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  • Naturalis Biodiversity Center  (112)
  • 2020-2024  (112)
  • 1
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    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 3, pp. 224-232
    Publikationsdatum: 2024-01-12
    Beschreibung: Cystoliths are large outgrowths of cell wall material and calcium carbonate with a silicon-containing stalk \nfound in the leaves, stems and roots of only a handful of plant families. Each cystolith is contained within a cell \ncalled a lithocyst. In leaves, lithocysts may be found in the mesophyll or the epidermis. Astudy by Koch et al. (2009) \nreported unique, indented features on the surface of superamphiphilic Ruellia devosiana (Acanthaceae) leaves \nwhich the authors named \xe2\x80\x98channel cells\xe2\x80\x99. We report herein that such \xe2\x80\x98channel cells\xe2\x80\x99 in the Acanthaceae are actually lithocysts containing fully formed cystoliths in which only a portion of the lithocyst is exposed at the epidermis, \nforming a leaf epidermal impression. Intact leaves and isolated cystoliths from 28 Acanthaceae species (five in the \nnon-cystolith clade and 23 in the cystolith clade) were examined using light and scanning electron microscopy and \nX-ray microanalysis. All 23 members of the cystolith clade examined contained cystoliths within lithocysts, but not \nall showed leaf epidermal impressions. In four species, the lithocysts were in the leaf mesophyll, did not contact \nthe leaf surface, and did not participate in leaf epidermal impression formation. The remaining 19 species had \nlithocysts in the epidermis and possessed leaf epidermal impressions of differing sizes, depths and morphologies
    Schlagwort(e): Plant Science ; Ecology ; Evolution ; Behavior and Systematics
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 3, pp. 212-218
    Publikationsdatum: 2024-01-12
    Beschreibung: Pterichis comprises about 40 species distributed from Costa Rica in the north to Bolivia in the south. The \nspecies grow as terrestrial plants usually in paramo and subparamo, but there are also reports of populations in \nhigh montane forest. In this paper the complete enumeration of the six Bolivian representatives of the orchid genus \nPterichis sect. Pterichis is presented.A total of four new species are described and one new record, P. aragogiana, for \nthe country is reported. An updated key to the species of the nominal section of Pterichis from Bolivia is presented.
    Schlagwort(e): Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Andes ; biodiversity ; Neotropics ; new record for Bolivia ; Pterichis aragogiana ; Pterichis fuentesii ; Pterichis lunatilabia ; Pterichis obcordatilabia ; Pterichis vasquezii
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 102-103
    Publikationsdatum: 2024-01-12
    Beschreibung: 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.
    Schlagwort(e): Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Auriculifoliae ; Freycinetia ; Luzon ; Pandanaceae ; Philippines ; Quezon
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
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    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 107-120
    Publikationsdatum: 2024-01-12
    Beschreibung: Pelliciera is a genus of mangrove trees with distinct showy flowers with five petals subtended by two \nlarge foliaceous bracts. The genus, thought to be monotypic, only containing P. rhizophorae, was classified recently \nin the small diverse family, the Tetrameristaceae. This distinctive genus occurs in a relatively restricted distribution \nin Central and northern South America in the Atlantic-East Pacific region. In this recent decade, two varietal forms \nhave 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 \nrecognition at the time, so the genus remained monotypic with no varietal forms. The aim of this treatment has been \nto review the systematic history of the genus, to thoroughly re-assess available observations and to re-evaluate \nthe current taxonomic status. In conclusion, the genus is recognised now as having two closely related species, \ndescribed here as P. benthamii along with a redefined P. rhizophorae. Characters such as leafy bract colour, leaf \ndentition and petal shape used in their discrimination are provided, along with notes on the ecology, phenology, a \ndiagnostic key, and a revised distribution map that displays the oddly overlapping occurrences.
    Schlagwort(e): 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
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
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    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 121-125
    Publikationsdatum: 2024-01-12
    Beschreibung: Peliosanthes macrophylla var. assamensis, a new variety from Behali Reserve Forest in Assam, Northeast \nIndia, is described with accompanying photos and relevant taxonomic data. It differs from var. macrophylla from \nArunachal Pradesh and Sikkim, Northeast India, mainly by the staminal corona internally protruding near the middle \n(vs internally upright corona without a particular inward protrusion), shorter anthers somewhat divergent distally \n(vs nearly upright anthers), and longer, papillulate pistils exceeding the anthers (vs glabrous pistils not exceeding the \nanthers).
