Cladonia


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Related to Cladonia: reindeer lichen, Cladonia rangiferina

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 ?
Strong fungal specificity and selectivity for algal symbionts in Florida scrub Cladonia lichens.
All Cladonia perforata habitats are subject to significant natural disturbance from high intensity fires or hurricanes.
Fish and Wildlife Service consider this reintroduction project an important element in the long term recovery of Cladonia perforata in northwest Florida.
The remnants of the original larger population of Cladonia perforata appear to be doing well 5 years after Hurricane Opal.
microphyllina, Cladonia cristatella, Cyphelium tigillare and Trapeliopsis flexuosa.
Thallus scale-like, of ascending squamules; fruiting bodies, if present, red, on simple to slightly branched podetia; podetia resembling pointed or blunt clubs CLADONIA 2.
The familial preferences are also reflected at the generic level, because the particularly diverse genera in the Northern Andes belong the families listed above: Anzia, Everniastrum, Hypotrachyna, Oropogon, parmotrema, and probably Usnea in the Parmeliaceae; Cladonia in the Cladoniaceae; Stereocaulon in the Stereocaulaceae; Lobaria and Sticta in the Lobariaceae; Heterodermia in the Physciaceae; and Leptogium in the Collemataceae.
Similar distribution patterns are found in the genus Cladonia, such as C.
applanate species of Hypotrachyna and Cladonia species of the C.
Key words: Cladonia, cytotoxicity, Evernia, lichens, Parmelia, Platismatia, Ramalina, Usnea
Platismatia glauca and Cladonia convoluta were collected respectively in Limousin (near Meymac) and in Quercy (near Cressensac), France.