Subsquamulose lichen, on bark of incense cedar, being overgrown by Hypocenomyce scalaris.
THALLUS: medium to dark olive green, composed of tiny corticate lumps, forming continuous crust, lumps even growing up on top of edges of apothecia, K-
ALGAE: green
APOTHECIA: dark reddish brown, convex, semi-immersed, apparently immarginate, epihymenium brown, hymenium clear, K/I+ blue, hypothecium clear, all K- and POL-, asci K/I+ walls and central canal amid K/I- or weakly blue thollus (Porpidia-type)
SPORE: 8 per ascus, simple, clear, ellip, possibly textured, (13)14+/-0.9(15) x (5.3)6.4+/-0.9(7.8) µm (Q=(1.9)2.3+/-0.3(2.8)) (N=6)

This is a very odd Lecidea, looks more like a Biatora or something instead.


At 10×.
At 30×.
Apothecial section, in water, at 100×.
Spores, in water, at 1000×.
Ascus, in K/I, at 1000×. Shows Porpidia-type ascus tip. Sort of.

Proposed Names

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Used references: Nash’s Sonoran Flora

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