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Niebla dilatata : ウィキペディア英語版 | Niebla dilatata
''Niebla dilatata'' is a fruticose lichen that grows on rocks on Guadalupe Island and the foggy coast of the Baja California peninsula. The epithet, '' dilatata'', is in reference to the broadly expanded (dilated) lobes of the thallus.〔Spjut, R. W. 1996. ''Niebla'' and ''Vermilacinia'' (Ramalinaceae) from California and Baja California. Sida Bot. Misc. 14〕 ==Distinguishing Features==
''Niebla dilatata'' is recognized by the thallus divided into flattened twisted branches that broadly expand above the base, , the branches thickened and wavy (undulate) along margins, often with abundant pycnidia and/or apothecia, and by the thallus containing the lichen substance divaricatic acid. The cortex is 75–125 µm thick, in contrast to that of ''Niebla caespitosa'', (25-)45–75 µm thick, a similar species that further differs by the jagged thallus margins. Pigmentation is weak near base of thallus.〔
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