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  • 1
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    New records of terricolous microlichens from southeast Greenland (1983)
    In:  Miscellaneous publications of the University of Utrecht Herbarium (1572-6592) vol.1 (1983) nr.1 p.49
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    Publication Date: 2015-05-08
    Description: Twelve species of terricolous microlichens from the Angmagssalik District, Southeast Greenland, are reported: Caloplaca friesii, C. livida, Lecanora boligera, Lecidea oligotropha and Leciophysma arctophila, which are new to the lichen flora of Greenland, Rinodina conradi, which is new to the eastcoast, and Baeomyces roseus, B. rufus, Buellia geophila, B. punctata, Caloplaca tornoensis and Mycoblastus tornoensis, new to Southeast Greenland. In a discussion of the greenlandic distribution, unpublished records from the herbarium of Copenhagen (C) are incorporated. Notes on the habitats are given and the pertinent phytosociological units indicated. Some morphological and anatomical characters are commented upon briefly.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 2
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    Studies on Colombian Cryptogams. X. The genus Everniastrum Hale and related taxa (Lichenes) (1980)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.508 (1980) nr.1 p.333
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    Publication Date: 2015-05-08
    Description: The Colombian representatives of the lichen family Parmeliaceae with linear lobes and marginal cilia have been revised. A key is given and morphology, chemistry and distribution are treated of 12 species in three genera: Cetrariastrum Sipm. gen. nov, with C. andense (Kärnef.) Sipm. comb. nov., C. dubitans Sipm. spec. nov. and C. equadoriense (Sant.) Sipm. comb. nov., Everniastrum with E. catawbiense (Degel.) Hale, E. cirrhatum (Fr.) Hale, E. columbiense (Zahlbr.) Hale, E. fragile Sipm. spec. nov., E. planum Sipm. spec. nov., E. sorocheilum (Vain.) Hale and E. vexans (Zahlbr.) Hale, and Parmelina cleefii Sipm. spec. nov. and P. swinscowii (Hale) Hale.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 3
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    Studies on Colombian cryptogams. V. Taxonomy, distribution and ecology of macrolichens of the Colombian Paramos: 1. Cladonia subgenus Cladina (1979)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.480 (1979) nr.1 p.223
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    Publication Date: 2015-05-08
    Description: Morphology, chemistry, distribution and ecology of 6 species of Cladonia subgenus Cladina (Lichenes) from the Colombian paramos are described: C. arcuata Ahti, C. boliviano Ahti, C. confusa Sant., C. polia Sant., C. rangiferina (L.) Wigg. var. abbayesii Ahti, and C. colombiana spec. Nov. C. bicolor (Mull. Arg.) Ahti is reduced to synonymy under C. polia.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 4
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    A field impression of the lichen and bryophyte zonation on Mount Kinabalu (1990)
    In:  Flora Malesiana Bulletin (0071-5778) vol.10 (1990) nr.3 p.241
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    Publication Date: 2015-04-20
    Description: Vegetation descriptions of Mount Kinabalu (4101 m), the highest mountain in tropical Asia between the Himalayas and New Guinea, have resulted in different, conflicting zonations. Some stress more on floristic affinities, others more on physiognomy. A lowland zone reaching to about 1000 m is usually distinguished. The next 2000 m comprising the mountain forests are treated in many different ways. A summit zone (above 3800 m) is recognized rather often (cf. Stapf, 1895; Gibbs, 1914; Meijer, 1963; Van Steenis, 1964; Menzel, 1988). In our opinion the most convincing is the zonation proposed by Van Steenis, who stressed the floristic composition. This comprises three zones: 1. the foothill zone below 1000 m; 2. the montane zone from 1000 to 2500 m; 3. the subalpine zone above 2500 m. Since this zonation was based on phanerogams it was tempting to investigate whether it is reflected in the bryophytes and lichens.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 5
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    Het geslacht Stereocaulon (Lichenes) in Nederland (1978)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.472 (1978) nr.1 p.37
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    Publication Date: 2015-05-08
    Description: Eight Stereocaulon (Lichenes) species have been found in the Netherlands. Of these S. paschale (L.) Fr. and S. tomentosum Fr. have been observed only in the last century, in heather and woodland on sand. S. condensatum Hoffm. is found on old drifted sands in the interior, where it occurs now and is not rare locally. S. saxatile occurs on the same sites but is not common. The other, epilitic species were discovered in this century. S. dactylophyllum Flk. and S. evolutum Graewe grow on a few erratic boulders. S. pileatum Ach. and S. vesuvianum Pers. have been found several times recently, on artificial substrates. S. condensatum of the sands shows a somewhat aberrant form; the primary phyllocladia are usually less flattened, and often develop into branched structures of several mm length, see fig. 2, a. A key, brief descriptions and data on chemistry of the indigenous species are given.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 6
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    A new chemical strain of Cladonia furcata (Huds.) Schrad. (Lichenes) (1982)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.528 (1982) nr.1 p.491
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    Publication Date: 2015-05-08
    Description: The well-known and widespread lichen species Cladonia furcata (Huds.) Schrad. is usually very constant in its chemistry: fumarprotocetraric acid is its main secondary metabolite, sometimes accompanied by atranorin. Recently a new chemical strain, characterised by the presence of psoromic acid instead of fumarprotocetraric acid or atranorin, was found in Portugal by the first two authors during phytosociological investigations of heath vegetations. The plants are preserved in the herbarium of the Institute of Systematic Botany, University of Utrecht (U), leg. Barendregt & v.d. Dries nr. 1-2 (U). Morphologically the plants with psoromic acid represent the slender form of C. furcata. which is the predominant form in lowland western Europe (fig. 1). The podetia are c. 3 cm long and up to 0.8 mm wide, branching regularly but not very densily dichotomously, and olivaceous green to brownish in colour. Their habit varies from creeping and loosely tufted to erect and densily tufted. Squamules are present only occasionally, on the lower parts of the podetia, and are roundish with a crenulated margin, up to c. 1.2 mm wide.
