The Caloplaca crenulatella species complex; its intricate taxonomy and description of a new species

0367071 - BÚ 2012 RIV GB eng J - Journal Article
Vondrák, Jan - Říha, P. - Redchenko, O. - Vondráková, O. - Hrouzek, P. - Khodosovtsev, A.
The Caloplaca crenulatella species complex; its intricate taxonomy and description of a new species.
Lichenologist. Roč. 43, č. 3 (2011), s. 467-481. ISSN 0024-2829. E-ISSN 1096-1135
Institutional research plan: CEZ:AV0Z60050516
Keywords : lichens * paraphyletic taxa * phylogeny
Subject RIV: EF - Botanics
Impact factor: 1.195, year: 2011

The Caloplaca crenulatella species complex is monophyletic, based on analysis of ITS nrDNA sequences. It is characterized mainly by its ascospores and a simplified thallus. Caloplaca aquensis, C. borysthenica, C. interfulgens, C. lactea, C. marmorata and C. tominii represent well-defined monophyletic lineages within it. Caloplaca diffusa, described here as a new species, is a well-supported lineage with a distinctive phenotype. Caloplaca crenulatella s. lat. and C. ferrarii s. lat. are heterogeneous taxa appearing in four and two places respectively within our tree. Caloplaca ochracea also belongs to the group, although it has different ascospore characters. Caloplaca gyalolechiaeformis and C. pseudocitrina are later synonyms of C. tominii. Arctic and North American sorediate specimens morphologically very close to C. tominii represent a separate lineage recently recognized as C. erichansenii.
Permanent Link: http://hdl.handle.net/11104/0201856