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Inocybe lemmi, a new species of section Marginatae from the alpine region of Sweden

Journal article
Authors Ellen Larsson
Jukka Vauras
Cathy L. Cripps
Published in Karstenia
Volume 57
Issue 1-2
Pages 1-9
ISSN 0453-3402
Publication year 2017
Published at Department of Biological and Environmental Sciences
Pages 1-9
Language en
Links doi.org/10.29203/ka.2017.478
https://gup.ub.gu.se/file/207352
Keywords Marginatae, arctic-alpine mycology, molecular systematics, taxonomy
Subject categories Biological Sciences, Biological Systematics

Abstract

A new species, Inocybe lemmi, is described from alpine areas of Sweden. It is closely related to I. candidipes, associated with Pinus ponderosa and described from the southwestern United States. Both belong to the I. praetervisa group in section Marginatae, reserved for species characterized by a stipe with abundant caulocystidia in the upper half, which are sparse in lower half of the stipe. Other species in the I. praetervisa group have distinctly nodulose heterodiametric spores, while I. lemmi and I. candidipes have basally nodulose to angular spores with an elongated apex. A single collection from the alpine zone in Colorado was identified as representing a third lineage, closely related to I. lemmi and I. candidipes. The holotype of the recently described species, I. tundrae, was studied and is confirmed to be a later synonym of I. rivularis.

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