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Lecanora rupicola (L.) Zahlbr. (redirected from: Lecanora sordida)
Family: Lecanoraceae
[Glaucomaria rupicola (L.) M. Choisy,  more]
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Stephen Sharnoff  
Thallus: crustose, continuous or rimose areolate to verrucose; prothallus: not visible, or white areoles: flat, thin or thick, opaque or glossy, ecorticate surface: whitish gray to gray or pale green to greenish white, smooth, epruinose, with an indistinct margin, esorediate Apothecia: subimmersed when young, sessile when mature or sessile, 0.5-1.5 mm in diam., lecanorine disc: brown or gray brown, plane, heavily whitish or bluish gray pruinose margin: concolorous with thallus, thin, persistent, even or prominent, not flexuose, smooth, entire or verrucose or verruculose, without a parathecial ring amphithecium: present, with numerous algal cells, with small crystals, soluble in K, ecorticate but with a pseudocortex; pseudocortex: indistinct, basally not thickened, opaque, hyaline, (20-)2530(-35) µm thick parathecium: hyaline, lacking crystals epihymenium: brown to dark brown, with pigment dissolving in K, with crystals dissolving in K hymenium: hyaline, clear; paraphyses: slightly thickened apically, not pigmented; subhymenium: hyaline, 15-20 µm thick; hypothecium: hyaline, without oil droplets asci: clavate, 8-spored ascospores: hyaline, simple, ellipsoid, 9.5-14.5 x (5-)6.5-7.5(-8) µm; wall: less than 1 µm thick Pycnidia: not seen Spot tests: thallus and apothecial margin K+ yellow, C- or +orange to orange-red or yellow, P+ pale yellow; apothecial disc: C+ orange Secondary metabolites: containing atranorin (major), chloroatranorin (minor), eugenitol (minor), roccellic acid (major), sordidone (major) and thiophanic acid (submajor or absent). Substrate and ecology: on exposed siliceous rocks and overhangs World distribution: bipolar to sub-cosmopolitan Sonoran distribution: Arizona and southern California. Notes: Lecanora rupicola is characterized by the heavily pruinose apothecial disc lacking a parathecial ring and a whitish to yellowish gray thallus. The species is easily confused with L. bicincta; the differences between these two species are discussed under that taxon.
Lecanora rupicola image
Troy McMullin  
Lecanora rupicola image
Stephen Sharnoff  
Lecanora rupicola image
Stephen Sharnoff  
Lecanora rupicola image
Stephen Sharnoff  
Lecanora rupicola image
Stephen Sharnoff  
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