1. From one to six: unrecognized species diversity in the genus Acantholichen (lichenized Basidiomycota: Hygrophoraceae.
- Author
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Dal-Forno, Manuela, Lücking, Robert, Bungartz, Frank, Yánez-Ayabaca, Alba, Marcelli, Marcelo P., Spielmann, Adriano A., Fernando Coca, Luis, Luis Chaves, Josá, Aptroot, Andre, Sipman, Harrie J. M., Patrick Gillevet, Masoumeh Sikaroodi, and Lawrey, James D.
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BASIDIOMYCOTA , *MOUNTAIN forests , *FUNGAL phylogeny , *SPECIES , *GENOME walking , *MICROSCOPY - Abstract
We present a taxonomic revision of the lichenized basidiomycete genus Acantholichen, species of which produce a characteristic blue-gray, microsquamulose thallus with spiny apical hyphal cells known as acanthohyphidia. Since its discovery, the genus was thought to be monospecific, only including the generic type, A. pannarioides. However, a detailed morphological and anatomical study of recently collected specimens from the Galápagos, Costa Rica, Brazil and Colombia, combined with a molecular phylogenetic analysis of the internal transcribed spacer (ITS1-5.8S-ITS2) region and 28S of the nuc rDNA and RPB2 sequences, revealed a much more diverse and widespread species assemblage. Based on the results of these analyses, we describe five new species in the genus: A. albomarginatus, A. campestris, A. galapagoensis, A. sorediatus and A. variabilis. We also provide an identification key to all species, anatomical and morphological descriptions, photographs and a table comparing main characters of each species. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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