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Niebla ramosissima : ウィキペディア英語版 | Niebla ramosissima
''Niebla ramosissima'' is a rare fruticose lichen that grows on soil on San Nicolas Island in the Channel Islands of California.〔Spjut, R. W. 1996. ''Niebla'' and ''Vermilacinia'' (Ramalinaceae) from California and Baja California. Sida Bot. Misc. 14〕 The epithet, ''ramosissima'', is in reference to the very much branched thallus. ==Distinguishing Features==
''Niebla ramosissima'' is distinguished by a mat-like, flaccid thallus, very much divided into numerous tangled narrow sublinear-prismatic branches〔Linear: having parallel margins 10 or more times longer than wide. Prismatic: shaped like a prism in cross section of branches〕 to 16 cm across, the individual branches only 0.5–1.0 mm in diameter, and by containing divaricatic acid, with triterepenes.〔 ''Niebla juncosa'', a species with the same chemistry and similarly shaped branches, which occurs on the Baja California peninsula, differs by its turgid thallus with larger branches, 2–5 mm in diameter, and further differs in their spreading to erect habit and in their elliptical shape in cross section.〔
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