Two new Marasmiellus species found on the bark of living coniferous and broad-leaved trees in Japan

Two new species of Marasmiellus (Tricholomataceae, Agaricales) are described and illustrated from Japan: (1) Marasmiellus crassitunicatus sp. nov. (subsection Inodermini of section Marasmiellus) forms dark reddish-brown, orbicular to reniform basidiomata constantly accompanied by tufts of short filiform rhizomorphs, growing on the bark of living coniferous or broad-leaved trees; and (2) Marasmiellus vernalis sp. nov. (subsection Quercini of section Dealbati) forms small brown basidiomata with nondiverticulate pileipellis elements, growing on the bark of living Pinus thunbergii in spring (April to June).     

Notes on new Agaricales of Japan 1

Three new species of Agaricales are described and illustrated from eastern Honshu, Japan:Collybia effusa sp. nov. (sectionLevipedes), forming a distinctly sulcate-striate pileus and distant lamellae, was found on dead twigs ofCryptomeria japonica andCallicarpa japonica; Collybia macrosperma sp. nov., forming cylindrical-fusoid, relatively large-sized basidiospores and whitish basidiomata densely covered with fine, soft hairs, was found on dead fallen twigs in aCarpinus andQuercus forest:Marasmiellus, gregarius sp. nov (subsectionRamealini of sectionRameales), forming small, pale colored pilei and diverticulate cheilocystidia, was found on dead twigs ofHydrangea involucrata andTrachelospermum asiaticum.     

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

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

我国鼎湖山微皮伞属的分类研究

本文根据Singer的分类系统就广东鼎湖山自然保护区内所采集到的12种微皮伞Marasmiellus种类作了分类上的研究。这12个种中除白皮微皮伞外其他均为新种或新纪录。新种是近叶生微皮伞Marasmiellus subepiphyllus Bi et G.Y.Zheng sp.nov.及白柄微皮伞Marasmiellus albiceps Bi sp. nov.。     

Two new species ofMarasmius from eastern Honshu, Japan

Two new species belonging toMarasmius (Agaricales) are described and illustrated from eastern Honshu, Japan:Marasmius capitatus sp. nov. (sectionEpiphylli), forming capitate cystidia and small basidiomata with a membranous, white pileus and a minutely pubescent, filiform stipe without basal mycelium, was found on dead fallen leaves ofCryptomeria japonica; Marasmius nivicola sp. nov. (sectionGlobulares), having entirely white, collybioid basidiomata with a furfuraceous to pruinose stipe and distinctly intervenose lamellae, was found on leaf litter of broad-leaved forest.     

Two new species ofMycena from eastern Honshu, Japan

Two new species ofMycena are described and illustrated from eastern Honshu, Japan:Mycena brevicapillata sp. nov. (sectionHiemales), forming tall and slender basidiomata covered overall with long, fusiform or sublageniform dermatocysts, was found on a dead branch ofHydrangea involucrata; Mycena chrysanthemiformis sp. nov. (sectionFragilipedes), forming small, white basidiomata with a campanulate, shallowly sulcate-striate, occasionally subumbonate pileus and adnate-decurrent lamellae, was found on living bark or a dead fallen twig ofAphananthe aspera, Cryptomeria japonica, andZelkova serrata.     

Notes on new Agaricales of Japan 2

Three new species of Agaricales are described and illustrated from eastern Honshu, Japan:Boletus rhodocarpus sp. nov. (sectionLuridi), forming large, deep red basidiomata with a pileus covered with small, blackish brown scales, was found on ground in a highland forest dominated byTsuga diversifolia andAbies veitchii; Phaeomarasmius laccarioides sp. nov. (subgenusCarpophilus), forming a squamulose-fibrillose, reddish brown pileus in which the pileipellis consists of chains of thick-walled sphaerocysts with heavily incrusting, brown pigment, was found on a fallen fruit ofLiquidambar styraciflua; Pluteus phaeocephalus sp. nov. (subsectionHispidodermini of sectionCelluloderma), forming a dark brown, velvety pileus and a white stipe densely covered with dark brown punctate scales, was found on dead fallen twigs ofQuercus serrata.     

