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2 October 2019 Notes on species of the Lecanora albella group (Lecanoraceae) from North America and Europe
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Abstract

Lecanora excludens (syn. L. septentrionalis) is reported as new for North America from Oregon. The synonymy of the two names is discussed. Lecanora intumescens, with two new synonyms: L. hispanica and L. krempelhuberi, is reported from Idaho and confirmed as new for the United States. Additional localities and range extensions for L. albella s.l., L. cateilea and L. carpinea are given. Lecanora carpinea is newly reported for Ontario, Newfoundland and Nova Scotia. Lecanora protervula is shown to be the oldest name at the species level for what has been called Lecanora subpallens Zahlbr. (syn. L. caesiorubella subsp. prolifera, L. caesiorubella subsp. lathamii). Lecanora caesiorubella subsp. saximontana is confirmed for Canada from Alberta, Manitoba and Ontario, and L. cateilea f. pallidotestacea is new for North America. The presence of taxonomically important fatty acids and zeorin are newly noted for some species or subspecies in the group. An argument is made for the appropriateness of using the category of subspecies for geographically meaningful chemotypes in L. caesiorubella, at least in North America, but the presence or absence of norstictic acid is not found to be taxonomically important in L. albella. A key to the North American species of the L. albella group is also provided.

Copyright ©2019 by The American Bryological and Lichenological Society, Inc.
Irwin M. Brodo, Michael Haldeman, and Jiří Malíček "Notes on species of the Lecanora albella group (Lecanoraceae) from North America and Europe," The Bryologist 122(3), 430-450, (2 October 2019). https://doi.org/10.1639/0007-2745-122.3.430
Received: 4 December 2018; Accepted: 26 July 2019; Published: 2 October 2019
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