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Niebla turgida
''Niebla turgida '' is a fruticose lichen that grows on rocks in the fog zone along the Pacific Coast of Baja California in the Northern Vizcaíno Desert〔Spjut, R. W. 1996. ''Niebla'' and ''Vermilacinia'' (Ramalinaceae) from California and Baja California. Sida Bot. Misc. 14〕 The epithet, '' turgida '' is in reference to the swollen branches of the thallus.
==Distinguishing Features==
''Niebla turgida '' is distinguished by a yellow green bushy thallus to 6 cm high and 15 cm across, divided into tubular swollen branches; the primary branches, which are often round in cross section near base, are loosely connected to a yellowish pigmented holdfast, blackened slightly above base, curve upwards or spread widely and become entangled, mostly narrow in length and prismatic to partially flattened above in cross section, variously fringed along the branch margins, often long tapered to the tip. The cortex is relatively thin, 35–50 µm thick, with prominent network of raised vein-like ridges on the surface, the longitudinal ridges generally not defining the branch margins, interconnected by diagonal ridges that fork and connect to other ridges; black dot-like pycnidia conspicuous along the cortical ridges; apothecia often in small clusters on lobes of terminal short spur-like branches; the key lichen substance is divaricatic acid, with triterpenes.〔 Similar species are ''Niebla podetiaforma'', distinguished by the smaller thallus with less prominent cortical ridges, and ''Niebla juncosa'' that differs by longitudinal cortical ridges that define the branch margins.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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