    Repository Name: National Museum of Natural History, Netherlands
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  • 7
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    The Cladonia pyxidata-fimbriata complex in the Netherlands, with description of a new variety (1973)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.399 (1973) nr.1 p.490
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    Publication Date: 2015-05-08
    Description: A morphological, chemical, and ecological analysis was performed on a large number of collections of Cladonia pyxidata and related taxa from the Netherlands. The following species are recognized: Cladonia fimbriata. Cl. conistea, Cl. conista. Cl. pyxidata. Cl. chlorophaea. Cl. cryplochlorophaea. Cl. merochhrophaea and Cl. grayi. A strain with novochlorophaeic acid is described as a new variety: Cl. merochlrophaea Asah. var. novochlorophaea (colour reactions: P -〉 orange-red or often negative; K -〉 negative; C -〉 negative or yellow; KC -〉 negative). In morphological and ecological respect a close relationship has been found between 1. Cladonia conistea and Cl. conista, and 2. Cladonia cryplochlorophaea and Cl. merochlorophaea. For comparison also some material from other European countries has been studied.
    Repository Name: National Museum of Natural History, Netherlands
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  • 8
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    Tropical urban lichens: observations from Singapore (2009)
    In:  Blumea - Biodiversity, Evolution and Biogeography of Plants (0006-5196) vol.54 (2009) nr.1/3 p.297
    Details
    Publication Date: 2015-03-06
    Description: The known lichen diversity of Singapore, 296 species, is comparable with temperate lowland areas, but the taxa involved are different, even at high taxonomic levels: the commonest orders are Arthoniales and Graphidales instead of Lecanorales. Epiphytic species dominate, while saxicolous and terrestrial species are rare. Comparison with pre-2000 records and non-urbanized areas suggests a decrease in forest lichens, cyanophilous macrolichens, and the nitrophilous family Physciaceae.
    Keywords: Biodiversity conservation ; lichenized mycota ; lichens ; Singapore ; urbanisation effects
    Repository Name: National Museum of Natural History, Netherlands
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  • 9
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    Taxonomy and World Distribution of Campylopus introflexus and C. pilifer (= C. polytrichoides): a New Synthesis (1978)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.466 (1978) nr.1 p.114
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    Publication Date: 2015-05-08
    Description: Campylopus introflexus (Hedw.) Brid. sensu lato comprises two widespread, closely related species: tropical and warm-temperate C. pilifer Brid. (= C. polytrichoides DeNot.) and temperate southern hemispheric C. introflexus (Hedw.) Brid., which was recently introduced in Europe. Main differences are in the height of the dorsal lamellae of the leaves, in spore size and in seta length. In C. pilifer lamellae are more pronounced in tropical mountains than in lowland areas. An extreme form with lamellae up to seven cells high is C. pilifer var. lamellatus (Mont.) comb. nov. from Bolivia.
    Repository Name: National Museum of Natural History, Netherlands
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  • 10
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    A monograph of the lichen family Megalosporaceae (1983)
    In:  Mededelingen van het Botanisch Museum en Herbarium van de Rijksuniversiteit te Utrecht (2352-5754) vol.482 (1983) nr.1 p.3
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    Publication Date: 2015-05-08
    Description: The taxonomy of the family Megaloeporaceae (Lecanorales, lichenised ascomycetes) has been revised basing on an examination of morphology, anatomy and chemistry of thallus and apothecia, and of apothecium ontogeny. The Megalosporaceae are mainly characterised by features of the apothecium ontogeny, by thallus- and apothecium-chemistry, and by a range of spore types. Three genera have been distinguished within this family, Austroblastenia (gen. nov.) with two species, occuring in Australia and New Zealand, Megaloblastenia (gen. nov.) with two species, occuring in Australia, New Zealand and southern South America, and Megalospora, with twenty-five species, concentrated in Australasia, but with representatives throughout the tropical and warmtemperate zones of the world. The delimitation of these genera is based on spore structures. The species delimitations are mainly based on features of the epithecium pigmentation and granulation, spore structure and size, hymenium size and thallus chemistry. Species are defined as entities characterised by at least two independent differentiating characters. Entities with only a single such character (e.g. "chemospecies" or "secondary species") have been treated below specific rank or left unnamed. The delimitation of the genus Megalospora has been changed. Several species had to be transferred to other genera, notably Catinaria, while on the other hand several Bombyliospora species, including its type, as well as a few species with muriform spores, have been included in Megalospora. In all 11 species and 3 subspecies are newly described. Nearly all members of the family inhabit humid, cool forests, often cloud forest in tropical mountains. Basing on a cladistic analysis the ancestor of the family is supposed to have had bicellular spores with thick septa, which supports a relation with the Buelliinae. Most of the evolution of the family is supposed to have taken place on Gondwana-land, from which main migration routes have brought species into tropical Africa and America, into tropical and eastern Asia, and into southern South America.
    Repository Name: National Museum of Natural History, Netherlands
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