Psora cerebriformis

Taxonavigation

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

Familia: Psoraceae
Genus: Psora
Species: Psora cerebriformis

Name

Psora cerebriformis W.A. Weber, 1981

Diagnosis: Thallus terricola cretaceus tumulos hygroscopicos usque ad 5 cm diam formantes, squamulis dense aggregatis sed non imbricatis primo planis mox alte convexis rimosis marginibus revolutis. Cortex argillaceus pseudoparenchymaticus 50-60 µm crassus, strato epinecroso crasso albo tectus. Stratum gonidialium continuum. Medulla alba solida crassa, coacto rhizo-hyphoso substrato affixo. Cortex et medulla K-, C-, KC-, P-, IKI-. Apothecia 10-2 mm diam atra marginalia convexa numerosa plerumque aggregata, excipulo ex hyphis parallelis pallide ferrugineo, ascis clavatis 30-40 µm longis, sporis ellipsoideis (8)10-12(17) x 5-6 µm. Epihymenium ferrugineum K+ vinosum C-, P-, IKI-.

Holotype: U.S.A. Colorado. Montrose Co.: on gypsum knolls, floor of Paradox Valley 4 mi E of Bedrock, 1,500 m, 30 May 1960, Shushan, Anderson & Weber, Lich. Exsicc. COLO No. 24 (COLO).

References

Primary references

• W. Weber, Mycotaxon 13: 104 (1981)

• Weber, W.A. (1981) Lichenes Exsiccati distributed by the University of Colorado Museum, Boulder: Fascicles 1-15, nos. 1-600, 1961-1979. - Mycotaxon 13: 85–104.   **[RLL List # 110-94 / Rec.# 20044] - (Recent Literature on Lichens)** (Complete article)

References

• Brodo, I.M.; Sharnoff, S.D. and Sharnoff, S. (2001) Psora (p. 597-604) In, Lichens of North America. Yale University Press, New Haven, 795 pages.   **[RLL List # 184 / Rec.# 22402] - (Recent Literature on Lichens)** (Discussion of Psora cerebriformis and distribution map for North America: p. 598; color photo: p. 598, plate 722)

• St. Clair, L.L. (1999) Psora Hoffm. (pp. 164-171) In - A color guidebook to common Rocky Mountain lichens. M.L. Bean Life Science Museum of Brigham Young University Publisher, 242 pp.   **[RLL List # 180 / Rec.# 21417] - (Recent Literature on Lichens)** (Description of Psora cerebriformis and color photo: p. 165)

• Timdal, E. (1986) A revision of Psora (Lecideaceae) in North America. - The Bryologist 89: 253–275.   **[RLL List # 131 / Rec.# 18653] - (Recent Literature on Lichens)** (JSTOR) (PDF file - 47 MB) (Discussion of [No. 2] Psora cerebriformis: pp. 259-260; black-and-white photo: p. 259, Fig. 7; distribution map: p. 258, Fig. 3)

• 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 cerebriformis: pp. 421-422; distribution map for the Sonoran region: p. 421)

Links

• Psora cerebriformis in United States Department of Agriculture, Natural Resources Conservation Service, PLANTS Database.

• North American Lichen Checklist, Version (#16) 18 June 2010.

• Psora cerebriformis in Index Fungorum.

• Psora cerebriformis in MycoBank.

Links to photos

• Stephen Sharnoff's Lichen Photos - Psora cerebriformis

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

• U.S. Forest Service - Lichens Photo Gallery (Photo by Larry St. Clair) - Psora cerebriformis

Vernacular names

English: Brain scale lichen,   Cerebral fishscale lichen