From one to six: unrecognized species diversity in the genus Acantholichen (lichenized Basidiomycota: Hygrophoraceae)

Autor: Masoumeh Sikaroodi, Adriano Afonso Spielmann, Patrick M. Gillevet, Manuela Dal-Forno, James D. Lawrey, Luis Fernando Coca, Marcelo Pinto Marcelli, José Luis Chaves, Alba Yánez-Ayabaca, Robert Lücking, André Aptroot, Frank Bungartz, Harrie J. M. Sipman
Rok vydání: 2015
Předmět:
Zdroj: Mycologia. 108(1)
ISSN: 0027-5514
Popis: 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 Galapagos, 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.
Databáze: OpenAIRE