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Rusavskia sorediata (Vainio) S. Y. Kondr. & Kärnefelt (redirected from: Xanthoria sorediata)
Family: Teloschistaceae
[Caloplaca sorediata (Vain.) Du Rietz,  more]
Rusavskia sorediata image
Stephen Sharnoff  
Thallus: foliose, forming small to rather large rosettes up to 3.5 cm wide or small colonies, tightly adnate, lobate lobes: dorsiventral, flattened to convex, 0.4-1.1 mm wide; tips: 0.3-0.7 mm wide, rotund to truncate upper surface: yellow to bright orange, somewhat coarse, sorediate soredia: granular, coarse, formed by small, spherical, laminal pustule-like isidia breaking up into soralia medulla: white, bundled, with elongate hyphae lower surface: white, smooth or somewhat wrinkled, with extremely short, white hapters Apothecia: very rare, laminal, stipitate, up to 2 mm in diam.; margin: smooth to crenulate; disc: orange; epihymenium: brown, c. 10 µm thick; hymenium: hyaline below, 60-90 µm tall; hypothecium: hyaline to pale brown, 20-50 µm thick; paraphyses: simple or often branched, cylindrical, septate asci: clavate, 8-spored ascospores: ellipsoid, polarilocular, hyaline, 12-14 x 6-8.5 µm; septum: 3-4 µm wide Pycnidia: common, immersed among soralia, slightly darker than the upper surface conidia: ellipsoid, 2.2-3.3 x 1-1.5 µm Spot tests: upper surface K+ purple, C-, KC-, P- Secondary metabolites: parietin (major), fallacinal, emodin, teloschistin and parietinic acid. Habitat and ecology: on rock, often calciferous sandstones and exposed, nutrient rich surfaces, in rather dry microclimates at high altitudes World distribution: circumpolar and boreal extending farther south in montane regions, also in subantarctic regions and Australasia Sonoran distribution: rare in the mountains of Arizona, southern California, and Baja California. Notes: Xanthoria sorediata is similar to X. elegans, but X. sorediata invariably produces soralia on the upper surface.
Rusavskia sorediata image
Samuel Brinker  
Rusavskia sorediata image
Stephen Sharnoff  
Rusavskia sorediata image
Stephen Sharnoff  
Rusavskia sorediata image
Stephen Sharnoff  
Rusavskia sorediata image
Stephen Sharnoff  
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Andrew Khitsun  
Rusavskia sorediata image
Rusavskia sorediata image
Andrew Khitsun  
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
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Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Andrew Khitsun  
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Andrew Khitsun  
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image
Rusavskia sorediata image