Corticolous and Lignicolous Species of Lecanora (Lecanoraceae, Lecanorales) with Usnic or Isousnic Acid in the Sonoran Desert Region

Christian Printzen

doi:10.1639/0007-2745(2001)104[0382:CALSOL]2.0.CO;2

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Christian Printzen¹

¹Botanisk Institutt, Universitetet i Bergen, Allégaten 41, N-5007 Bergen, Norway

Abstract

A taxonomic study of corticolous species of Lecanora in the Sonoran Desert region containing usnic acids and not belonging to Lecanora s. str. is presented. Descriptions, notes on the ecology and distribution and a key to the 17 species recognized within the area are included. Lecanora coniferarum Printzen, L. latens Printzen, L. perconfusa Printzen, and L. substrobilina Printzen are described as new to science. The following new combinations are proposed: Lecanora densa (Śliwa & Wetmore) Printzen, L. laxa (Śliwa & Wetmore) Printzen, and L. americana (B. de Lesd.) Printzen.

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Christian Printzen "Corticolous and Lignicolous Species of Lecanora (Lecanoraceae, Lecanorales) with Usnic or Isousnic Acid in the Sonoran Desert Region," The Bryologist 104(3), 382-409, (1 September 2001). https://doi.org/10.1639/0007-2745(2001)104[0382:CALSOL]2.0.CO;2

Received: 25 October 2000; Accepted: 1 April 2001; Published: 1 September 2001

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