Abstract
Most species of Candolleomyces have brown or dark brown spores. Although pale-spored members are rare in the genus we frequently collected two such species from many Provinces during our investigations in subtropical China from 2016–2020. As revealed by morphological characterisation and multigene phylogenetic analyses (ITS LSU β-tub and tef-1α) these species which we have named C. subcacao and C. subminutisporus are unique and distinct from known taxa. In addition a new combination C. cladii-marisci is proposed on the basis of ITS sequence analysis of the type specimen. Detailed descriptions colour photos illustrations and a key to related species are presented.
Highlights
IntroductionOn the basis of extensive comparisons of gene sequences and phylogenetic analyses, the historical genus Psathyrella (Fr.) Quél. has been split into several genera
Melzer, which differs from Psathyrella s.s. in lacking pleurocystidia (Örstadius et al 2015; Wächter and Melzer 2020)
100 taxa without pleurocystidia have been previously described in Psathyrella s.l. (Fries 1838; Smith 1972; Kits van Waveren 1985; Örstadius and Kundsen 2012; Battistin et al 2014); many of these taxa
Summary
On the basis of extensive comparisons of gene sequences and phylogenetic analyses, the historical genus Psathyrella (Fr.) Quél. has been split into several genera. On the basis of extensive comparisons of gene sequences and phylogenetic analyses, the historical genus Psathyrella (Fr.) Quél. One of these genera is Candolleomyces D. Melzer, which differs from Psathyrella s.s. in lacking pleurocystidia (Örstadius et al 2015; Wächter and Melzer 2020). 100 taxa (including synonyms and subspecies) without pleurocystidia have been previously described in Psathyrella s.l. (Fries 1838; Smith 1972; Kits van Waveren 1985; Örstadius and Kundsen 2012; Battistin et al 2014); many of these taxa.
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