Two new species ofInocybe, sectionMarginatae (Agaricales, Cortinariaceae) from Japan

Two new species of the sectionMarginatae are described, namely,Inocybe populea sp. nov. andI. leptoclada sp. nov., from western Japan and eastern Japan, respectively.Inocybe leptoclada is assigned to sectionMarginatae, even though it lacks a marginate bulb.Inocybe populea is placed in the sectionMarginatae because of the presence of a marginate (often indistinct) bulbous base of stipe and the caulocystidia throughout. The discoveries ofI. leptoclada andI. populea provide further evidence that sectionMarginatae and sectionInocybe [=Cortinatae] are poorly defined.     

Notes on new Agaricales of Japan 3

Three new species of Agaricales are described and illustrated from eastern Honshu, Japan:Agrocybe pseudoerebia sp. nov. (sectionVelatae of subgenusAporus), forming fugaceous veil remnants around the pileal margin and relatively shorter basidiospores (less than 10 μm long) without a germ pore, was found on the ground in a broad-leaved forest;Lactarius glutininitens sp. nov. (sectionTriviales of subgenusRussularia), forming a pale grayish, strongly glutinous pileus and watery, latex without discoloration, was found on the ground in a lowland forest dominated byQuercus myrsinaefolia andQuercus serrata; Tricholoma foliicola sp. nov. (close to sectionAlbobrunnea), forming a reddish brown, hygrophanous, dry, glabrous pileus, almost adnate, densely crowded lamellae, small, ellipsoid basidiospores, and clampless hyphae, was found on leaf litter of a broad-leaved forest.     

Three new species ofMarasmius sectionSicci from eastern Honshu, Japan

Three new species belonging toMarasmius sectionSicci (Agaricales) are described and illustrated from eastern Honshu, Japan:Marasmius nocturnus sp. nov., forming a dark brown pileus and marginate lamellae, was found on leaf litter inPasania—Quercus forests;Marasmius occultatus sp. nov., producing brownish orange or light brown basidiomata and long, cylindrical-fusoid basidiospores, was found on dead fallen twigs ofAphananthe aspera andQuercus myrsinaefolia;Marasmius opulentus sp. nov., having a reddish orange pileus and a pubescent stipe, was found on leaf litter in laurel-leaved forest.     

广东、海南两省微皮伞属的种类

本文报道广东省和海南省的微皮伞属Marasmiellus Murr.的种类33种,其中有一个新种和8个国内新记录种。新种是近变白微皮伞Marasmiellus subdealbatus T.H.Li sp.nov.。文中列有上述种类的分种检索表和新种的中文和拉丁文描述。     

Marasmius brunneospermus, a new species ofMarasmius sectionGlobulares from central Honshu, Japan

A new species ofMarasmius sectionGlobulares, Marasmius brunneospermus sp. nov., found in the lowland forest of Kanagawa and Chiba, Japan, is described and illustrated. This species is characterized by a hygrophanous pileus with rugulose-reticulate disk, well-developed basal mycelium attached to an extensive mycelial mat in leaf litter, and conspicuous fusoid-ventricose pleurocystidia. In addition, its brown spore print mottled with white parts is unusual as an infrageneric character in the genusMarasmius.     

Mycena auricoma,a new species ofMycena sectionRadiatae from Japan,andMycena spinosissima,a new record in Japan

Two lignicolous species ofMycena (Agaricales, Basidiomycetes) are described and illustrated from eastern, Japan:Mycena auricoma sp. nov., forming ephemeral coprinoid basidiomata and belonging to sectionRadiatae, was found on a dead fallen twig ofQuercus serrata. It appears to close to a Malaysian species,“Trogia” crinipelliformis. Mycena spinosissima in sectionSacchariferae, new to Japan, was collected from dead bark ofAphananthe aspera, a dead fallen inflorescence ofCryptomeria japonica, and a dead fallen twig ofQuercus serrata.     

New species and records of saprophytic ascomycetes (Myxotrichaceae) from decaying logs in the boreal forest

Decayed wood from fallen white spruce (Picea glauca) and trembling aspen (Populus tremuloides) collected in northeastern Alberta, Canada, was the source of new isolates of species in the ascomycete generaGymnostellatospora andPseudogymnoascus. In addition to new reports ofG. japonica, G. frigida andP. roseus, two new species are described.Gymnostellatospora canadensis sp. nov. resemblesG. japonica but differs in producing brown ascomata and in the formation of an arthroconidial anamorph.Gymnostellatospora subnuda sp. nov. is distinct in lacking differentiated peridial hyphae.Gymnostellatospora alpina was not found in decayed wood but is reviewed based on extralimital material. A dichtomous key to the five species ofGymnostellatospora is provided.     

