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Niebla arenaria
''Niebla arenaria'' is a fruticose lichen that grows along the Pacific Coast of North America in the fog regions of the northern peninsula of Baja California from near Colonet south to Morro Santo Domingo. The epithet, ''arenaria'', is in regard to the species growing on sand.〔Spjut, R. W. 1996. ''Niebla'' and ''Vermilacinia'' (Ramalinaceae) from California and Baja California. Sida Bot. Misc. 14〕
==Distinguishing Features==
''Niebla arenaria'' is recognized by a hemispherical thallus similar to the reindeer lichen ''Cladonia rangiferina'', loosely attached to soil without a holdfast, intricately divided into narrow tubular prismatic branches shortly bifurcate near branch tips, the tips usually with black dot-like pycnidia, and by containing the lichen substance salazinic acid. It sometime forms pure colonies along sandy shores of bays and peninsulas, possibly as a result of the black-tipped branchlets breaking off and reproducing. Similar species are ''Niebla brachyura'', distinguished by containing the lichen substance hypoprotocetraric acid, ''Niebla pulchribarbara'', distinguished by containing protocetraric acid, and ''Niebla limicola'', that differs by the broad flattened curled (crispate) branches near base from which short bifurcate acicular branchlets develop.〔
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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