Physconia subpallida
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| Taxonavigation: Caliciales |
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Superregnum: Eukaryota |
Familia: Physciaceae
Genus: Physconia
Species: Physconia subpallida
Name[edit]
Physconia subpallida Essl., 1994
Diagnosis: Thallus foliaceus, usque ad 8 cm diametro, superne griseo-fuscus vel brunneus, plus minusve pruinosus; sorediis isidiisque destitutus; subtus albus vel pallido-fulvus, rhizinis squarroso-ramosus, nigrescens.
Type: U.S.A. Vermont. Chittenden Co.: Lake Champlain, Malletts Bay, on elm, 21 Mar 1910, D. B. Griffin 77 (FH, holotype).
Distribution: On bark of hardwoods, less often on rock; presently known from Illinois, Iowa, Ohio, New Jersey, Massachusetts, Vermont, and southern Ontario, but undoubtedly somewhat more broadly distributed in eastern North America.
References[edit]
- Esslinger, T.L. (1994) New species and new combinations in the lichen genus Physconia in North America. - Mycotaxon 51: 91–99. (RLL List # 156 / Rec. # 5236 - Recent Literature on Lichens) (Web site) (Description of Physconia subpallida: pp. 95-97; black-and-white photo: p. 96, fig. 3)
- Hinds, J.W. and Hinds, P.L. (2007) Physonia Poelt, 1965 (pp. 401-405) In, The Macrolichens of New England. - Memoirs of the New York Botanical Garden No. 96. New York Botanical Garden Press, Bronx, New York. 584 pp. (RLL List # 210 / Rec. # 30032 - Recent Literature on Lichens) (Description of Physconia subpallida: p. 405)