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1 December 2000 Lecanora thysanophora, a Common Leprose Lichen in Eastern North America
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Abstract

Lecanora thysanophora R. C. Harris, n. sp. is described. It is a common lichen in eastern North America, most often found as a sterile corticolous crust, but apothecia are not uncommon when the species grows along streams. Besides being recognizable in the field, it is distinctive chemically, containing usnic acid, zeorin, often porphyrilic acid, and several species-specific terpenoids.

Richard C. Harris, Irwin M. Brodo, and Tor Tønsberg "Lecanora thysanophora, a Common Leprose Lichen in Eastern North America," The Bryologist 103(4), (1 December 2000). https://doi.org/10.1639/0007-2745(2000)103[0790:LTACLL]2.0.CO;2
Received: 15 November 1999; Accepted: 22 June 2000; Published: 1 December 2000
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