Some interesting agarics from eastern Austria

Four very rare species ofAgaricales of dry grassland of the Galgenberg near Röschitz (Niederösterreich) are described and their taxonomy, affinities, ecology and distribution are discussed.Marasmiellus graminis (Murr.)Sing. & Hausknecht andCrinipellis subtomentosa (Peck.)Sing. var.mauretanica (Mre.)Sing. & Hausknecht are proposed as new combinations;Campanella inquilina Romagn. apudRedhead is a synonym ofC. caesia Romagn.     

NewLeptographium species from Indonesia and Eastern North America

Leptographium species have predominantly been described from North America, Canada and Europe. These fungi generally occur on conifers and many cause blue-stain of lumber. MostLeptographium species are also associated with insects and in particular, bark beetles (Coleoptera: Scolytidae). Recently, an unknown species ofLeptographium was isolated from pine infested with anIps sp. in Indonesia. In addition, two unknown species have been collected from red spruce (Picea rubra) and balsam fir (Abies balsamea) roots from high elevation sites in Eastern North America. The latter isolates are unusual in that they are associated with the feeding wounds made by the conifer swift mothKorscheltellus gracilus (Lepidoptera: Hepialidae), which is a habitat unique for species ofLeptographium. Comparison with knownLeptographium species has revealed that the isolates from Indonesia and those from Eastern North America represent three previously undescribed taxa. They are, therefore, described in this study asL. pineti sp. nov,L. abieticolens sp. nov. andL. peucophilum sp. nov.     

New anamorphic yeast species: Candida infanticola sp. nov., Candida polysorbophila sp. nov., Candida transvaalensis sp. nov. and Trigonopsis californica sp. nov

Three new species of Candida and a new species of Trigonopsis are described based on their recognition from phylogenetic analysis of gene sequences from large subunit ribosomal RNA, ITS1/ITS2 rRNA, mitochondrial small subunit rRNA and cytochrome oxidase II. Candida infanticola sp. nov. (type strain NRRL Y-17858, CBS 7922) was isolated from the ear of an infant in Germany and is closely related to Candida sorbophila. Candida polysorbophila sp. nov. (type strain NRRL Y-27161, CBS 7317) is a member of the Zygoascus clade and was isolated in South Africa as a contaminant from an emulsion of white oil and polysorbate. Candida transvaalensis sp. nov. (type strain NRRL Y-27140, CBS 6663) was obtained from forest litter, the Transvaal, South Africa, and forms an isolated clade with Candida santjacobensis. Trigonopsis californica sp. nov. (type strain NRRL Y-27307, CBS 10351) represents a contaminant from wine in California, and forms a well-supported clade with Trigonopsis cantarellii, Trigonopsis variabilis and Trigonopsis vinaria.     

Two new species of Agaricales from southwestern islands of Japan

Two new species of Agaricales are described and illustrated from Yaeyama Islands, southwestern Japan: (1) Amanita rubromarginata sp. nov. (section Caesareae Sing. ex Sing. in the subgenus Amanita), forming brownish-orange then reddish-yellow pileus, a pale yellow, squamulose stipe with a thin, membranous, reddish-orange annulus and a thick, saccate volva, and reddish-orange marginate lamellae, found in oak forests of Ishigaki Island; and (2) Tylopilus obscureviolaceus sp. nov. (section Tylopilus), having dark purple basidiomata, white, bitter, unchanging flesh, and a finely purplish-reticulate stipe, found in oak forests of Iriomote Island.     

Entyloma cosmi sp. nov. on Cosmos bipinnatus (Compositae)

Entyloma species causing white smut disease of Cosmos species have been studied. Two species can be recognized, Entyloma holwayi on C. caudatus and C. sulphureus from North America, and E. cosmi sp. nov. on C. bipinnatus from Japan and Europe.     

石耳科(子囊菌门)的新种和新分布

本文报导了石耳科的八个种,其中新种四个,即阿尔泰石耳,鳞芽石耳、亚石耳及太白石耳;三个种是中国的新分布,即皱石耳、亚光石耳及淡腹疤脐衣;一个种即白根石耳为中国及蒙古的新分布。