Abstract
In this study, Coprinopsisjilinensis and Coprinopsispusilla were introduced, based on their morphological characteristics, the internal transcribed spacer (ITS) and large subunit ribosomal (LSU) region sequences of nrDNA. These new psathyrelloid species were found in Jilin Province, China. Coprinopsisjilinensis has brown pileus, utriform pleurocystidia, brown, smooth, dextrinoid basidiospores and tiny pore. It mainly grows on humus. Coprinopsispusilla has small basidiomata, greyish-white pileus, thick and distinct veil at edges, subcolourless and verrucose basidiospores. It is poreless and it grows on the decaying wood of broad-leaved trees. Both of them belong to the C.sect.Melanthinae. A supplementary description of C.sect.Melanthinae was given in combination with the newly-discovered taxa and an identification key to the fourteen psathyrelloid species of Coprinopsis is provided. Coprinopsissect.Canocipes and C.sect.Quartoconatae were evaluated and the phylogenetic position of the psathyrelloid species of Coprinopsis was discussed. Psathyrellasubagraria, as a confusing species, was also discussed in this study.
Highlights
Coprinoid mushrooms are fascinating fungal taxa with the characteristic of deliquescent lamellae
The sequence identities between C. jilinensis and C. uliginicola KC992960 Type (Örstadius et al 2015) were 93.98%–94.35%, with 39–42 base differences
Since psathyrelloid species belong to different genera, their distributions were not indicated phylogenetically in their study
Summary
Coprinoid mushrooms are fascinating fungal taxa with the characteristic of deliquescent lamellae. Coprinus sensu lato is not monophyletic (Johnson and Vilgalys 1998; Hopple and Vilgalys 1999; Park et al 1999a, 1999b; Moncalvo et al 2002). Redhead et al (2001) subdivided Coprinus s. (Psathyrellaceae) and Parasola Redhead, Vilgalys & Hopple (Psathyrellaceae). 100 species were divided from Coprinus s. Noordeloos et al (2005) argued that there were many unresolved problems in the phylogeny and it was too early to subdivide it into four genera
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