Claudopus niger (Entolomataceae – Basidiomycota), a new species from the Argentinean Atlantic Forest. Issue 2 (3rd April 2022)

• Record Type: Journal Article
• Authors: Niveiro, Nicolás; Ramirez, Natalia A.; Baroni, Timothy J.; Jimenez, Soledad; Popoff, Orlando; Albertó, Edgardo
• Is Part Of: New Zealand journal of botany. Volume 60:Issue 2(2022)
• Page Start: 159
• Page End: 168
• Publication Date: 2022-04-03
• Subjects: Agaricales -- Argentina -- Claudopus byssisedus -- Entoloma -- taxonomy; Botany -- Periodicals; Plants -- New Zealand -- Periodicals; 581.993
• DOI: 10.1080/0028825X.2021.1955714
• Languages: English
• ISSNs: 0028-825X

Abstract

ABSTRACT: The genus Claudopus (Entolomataceae) is characterised by its crepidotoid or pleurotoid basidiomata, a highly reduced and lateral or almost absent stipe, flesh-brown, salmon or pinkish-brown spore-print, and basidiospores that are distinctly angular in all views. Currently, ca. 20 species of Claudopus have been described worldwide. Some samples collected in the Argentinean Atlantic Forest have shown a set of characters that does not match with any of the species of Claudopus described until date. The aim of this work is to describe and illustrate a species of Claudopus new to science. Claudopus niger is distinguished from other species of Claudopus by its dark, almost black pileus surface, pinkish brown to brownish gray, ventricose lamellae; heterodiametric basidiospores, 5–7 angled (in profile view) and 8.5–11.5 × 5.5–7.5 µm in size, and a hymenium lacking cystidia. Claudopus byssisedus, the most phenetically related species and with a wide distribution in temperate and cold regions, has a paler colour and slightly larger basidiospores.