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Issue: Vol. 482 No. 2: 29 January 2021
Type: Article
Published: 2021-01-29
DOI: 10.11646/phytotaxa.482.2.8
Page range: 197–207
Abstract views: 20
PDF downloaded: 1

A new and threatened species of Trichaptum (Basidiomycota, Hymenochaetales) from urban mangroves of Santa Catarina Island, Southern Brazil

Laboratório de Micologia, Departamento de Botânica, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CEP: 88040-900, Florianópolis, Santa Catarina, Brazil.
Laboratório de Biologia Molecular e Computacional de Fungos, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, CEP: 31270-901, Belo Horizonte, MG, Brazil.
Laboratório de Biologia Molecular e Computacional de Fungos, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, CEP: 31270-901, Belo Horizonte, MG, Brazil.
Laboratório de Micologia, Departamento de Botânica, Universidade Federal de Santa Catarina, Campus Universitário Trindade, CEP: 88040-900, Florianópolis, Santa Catarina, Brazil.
Taxonomy Polypores Nigrofomitaceae IUCN Fungi

Abstract

Trichaptum comprises around 36 polypore species, with variable morphology and worldwide distribution. During polypore surveys in Santa Catarina Island (Southern Brazil), specimens of a remarkable species, with large, mostly resupinate basidiomata, large (6–11µm long) spores and two kinds of cystidia, were collected in mangrove forests and their vicinities. Morphological and phylogenetic analysis (rDNA ITS) revealed it as new, and is described herein as T. fissile sp. nov. Moreover, the species is proposed as Vulnerable according to the IUCN criteria. The taxonomic placement and delimitation of Trichaptum are also discussed.