    Schlagwort(e): Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Asparagaceae ; Eastern Himalayas ; floral structure ; new variety ; Peliosanthes macrophylla ; taxonomy
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
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    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. 95-101
    Publikationsdatum: 2024-01-12
    Beschreibung: Three species of Pleuranthodium were encountered and collected during a survey of gingers at Mount \nWilhelm, Chimbu Province, Papua New Guinea. Based on new material, the only previously known Pleuranthodium \nfrom this area, P. piundaundense, is described in more detail highlighting new diagnostic characters and its known \ndistribution range is expanded based on identification of older specimens at Edinburgh from two other provinces. \nTwo species so far only known from Mount Wilhelm could not be identified after studying all protologues, types and \nmaterial from several herbaria. These are here described as new species, P. corniculatum and P. sagittatum. A key \nwith both floral and vegetative characters is provided to all three species. Pleuranthodium corniculatum is distinct \nin having apical appendages on the calyx, and P. sagittatum has a wrinkled calyx. All species are described and \nillustrated, and conservation assessments are made.
    Schlagwort(e): Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Chimbu ; Eastern Highlands ; Pleuranthodium corniculatum ; Pleuranthodium piundaundense ; Pleuranthodium sagittatum ; taxonomy ; Zingiberaceae
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
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    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 2, pp. i-ix
    Publikationsdatum: 2024-01-12
    Schlagwort(e): Plant Science ; Ecology ; Evolution ; Behavior and Systematics
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
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    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 86-89
    Publikationsdatum: 2024-01-12
    Beschreibung: Three new species combinations are made under Villaria for the Philippine endemics Hypobathrum \ncoriaceum, H. multibracteatum and H. purpureum. Morphological features of these three Hypobathrum species \nrevealed a closer resemblance with Villaria than with Hypobathrum, as the three Philippine endemics possess a \nunilocular ovary with parietal placentation; a character that is not found in any genera of Octotropideae except in \nVillaria. Lectotypes and a neotype are selected.
    Schlagwort(e): Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Hypobathrum ; Ixoroideae ; Octotropideae ; Philippine endemics ; Rubiaceae ; Villaria
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
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    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 69-74
    Publikationsdatum: 2024-01-12
    Beschreibung: Hibiscus fabiana Cheek (sect. Furcaria, Malvaceae) is described from the Guinea Highlands of West \nAfrica, and its taxonomic affinities and ecology are considered. Hibiscus fabiana has previously been confused \nwith H. rostellatus but has red fleshy calyx ribs (vs not red and non-fleshy), the calyx surface is glabrous apart from \n1-armed bristles (vs densely covered in minute white stellate hairs and bristles 2\xe2\x80\x935-armed), the leaves 3(\xe2\x80\x935)-lobed, \nbases truncate to rounded (vs 5-lobed, cordate). The conservation status of the new species is assessed using the \nIUCN 2012 standard as Vulnerable. In the context of the recently discovered extinction of the Guinean endemic \nInversodicraea pygmaea G.Taylor (Podostemaceae), we discuss the 30 new species to science discovered in Guinea \nsince 2005, all but one of which are also range-restricted and threatened, usually by development or habitat loss. We \nconsider it urgent to avoid their extinction, ideally with in situ conservation using an Important PlantAreas approach.
    Schlagwort(e): Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; Bowal ; conservation ; Furcaria ; Guinea Highlands ; Hibiscus ; Important Plant Areas ; Simandou
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
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    Naturalis Biodiversity Center
    In:  Blumea: Biodiversity, Evolution and Biogeography of Plants vol. 65 no. 1, pp. 75-82
    Publikationsdatum: 2024-01-12
    Beschreibung: In Peninsular Malaysia, Rafflesia is represented by seven species of which R. kerrii (and R. su-meiae) \nstands 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 \ncomplex after its first-described species, R. cantleyi. Pulau Tioman has a population of R. cantleyi, which, because \nof its island location, is isolated from the mainland complex. This study was conducted to determine morphological \nvariation in a selected location in Pulau Tioman. Twelve flowers were studied with respect to characteristics such \nas wart (blotch) pattern on perianth lobes, warts (dots) on upper surface of the diaphragm, shape of the aperture, \nshape of processes and types of ramenta. These are the characters that have been used to define species in the \nR. cantleyi complex. The variation in the local Tioman population was compared with the variation in the R. cantleyi \ncomplex on the mainland, which is about the same magnitude. This supports the idea that R. cantleyi is a single \nhighly polymorphic species and that the species that have been described in the R. cantleyi complex should be \nreduced to varieties.
    Schlagwort(e): Plant Science ; Ecology ; Evolution ; Behavior and Systematics ; morphology ; Pulau Tioman ; Rafflesia cantleyi complex ; variability
    Repository-Name: National Museum of Natural History, Netherlands
    Materialart: info:eu-repo/semantics/article
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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