespitose species endemic to South Peru (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 162-166
    Details
    Publication Date: 2024-06-06
    Description: Senecio beltranii, a new species of Asteraceae (Senecioneae) belonging to S. ser. Suffruticosi subser. Caespitosi, is described from the highland mountains of southern Peru. Morphologically, S. beltranii is similar to S. algens, but can easily be distinguished by its subshrub matt-forming habit, the presence of scattered papillose trichomes on stems and leaves, its pinnatilobate leaf shape, larger involucre and pedicel length, calycular bracts nearly glabrous, larger phyllary length and by the larger number of phyllaries. The major differences between the species are outlined in a morphological comparison table and discussed. The IUCN status is defined as Vulnerable (VU).
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Asteraceae ; Senecio subser. Caespitosi ; South America ; taxonomy
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  • 55
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    The Pleuranthodium (Zingiberaceae) of Mount Wilhelm, Papua New Guinea (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 95-101
    Details
    Publication Date: 2024-06-06
    Description: Three species of Pleuranthodium were encountered and collected during a survey of gingers at Mount Wilhelm, Chimbu Province, Papua New Guinea. Based on new material, the only previously known Pleuranthodium from this area, P. piundaundense, is described in more detail highlighting new diagnostic characters and its known distribution range is expanded based on identification of older specimens at Edinburgh from two other provinces. Two species so far only known from Mount Wilhelm could not be identified after studying all protologues, types and material from several herbaria. These are here described as new species, P. corniculatum and P. sagittatum. A key with both floral and vegetative characters is provided to all three species. Pleuranthodium corniculatum is distinct in having apical appendages on the calyx, and P. sagittatum has a wrinkled calyx. All species are described and illustrated, and conservation assessments are made.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Chimbu ; Eastern Highlands ; Pleuranthodium corniculatum ; Pleuranthodium piundaundense ; Pleuranthodium sagittatum ; taxonomy ; Zingiberaceae
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    New species and a new record of Pterichis sect. Pterichis (Orchidaceae) from Bolivia (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 3, pp. 212-218
    Details
    Publication Date: 2024-06-06
    Description: Pterichis comprises about 40 species distributed from Costa Rica in the north to Bolivia in the south. The species grow as terrestrial plants usually in paramo and subparamo, but there are also reports of populations in high montane forest. In this paper the complete enumeration of the six Bolivian representatives of the orchid genus Pterichis sect. Pterichis is presented.A total of four new species are described and one new record, P. aragogiana, for the country is reported. An updated key to the species of the nominal section of Pterichis from Bolivia is presented.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Andes ; biodiversity ; Neotropics ; new record for Bolivia ; Pterichis aragogiana ; Pterichis fuentesii ; Pterichis lunatilabia ; Pterichis obcordatilabia ; Pterichis vasquezii
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    A systematic revision of the vulnerable mangrove genus Pelliciera (Tetrameristaceae) in equatorial America (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 107-120
    Details
    Publication Date: 2024-06-06
    Description: Pelliciera is a genus of mangrove trees with distinct showy flowers with five petals subtended by two large foliaceous bracts. The genus, thought to be monotypic, only containing P. rhizophorae, was classified recently in the small diverse family, the Tetrameristaceae. This distinctive genus occurs in a relatively restricted distribution in Central and northern South America in the Atlantic-East Pacific region. In this recent decade, two varietal forms have been reported across its range, of which one appears to be a colour morph referred to much earlier as P. rhizophorae var. benthamii. The taxonomic status of the earlier morph was, however, insufficient to warrant individual recognition at the time, so the genus remained monotypic with no varietal forms. The aim of this treatment has been to review the systematic history of the genus, to thoroughly re-assess available observations and to re-evaluate the current taxonomic status. In conclusion, the genus is recognised now as having two closely related species, described here as P. benthamii along with a redefined P. rhizophorae. Characters such as leafy bract colour, leaf dentition and petal shape used in their discrimination are provided, along with notes on the ecology, phenology, a diagnostic key, and a revised distribution map that displays the oddly overlapping occurrences.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Atlantic-East Pacific ; Central America ; conservation ; mangrove ; morphometrics ; nectar ; Pelliciera benthamii ; Pelliciera rhizophorae ; phenology ; pollen ; South America ; Tetrameristaceae
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    Taxonomic revision of Dehaasia (Lauraceae) in Sumatra (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 167-175
    Details
    Publication Date: 2024-06-06
    Description: A revision of Dehaasia (Lauraceae) in Sumatra is presented. Eight species are recognized, including two newly described species (D. bandaharense and D. pilosa). Akey to the eight species, descriptions and distribution maps of each species and illustrations of newly described species are provided. A neotype for D. incrassata is designated.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Dehaasia ; Lauraceae ; revision ; Sumatra ; taxonomy
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  • 59
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    Maesa brevipedicellata (Primulaceae), a new species from Papua New Guinea (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 83-85
    Details
    Publication Date: 2024-06-06
    Description: Maesa brevipedicellata, a new species of Maesa (Primulaceae-Maesoideae) from Papua New Guinea, is described and illustrated based on herbarium specimen observations. The collections of this species resemble M. rufovillosa and were previously determined as that species. Maesa brevipedicellata is unique with its selfsupporting habit, hispid hairs throughout and paniculate inflorescences with very short pedicels. This new species mainly differs from M. rufovillosa by the habit (tree/shrub in M. brevipedicellata vs climber in M. rufovillosa) and the inflorescence structure (panicles in M. brevipedicellata vs simple racemes in M. rufovillosa).
