Superregnum: Eukaryota
Regnum: Fungi
Subregnum: Dikarya
Divisio: Ascomycota
Subdivisio: Pezizomycotina
Classis: Eurotiomycetes
Subclassis: Chaetothyriomycetidae
Ordo: Verrucariales
Familia: Verrucariaceae
Genus: Placidium
Species: Placidium lachneum
Varietates: P. l. var. globiferum – P. l. var. lachneum
Name
Placidium lachneum (Ach.) de Lesd., 1932
World distribution: Northern and high mountainous regions of Europe, Asia, North America, the Venezuelan Andes
Basionym
Lichen lachneus Ach., Lich. Svec. Prodr.: 140 (1798)
Synonyms
Catapyrenium lachneum (Ach.) R. Sant., in Hawksworth, James & Coppins, Lichenologist 12 (1): 106 (1980)
Dermatocarpon lachneum (Ach.) A.L. Sm. in Crombie & Smith, Monogr. Brit. Lich. 2: 270 (1911)
References
Primary
de Lesd., Ann. Cryptog. Exot. 5: 100 (1932)
Bouly de Lesdain, M. (1932) Lichens de l'etat de New-Mexico (USA) recueillis par le frère G. Arsène Brouard. - Annales de Cryptogamie Exotique\Ann. Crypt. Exot. 5: 89–139. **[Mattick Rec.# 25784] - (Recent Literature on Lichens - Mattick No.)**
Secondary
Breuss, O. (1996) Ein verfeinertes Gliederungskonzept für Catapyrenium (lichenisierte Ascomyceten, Verrucariaceae) mit einem Schlüssel für die bisher bekannten Arten. Annalen des Naturhistorischen Museums in Wien 98 B Suppl: 35–50. **[RLL List # 166 / Rec.# 2332] - (Recent Literature on Lichens)**
Breuss, O. (2002) Placidium (pp. 384-393) 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.# 23103] - (Recent Literature on Lichens)** (Discussion of Placidium lachneum and distribution map for the Sonoran region: p. 388)
Links
LIAS
Checklist of British Lichens (July 2010)
North American Lichen Checklist, Version (#16) 18 June 2010.
Index Fungorum
MycoBank
Links to photos
Stephen Sharnoff's Lichen Photos -Placidium lachneum
Vernacular names
íslenska: Stallapíra
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