Two new species and one new variety of Agaricales from central Honshu, Japan

Abstract

Two new species and one new variety of Agaricales are described and illustrated from central Honshu, Japan: Clitocybe trogioides var. odorifera var. nov. (subgenus Cystoclitus section Cystoclitus), forming white, infundibuliform basidiomata, was collected from leaf litter in the Quercus-Pasania forests; Gerronema nemorale sp. nov. (section Xanthophylla), forming small, olivaceous, omphalinoid basidiomata, was found on dead fallen twigs in the Quercus-Pasania forests; Psathyrella cineraria sp. nov. (subgenus Mycophylla section Argillosporae), forming basidiomata covered by detersile, dark grey, fibrillose-squamulose veil, was found on decayed wood of Quercus myrsinaefolia.

Gerronema nemorale (Basidiomycota, Agaricomycetes): anatomic-morphological, cultivational, enzymatic and molecular characteristics and its first records in the Republic of Korea.

“…Its microscopic studies showed that it represents Gerronema nemorale Har. Takah., a fungus recently described as new to science from Honshu, Japan (Takahashi 2000). These collections represent the first published records in the Republic of Korea.…”

“…E c o l o g y. Saprotrophic, lignicolous; growing on stems, branches and twigs of Quercus mongolica and an unidentified broadleaved tree. At the type locality in Japan, it was collected in a lowland forest with dominating Pasania edulis, Quercus myrsinaefolia and Ligustrum japonicum (Takahashi 2000). D i s t r i b u t i o n .…”

Two new psathyrelloid species of Coprinopsis (Agaricales, Psathyrellaceae) from China

“…Morphologically and phylogenetic similar to Coprinopsis jilinensis , C. uliginicola is characterised by long basidiospores of 10–12(–15) µm, pleurocystidia absent and caulocystidia present, pileipellis no encrusting pigment ( Smith 1972 ). Other similar species, C. cineraria is characterised by grey, hygrophanous and striate pileus, little short basidiospores (6.5–8.5 µm), pleurocystidia absent, pileipellis an epithelium ( Takahashi 2000 ); C. melanthina is characterised by little long and subcolourless basidiospores (avl × avw = 10.5 × 5.8 µm), pleurocystidia absent (Kits van Waveren 1985 ); C. pusilla has small basidiomata, grey pileus, subcolourless and verrucose basidiospores (this study) and Psathyrella subagraria has hygrophanous pileus, thick flesh and caulocystidia present ( Smith 1972 ), both of which could be clearly distinguished from C. jilinensis in terms of morphology.…”

“… C. uliginicola is characterised by large basidiomata, brown-black basidiospores, pore present ( Smith 1972 ). C. cineraria is characterised by fibrous veil at the edges easily disappearing, smaller basidiospores (6.5–8.5 × 4–5 µm), pileipellis an epithelium ( Takahashi 2000 ).…”

Trichocybe, a new genus for Clitocybe puberula (Agaricomycetes, Agaricales)

“…Clitocybe is a character-poor genus; in fact, many species differ only in very subtle features, such as basidioma macromorphology, pileipellis structure and basidiospores size (e.g. Harmaja 1969;Bigelow 1982Bigelow , 1985Kuyper 1982Kuyper , 1995Clémençon 1984;Singer 1986;Raithelhuber 1990Raithelhuber , 2004Bon 1997;Takahashi 2000Takahashi , 2003Gregory 2007). From a morphological perspective, this often makes species identification difficult or even daunting.…”