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Ericales ; Maesa ; Malesia ; Myrsinaceae ; new species ; Papuasia ; taxonomy
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  • 60
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    Hibiscus fabiana sp. nov. (Malvaceae) from the Guinea Highlands (West Africa) (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 69-74
    Details
    Publication Date: 2024-06-06
    Description: Hibiscus fabiana Cheek (sect. Furcaria, Malvaceae) is described from the Guinea Highlands of West Africa, and its taxonomic affinities and ecology are considered. Hibiscus fabiana has previously been confused with H. rostellatus but has red fleshy calyx ribs (vs not red and non-fleshy), the calyx surface is glabrous apart from 1-armed bristles (vs densely covered in minute white stellate hairs and bristles 2–5-armed), the leaves 3(–5)-lobed, bases truncate to rounded (vs 5-lobed, cordate). The conservation status of the new species is assessed using the IUCN 2012 standard as Vulnerable. In the context of the recently discovered extinction of the Guinean endemic Inversodicraea pygmaea G.Taylor (Podostemaceae), we discuss the 30 new species to science discovered in Guinea since 2005, all but one of which are also range-restricted and threatened, usually by development or habitat loss. We consider it urgent to avoid their extinction, ideally with in situ conservation using an Important PlantAreas approach.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Bowal ; conservation ; Furcaria ; Guinea Highlands ; Hibiscus ; Important Plant Areas ; Simandou
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    A new species of Eurystyles (Orchidaceae: Spiranthinae) from Costa Rica (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 65-68
    Details
    Publication Date: 2024-06-06
    Description: Eurystyles comprises about 23 species ranging from Mexico to northernArgentina. Six species are recognized in Mexico and Central America and three in Costa Rica. A new species, named E. uxoris, is here described and illustrated based on Costa Rican material. The species is similar to Eurystyles auriculata and E. standleyi, however, it differs by the smaller plants up to 3 cm tall, smaller leaves of less than 1.6 cm long, flowers with brown dorsal sepal and brown lip apex, petals callose or thickened at apex, and a pandurate lip. Information about distribution, habitat, ecology, etymology and phenology of the new species is provided. An updated key to the Costa Rican species of Eurystyles is presented.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Eurystyles auriculata ; Eurystyles cornu-bovis ; Eurystyles standleyi ; floristics ; neotropics ; taxonomy
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  • 62
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    Taxonomic notes on Trigonostemon (Euphorbiaceae) in the Philippines (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 12-24
    Details
    Publication Date: 2024-06-06
    Description: Descriptions of five Trigonostemon species in the Philippines (four endemic) are updated with taxonomic notes based on herbarium collections and field observations. A new species of Trigonostemon is described. All species treated here are illustrated with photos. The formerly uncertain species, T. stenophyllus, is now synonymized with T. filiformis. In addition to T. pentandrus, three more Trigonostemon species are reported to cohabit with ants. A new identification key and an updated identification list of Trigonostemon species in the Philippines are provided.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Euphorbiaceae ; Philippines ; revision ; taxonomy ; Trigonostemon
    Repository Name: National Museum of Natural History, Netherlands
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  • 63
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    The botanical exploration of Angola by Germans during the 19th and 20th centuries, with biographical sketches and notes on collections and herbaria (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 126-161
    Details
    Publication Date: 2024-06-06
    Description: A catalogue of 29 German individuals who were active in the botanical exploration of Angola during the 19th and 20th centuries is presented. One of these is likely of Swiss nationality but with significant links to German settlers in Angola. The catalogue includes information on the places of collecting activity, dates on which locations were visited, the whereabouts of preserved exsiccata, maps with itineraries, and biographical information on the collectors. Initial botanical exploration in Angola by Germans was linked to efforts to establish and expand Germany’s colonies in Africa. Later exploration followed after some Germans had settled in the country. However, Angola was never under German control. The most intense period of German collecting activity in this south-tropical African country took place from the early-1870s to 1900. Twenty-four Germans collected plant specimens in Angola for deposition in herbaria in continental Europe, mostly in Germany. Five other naturalists or explorers were active in Angola but collections have not been located under their names or were made by someone else. A further three collectors, who are sometimes cited as having collected material in Angola but did not do so, are also briefly discussed
