Cladonia


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Cladonia

 

a genus of lichens with a binary thallus. The prothallus is horizontal and grows in the form of nodules or scales, which sometimes later atrophy; the secondary thallus, which grows out of the prothallus, is vertical, and consists of subulate, hornlike, cup-shaped, or bushy formations called podetia. The apothecia, found at the tips of the branches or on the apexes of the podetia, are rounded or hemispheric and red, brown, or, more rarely, yellow in color. There are about 300 species of Cladonia, growing in forests (chiefly pine), tundras, and swamps. In the North several species of Cladonia are used as forage for reindeer. Some species contain usnic acid and have medicinal value. In the USSR there are about 100 species.

References in periodicals archive ?
A contribution to the lichen genus Cladonia in Greenland and new records from other northern regions.
Xanthoparmelia taractica, Rimelia reticulata, Flavoparmelia caperata, Flavopunctelia faventior, Cladia aggregata, Cladina arcuata Cladonia andesita Usnea bogotensis), o plantas postradas (pleurocarpicas) o erectas (acrocarpicas) con pelos canescentes que difractan la luz (v.
Cladonia diversa Asperges--10: ARB (MACB 101432), Sue.
Cladonia glauca Florke--H: Burgaz & Ahti (2009); J: Aragon et al.
Key words: Cladonia, cytotoxicity, Evernia, lichens, Parmelia, Platismatia, Ramalina, Usnea
rangiformis is the most common Cladonia species in the Iberian Peninsula (Burgaz & Ahti 2009) as well as in the study area.
Of these, two were dominated by tussock cottongrass, two by the moss Hylocomium splendens, and one by the lichen Cladonia furcata, which limited the available habitat for test bryophyte species on these hummock tops.
Effects of several microclimatic factors and nutrients on net carbon dioxide exchange in Cladonia alpestris (L.
Cladonia verticillata has small squamules with white lower surface, while C.
and Cladonia uncialis), while the other half were located on clear-cut areas, swamps and mires, deciduous forests, mixed forests, spruce forests, bare mountaintops, and some marginal classes (sand and fields).
As a result of some field surveys mainly in the south of the territory several species of the genus Cladonia were collected.
There he purchased a large quantity of reindeer moss (actually lichen, mainly Cladonia spp.