Observation 12950: Hypocenomyce sierrae

Squamulose lichen, on Calocedrus bark, with Hypocenomyces sierrae.
THALLUS: light gray, scales scalloped, around 0.5 mm wide, somewhat raised showing soredia, coarsely sorediate below tips, K+ deep yellow, KC-
ALGAE: algal layer thick, POL+ white granules/crystals abundant throughout
APOTHECIA: black, lecideine; rim prominant, smooth, black, shiny; disc flat, black, epruinose, to 1 mm wide; epihymenium dark brown; hymenium clear; hypothecium dark brown; POL-, couldn’t find any asci

Less common but similar to Hypocenomyce scalaris: smaller, lighter, grayer squamules, with different chemistry: K+ deep yellow (thamnolic acid?) instead of C+ red (gyrophoric acid?).

Proposed Names

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Used references: Nash’s Sonoran Flora

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Created: 2008-10-20 00:26:19 MDT (-0600)
Last modified: 2008-10-20 00:26:19 MDT (-0600)
Viewed: 69 times, last viewed: 2017-06-05 02:55:50 MDT (-0600)