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Angola ; botanical exploration ; German explorers ; plant collections
    Repository Name: National Museum of Natural History, Netherlands
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  • 64
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    On the morphological variation of Rafflesia cantleyi (Rafflesiaceae) on Pulau Tioman, Pahang, Peninsular Malaysia (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 75-82
    Details
    Publication Date: 2024-06-17
    Description: In Peninsular Malaysia, Rafflesia is represented by seven species of which R. kerrii (and R. su-meiae) stands out distinctly from the other five. The other five species, R. azlanii, R. cantleyi, R. parvimaculata, R. sharifahhapsahiae and R. tuanku-halimii, are collectively close enough to each other to be referred to as the R. cantleyi complex after its first-described species, R. cantleyi. Pulau Tioman has a population of R. cantleyi, which, because of its island location, is isolated from the mainland complex. This study was conducted to determine morphological variation in a selected location in Pulau Tioman. Twelve flowers were studied with respect to characteristics such as wart (blotch) pattern on perianth lobes, warts (dots) on upper surface of the diaphragm, shape of the aperture, shape of processes and types of ramenta. These are the characters that have been used to define species in the R. cantleyi complex. The variation in the local Tioman population was compared with the variation in the R. cantleyi complex on the mainland, which is about the same magnitude. This supports the idea that R. cantleyi is a single highly polymorphic species and that the species that have been described in the R. cantleyi complex should be reduced to varieties.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; morphology ; Pulau Tioman ; Rafflesia cantleyi complex ; variability
    Repository Name: National Museum of Natural History, Netherlands
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    In memoriam Willem F. Prud'homme van Reine (3 April 1941 – 21 March 2020) (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. i-ix
    Details
    Publication Date: 2024-06-17
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics
    Repository Name: National Museum of Natural History, Netherlands
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  • 66
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    Key to the families and genera of Malesian Euphorbiaceae in the wide sense (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 53-60
    Details
    Publication Date: 2024-06-15
    Description: Identification keys are provided to the different families in which the Euphorbiaceae are split after APG IV. Presently, Euphorbiaceae in the strict sense, Pandaceae, Peraceae, Phyllanthaceae, Picrodendraceae and Putranjivaceae are distinguished as distinct families. Within the families, keys to the different genera occurring in the Malesian area, native and introduced, are presented. The keys are to be tested and responses are very welcome.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Euphorbiaceae ; keys ; Pandaceae ; Peraceae ; Phyllanthaceae ; Picrodendraceae ; Putranjivaceae
    Repository Name: National Museum of Natural History, Netherlands
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  • 67
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    New species of Amorphophallus (Araceae) in the Philippines and an updated key (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 1-9
    Details
    Publication Date: 2024-06-16
    Description: The number of named Philippine species of the genus Amorphophallus (Araceae-Thomsonieae) amounts to 13 today. Three existing species names (not included in this count) cannot be attributed to presently recognized species for lack of their holotypes, which were all destroyed in WWII. Five new species are described here and an identification key to all species recognized from the Philippines is presented.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Amorphophallus ; Araceae ; identification key ; new species ; Philippines ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
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    Orchidantha anthracina (Lowiaceae), a new species from Vietnam (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 90-93
    Details
    Publication Date: 2024-06-13
