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Anaptychia ulotrichoides (Vainio) Vainio
Family: Physciaceae
Anaptychia ulotrichoides image
Theodore L. Esslinger  
Thallus: foliose, up to 2 cm in diam., irregular to somewhat orbicular; lobes: mostly ± linear and elongate, often somewhat overlapping or entangled, 0.3-1 mm broad, ± flat or weakly convex in older parts, with sparse to rather numerous cortical hairs on or near lobe ends, the hairs tapered, darkening and sometimes intergrading with the darkening rhizines on underside of lobe ends surface: dingy white to tan-brown or darker brown, usually pruinose at least near the lobe ends and sometimes ± continuously; without soredia or isidia upper cortex: prosoplectenchymatous, medulla: white; lower surface: white to tan, without well developed cortex (noticeably absent at lobe ends, but with some agglutinated hyphae developing inward), sparsely to moderately rhizinate, the rhizines simple to sparsely furcate (very sparse, short, perpendicular side branches sometimes present), mostly concolorous with the lower surface, up to 1 mm long lower cortex: missing or poorly differentiated and intergrading with the medulla Apothecia: rare, up to 1 mm in diam., sessile to short stipitate, the margin entire to irregularly crenate ascospores: 25-31 x 13-14 µm Pycnidia: rare, immersed conidia: bacilliform, 3.5-5 x <1 µm Spot tests: all negative for both cortex and medulla Secondary products: trace unknown terpenoids (2 or 3). Substrate and ecology: rock or soil over rock, mostly in open areas World distribution: North America, Europe, north Africa and Asia Sonoran distribution: not yet found in the Sonoran Region, but known from just outside Arizona, in Utah (Kane Co.: 18 mi. NNW of Page, Arizona, Nash 6611), and so included here for comparison, since it is likely yet to be found in the region.