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Issue: Vol. 436 No. 3: 19 March 2020
Type: Article
Published: 2020-03-19
DOI: 10.11646/phytotaxa.436.3.2
Page range: 222–236
Abstract views: 27
PDF downloaded: 1

Two novel species of Lactifluus subg. Pseudogymnocarpi (Russulaceae) from Brazil

Programa de Pós Graduação em Sistemática e Evolução, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil.
Programa de Pós Graduação em Sistemática e Evolução, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil.
Instituto Nacional de Pesquisas da Amazônia (INPA), Dept. of Biodiversity (CBio) C.P. 478, 69011-970 Manaus, Amazonas, Brazil.
Department of Natural History, Royal Ontario Museum & Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Canada.
Department of Natural History, Royal Ontario Museum & Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Canada.
Laboratoire Evolution et Diversité Biologique, Université Paul Sabatier—CNRS, Toulouse, France.
Departamento de Sistemática e Ecologia, Universidade Federal da Paraíba, João Pessoa, Paraíba, Brazil.
Agaricomycetes milkcaps Neotropics new taxa phylogeny rDNA ITS Russulales Fungi

Abstract

Two new species in Lactifluus subg. Pseudogymnocarpi, Lf. umbilicatus and Lf. venosellus were collected from Amazonian and Atlantic forests of Brazil, respectively. Detailed macro- and micromorphological descriptions, including scanning electron microscopy images of the basidiospores, are provided. The putative phylogenetic placement of these taxa was investigated based on ITS sequence analyses. Comparisons with related taxa are discussed.