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Chapsa Alborosella
''Chapsa'' is a genus of lichens in the family Graphidaceae. These lichens form thin, grey-whitish to pale olive crustose lichen, crusts on tree bark and are characterized by fruiting bodies that start as slits but expand into round to angular discs level with the surface, each bordered by a pale rim. The genus has a pantropical to warm-temperate distribution, growing on shaded bark in humid lowland or foothill rainforests, with over 60 species that often serve as bioindicator, indicators of disturbance (ecology), undisturbed forest habitats. Taxonomy The genus was circumscription (taxonomy), circumscribed by the Italian lichenologist Abramo Bartolommeo Massalongo in 1860. The genus was resurrected by Frisch and colleagues in 2006 to include species earlier classified in ''Chroodiscus'', ''Myriotrema'', ''Ocellularia'', and ''Thelotrema''. Description ''Chapsa'' forms a thin, grey-whitish to pale olive crust (thallus) lacking a true . Its ascomata are : they start as slits b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hymenium
The hymenium is the tissue layer on the hymenophore of a fungal fruiting body where the cells develop into basidia or asci, which produce spores. In some species all of the cells of the hymenium develop into basidia or asci, while in others some cells develop into sterile cells called cystidia ( basidiomycetes) or paraphyses ( ascomycetes). Cystidia are often important for microscopic identification. The subhymenium consists of the supportive hyphae from which the cells of the hymenium grow, beneath which is the hymenophoral trama, the hyphae that make up the mass of the hymenophore. The position of the hymenium is traditionally the first characteristic used in the classification and identification of mushrooms. Below are some examples of the diverse types which exist among the macroscopic Basidiomycota and Ascomycota. * In agarics, the hymenium is on the vertical faces of the gills. * In boletes and polypores, it is in a spongy mass of downward-pointing tubes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chapsa Alletii
''Chapsa'' is a genus of lichen A lichen ( , ) is a hybrid colony (biology), colony of algae or cyanobacteria living symbiotically among hypha, filaments of multiple fungus species, along with yeasts and bacteria embedded in the cortex or "skin", in a mutualism (biology), m ...s in the family Graphidaceae. These lichens form thin, grey-whitish to pale olive crustose lichen, crusts on tree bark and are characterized by fruiting bodies that start as slits but expand into round to angular discs level with the surface, each bordered by a pale rim. The genus has a pantropical to warm-temperate distribution, growing on shaded bark in humid lowland or foothill rainforests, with over 60 species that often serve as bioindicator, indicators of disturbance (ecology), undisturbed forest habitats. Taxonomy The genus was circumscription (taxonomy), circumscribed by the Italian lichenologist Abramo Bartolommeo Massalongo in 1860. The genus was resurrected by Frisch and colleagues in 20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |