Psora pruinosa

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Taxonavigation: Lecanorales 

Superregnum: Eukaryota
Regnum: Fungi
Subregnum: Dikarya
Divisio: Ascomycota
Subdivisio: Pezizomycotina
Classis: Lecanoromycetes
Subclassis: Lecanoromycetidae
Ordo: Lecanorales

Familia: Psoraceae
Genus: Psora
Species: Psora pruinosa


Psora pruinosa Timdal, 2002

Diagnosis: Squamae ad 3 mm latae, adnatae vel partim adscendentes, brunneae pruinosae laeves, margine epruinoso. Apothecia ad 1.5 mm lata, laminalia, immarginata, brunnea, epruinosa. Thallus pannarinum continens.

Type: MEXICO. Baja California, 10 km S of the bridge over El Rosario wash, 30o03'N, 115o35'W, 230 m, 1993, Timdal SON32/6 (O, holotype)

Substrate and ecology: On soil in open habitats, in Vizcaino subdivision of Sonoran Desert and in Californian coastal scrub, up to 440 m

World and Sonoran distribution: Rare in southern California and Baja California.


  • Timdal, E. (2002) Psora (pp. 418-430) In: Nash III, T.H.; Ryan, B.D.; Gries, C. and Bungartz, F. (eds.), Lichen Flora of the Greater Sonoran Desert Region, Vol. 1. Lichens Unlimited, Arizona State University, Tempe, Arizona, 532 pages.   **[RLL List # 187 / Rec.# 23117] - (Recent Literature on Lichens)** (PDF file - 27 MB) (Discussion of Psora pruinosa: pp. 428-429; distribution map for the Sonoran region: p. 428; black-and-white photo: p. 428, Fig. 88)


Links to photos[edit]

  • The Lichen Herbarium, Natural History Museum, University of Oslo, Norway (Photo Gallery) - Psora pruinosa

Vernacular names[edit]