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The North American Species of Psathyrella.

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... Psathyrella (Fr.) Quél. is one of the larger genera of Agaricales Underw. comprising about 730 species (index fungorum, 2019), since Fries established the tribe Psathyrella under Agaricus Murrill (Fries 1838;Smith 1972;Kits van Waveren 1985;Örstadius & Kundsen 2012). Traditionally, they were classified in Coprinaceae Roze ex Overeem subfamily Psathyrelloideae (Hawksworth et al. 1983;Hawksworth et al. 1995;Kirk et al. 2001), but Redhead et al. (2001) incorporated them into Psathyrellaceae Vilgalys, Moncalvo & Redhead, based on phylogenetic analysis. ...
... Some other species with the same size of spores, belonging to the subsection, can be separated as follows: the germ pores of basidiospores of P. cortinarioides [synonyms P. frustulenta (Fr.) A.H. Sm.] and P. atomatoides (synonyms P. rannochii Kits van Wav.) are either absent or indistinct (Orton 1960;Smith 1972 (Smith 1972). ...
... Some other species with the same size of spores, belonging to the subsection, can be separated as follows: the germ pores of basidiospores of P. cortinarioides [synonyms P. frustulenta (Fr.) A.H. Sm.] and P. atomatoides (synonyms P. rannochii Kits van Wav.) are either absent or indistinct (Orton 1960;Smith 1972 (Smith 1972). ...
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Psathyrella tintinnabula is discovered in Yunnan Province of China, which is characterized by its small-sized basidiomata, bell-shape pileus, small-sized basidiospores and fusiform pleurocystidia with subacute apex. The studies of morphological characteristics and phylogenetic analyses showed that the new species is unique and evidently distinct from related species within the genus Psathyrella. Detailed description, color photos, illustrations and key to related species are presented.
... which consists of 1,030 records in Index Fungorum (http://www.indexfungorum.org), comprising approximately 500 species (Smith 1972;Kits van Waveren 1985;Örstadius and Kundsen 2012;). It is characteristic of fragile basidiomata, hygrophanous pileus, brown to Specimens are deposited in the Herbarium of Mycology, Jilin Agricultural University (HMJAU). ...
... & Broome) P. D. Orton does not have a germ pore in this subsection, but basidiospores of P. clivensis are obviously broader, 8-10 × 5.5-6.5 μm and ellipsoid to ovoid (Kits van Waveren 1985). It can also be classified in section Fatuae (Smith 1972), some species having sturdy stipe and utriform cystidia, but they can be clearly distinguished from P. conica by other micromorphology. Psathyrella acadiensis A.H. Sm. has smaller basidiospores, which are only up to 6.0 μm long; P. albocinerascens A.H. Sm. has an obvious germ pore and white pileus in the early stage; P. amarella A.H. Sm. and P. spadiceogrisea (Schaeff.) ...
... Psathyrella acadiensis A.H. Sm. has smaller basidiospores, which are only up to 6.0 μm long; P. albocinerascens A.H. Sm. has an obvious germ pore and white pileus in the early stage; P. amarella A.H. Sm. and P. spadiceogrisea (Schaeff.) Maire have an obvious germ pore; P. vesiculocystis A.H. Sm. has pedicellate-pleurocystidia (Smith 1972). Furthermore, P. terrestris Natarajan has aspects of P. conica, whose pileus is umbonate, but it has broadly utriform pleurocystidia and its basidiospores are dark brown, subglobose and up to 8.5 μm broad (Natarajan 1978). ...
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Twenty seven species of Psathyrella have been found in Northeast China. Amongst them, P.conica , P.jilinensis , P.mycenoides and P.subsingeri are described as new species, based on studying morphological characteristics and phylogenetic analyses. Detailed morphological descriptions, line drawings and photographs of the new species are presented. Phylogenetic analysis of the nuclear ribosomal internal transcribed spacer (ITS) region and an identification key to the 27 Psathyrella species occuring in Northeast China are provided.
... In previous studies of Psathyrella, there are approximately 100 taxa lacking pleurocystidia, but this feature has not been used as a key distinguishing feature (Fries 1838;Smith 1972;Kits van Waveren 1985;Örstadius and Kundsen 2012;Battistin et al. 2014). Based on extensive specimen collection, morphological studies and phylogenetic analyses, Candolleomyces has been separated from Psathyrella as a new genus and it differs from Psathyrella s.s. in lacking pleurocystidia. ...
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Three new species, Candolleomyces incanus , C. subcandolleanus and C. yanshanensis , were found and described from Yanshan Mountains in China. The identification is based on morphological observation combined with phylogenetic analysis of ITS-LSU- Tef1α - TUB2 . This study enriched the species diversity of Candolleomyces in Yanshan Mountains and provided important data support for the systematic study of Candolleomyces in the future.
... Together with this last genus, Tubaria (W.G. Sm.) Gillet and Phaeomarasmius include agaricoid mushrooms, many of them lignicolous, with brown spore print, mostly small basidiomata and a simple, dry, filamentous pileipellis; in the past, many species of these genera where included in the wide genus Naucoria Fr. (SINGER, 1950;KÜHNER & ROMAGNESI, 1953), or interpreted as small species of Pholiota (SMITH & HESLER, 1968). Traditionally, mycologists have considered that Tubaria species can be easily recognized macroscopically by the (sub-)decurrent lamellae, whereas in Flammulaster and Phaeomarasmius they are emarginate to adnate; the latter can be distinguished by the more complex pileipellis of Flammulaster, which shows more or less isodiametric to short, wide elements or cells in the hyphae of the pileipellis (sometimes wrongly called "sphaerocysts" or better, sphaerocytes), contrasting with the more simple, filamentous, elongate and regular articles of Phaeomarasmius (VELLINGA, 1986); Phaeomarasmius excentricus Scherff. ...
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We recorded in a tropical dry forest in the northeast of Colombia (Cesar Dept.) 12 species of macrofungi previously unknown for the country; Amanita aureofloccosa, A. crebresulcata (Amanitaceae), Daedalea flavida (Fomitopsidaceae), Ganoderma resinaceum (Ganodermataceae), Marasmius cohortalis (Marasmiaceae), Phellinus merrilli, P. aff. umbrinellus (Hymenochaetaceae), Phlebopus beniensis (Boletinellaceae), Podoschypha petalodes (Meruliaceae), Psathyrella murrilli (Coprinaceae), Rigidoporus ulmarius (Meripilaceae) and Trametes socotrana (Polyporaceae). Each species is described, its taxonomic relationships are discussed, and some observations on its distribution and ecology are provided.
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Recently Psathyrella candolleana (Fr.:Fr.) Maire var. candolleana (Fr.) Maire (1913) was gathered from Lainchour, Kathmandu. It is considered as new record for Nepal. The brief description, distribution and the photograph of the species has been included in this paper.Scientific World, Vol. 12, No. 12, September 2014, page 77-78
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