Results 121 to 130 of about 391 (154)
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The Limitations of Ancestral State Reconstruction and the Evolution of the Ascus in the Lecanorales (Lichenized Ascomycota) [PDF]
Systematic Biology, 2008 Ancestral state reconstructions of morphological or ecological traits on molecular phylogenies are becoming increasingly frequent. They rely on constancy of character state change rates over trees, a correlation between neutral genetic change and phenotypic change, as well as on adequate likelihood models and (for Bayesian methods) prior distributions.
Heidi Lie Andersen +2 more
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The Distribution of Selected Diagnostic Characters in the Lecanorales
The Lichenologist, 1998AbstractTraditional classification concepts in lichenology are often, but not always, supported by molecular results. Molecular data should be compared and correlated with micro-morphological and ultrastructural information before systematic rearrangements are undertaken.
Gerhard Rambold, Gregor Hagedorn
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Typification of two Stereocaulon names (Lecanorales, Ascomycota)
Phytotaxa, 2014The nomenclature, bibliographic citations and typifications of the names Stereocaulon botryosum and S. condensatum are discussed. A neotype is designated for S. condensatum and the lectotypification of S. botryosum is clarified. In addition, the morphological and chemical characteristics of both species and information on exsiccates examined are ...
Oset, Magdalena, Kukwa, Martin
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Usnea flammea (Lecanorales) new for North America
The Bryologist, 2007Usnea flammea is reported as new to North America, based on four specimens from coastal Maine.
Philippe Clerc, Philip F. May
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Three Squamulose Species of Rimularia (Lecanorales)
The Bryologist, 2002Three species are placed in the lichen genus Rimularia Nyl.: R. michoacanensis (B. de Lesd.) comb. nov., R. paradoxa Timdal & W. A. Weber sp. nov., and R. subconcava (H. Magn.) comb. nov. The species differ from the previously recognized species of the genus in having squamulose thalli and filiform pycnoconidia.
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Chemosyndromes in the lichen genus Teloschistes (Teloschistaceae, Lecanorales)
Mycological Progress, 2002The secondary metabolites of 150 specimens belonging to 29 species of Teloschistes were analysed with HPLC. Seven anthraquinones were detected of which parietin dominated with minor proportions of emodin, teloschistin, fallacinal and parietinic acid. The depsidones vicanicin, caloploicin, and isofulgidin occurred together with some compounds of unknown
Søchting, Ulrik, Frödén, P.
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Problems in Lecanorales Systematics
1994A further attempt to circumscribe the order Lecanorales is made. So far the only distinguishing characters for lecanoralean fungi are connected with the ascus-type, the peculiarities of which are pointed out. Some other features which might influence details in ascus structure are discussed as well as some problems of character selection and their ...
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Phylogeny of bipolar Cladonia arbuscula and Cladonia mitis (Lecanorales, Euascomycetes)
Molecular Phylogenetics and Evolution, 2003Phylogenetic relationships and levels of geographic differentiation of two closely related bipolar taxa, Cladonia arbuscula and Cladonia mitis, were cladistically examined with ITS regions, SSU rDNA introns, partial beta-tubulin, and partial glyceraldehyde 3-phosphate dehydrogenase (GAPDH) genes. In the combined analysis of the four genes, C. arbuscula
Leena, Myllys +3 more
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The application and citation of the generic nameParmeliopsis (Lecanorales, Parmeliaceae)
Plant Systematics and Evolution, 1985The nomenclatural history of the generic nameParmeliopsis is reviewed. Its correct citation is found to beParmeliopsis (Nyl. exStizenb.)Nyl., dating from 1866, not 1869 as commonly cited, withP. placorodia (Ach.)Nyl. as holotype species. There is consequently no nomenclatural problem to the adoption ofForaminellaFricke Meyer, typified byF.
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