    Description: Orchidantha anthracina (Lowiaceae), discovered at the south central coast of Vietnam, is described and illustrated, bringing the total number of species in the family to 26, of which four occur in Vietnam. The notes on distribution, habitat and etymology are given and a preliminary conservation assessment is provided. The species is compared with O. vietnamica, with which it shares flowers of similar size and colours, but from which it is readily distinguished by a narrow and strongly reflexed dorsal sepal and spreading lateral sepals, not supporting the labellum. Notes with additional comparisons to all species with a similar arrangement of lateral sepals are also provided.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Orchidantha grandiflora ; Orchidantha inouei ; Orchidantha vietnamica ; Phú Yên province ; south central coast of Vietnam ; vulnerable ; Zingiberales
    Repository Name: National Museum of Natural History, Netherlands
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    Three new combinations in Villaria (Octotropideae, Rubiaceae), an endemic genus from the Philippines (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 86-89
    Details
    Publication Date: 2024-06-13
    Description: Three new species combinations are made under Villaria for the Philippine endemics Hypobathrum coriaceum, H. multibracteatum and H. purpureum. Morphological features of these three Hypobathrum species revealed a closer resemblance with Villaria than with Hypobathrum, as the three Philippine endemics possess a unilocular ovary with parietal placentation; a character that is not found in any genera of Octotropideae except in Villaria. Lectotypes and a neotype are selected.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Hypobathrum ; Ixoroideae ; Octotropideae ; Philippine endemics ; Rubiaceae ; Villaria
    Repository Name: National Museum of Natural History, Netherlands
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    Impatiens marroninus, a new species of Impatiens (Balsaminaceae) from Sumatra, Indonesia (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 10-11
    Details
    Publication Date: 2024-06-09
    Description: Impatiens marroninus Utami (Balsaminaceae), collected from Sumatra, Indonesia, is described and illustrated as a new species. The species belongs to subg. Impatiens sect. Kathetophyllon. It is characterized by opposite or whorled leaves, yellow flowers with red maroon stripes in the upper part of the two lateral petals, dark green leaves and the lower sepal deeply navicular and constricted into a short curved spur. This combination of morphological characters was previously unknown. Detailed description, illustration, phenology, IUCN conservation assessment and ecology of the species are provided.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Balsaminaceae ; endemic ; Impatiens ; Indonesia ; new species ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
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    A new and unusual species of Dichaea (Orchidaceae: Zygopetalinae) from Costa Rica (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 61-64
    Details
    Publication Date: 2024-06-09
    Description: A new and florally unusual species of the genus Dichaea is described and illustrated from Costa Rica, where it is apparently endemic, and its relationships are discussed. Dichaea auriculata is compared with the group of species close to D. graminoides, from which it can be distinguished by the lip with a long isthmus, provided with two rounded auricles at the base, instead of the sessile lip typical of the group. It is also compared with another Costa Rican endemic in the same complex, D. gracillima, from which it can be distinguished by the autogamous, mostly cleistogamous, flowers, the 3-lobed lip with rounded basal lobes, the high keel along the lip isthmus, and the bifid ligule of the column. Notes on the habitat and the ecology of the new species are provided.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; autogamy ; Dichaeopsis ; Flora of Costa Rica ; new species ; plant diversity ; section Pseudodichaea
    Repository Name: National Museum of Natural History, Netherlands
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    A taxonomic revision of Trigonostemon (Euphorbiaceae) outside Malesia (2020)
    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 25-52
    Details
    Publication Date: 2024-06-14
    Description: The Trigonostemon species outside Malesia are taxonomically revised based on herbarium collections and fresh material. The research history in the concerning regions, i.e., the Indian subcontinent (including S India, Sri Lanka, Bangladesh and Myanmar), China, Thailand, Indochina, NE Australia and New Caledonia, is briefly summarised. A total of 32 species are accepted (including one doubtful species) and 17 names are newly treated as synonyms. Trigonostemon montanus is newly described for India. Regional identification keys, nomenclature, descriptions, geographic distributions and taxonomic notes are provided. Together with our previous work, the genus is now fully revised. A total of 59 species are accepted. A full identification list of all Trigonostemon collections seen is presented.
    Keywords: Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Euphorbiaceae ; identification ; morphological revision ; non-Malesian ; taxonomy ; Trigonostemon
    Repository Name: National Museum of Natural History, Netherlands
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