Five new species of the Boletaceae from Japan

Five new species of the Boletaceae (Agaricales) from Japan are described and illustrated: (1) Boletus bannaensis sp. nov. (section Luridi), forming a grayish-brown pileus and rufescent flesh, found in subtropical evergreen broad-leaved forests; (2) Leccinum rhodoporosum sp. nov., forming discolorous red pores, a whitish stipe covered overall with violet-brown to blackish-brown furfuraceous scales and fusoid-cylindrical brown basidiospores, found in subtropical evergreen broad-leaved forests or warm-temperate Quercus-Pinus forests; (3) Pulveroboletus brunneoscabrosus sp. nov., forming a lemon-yellow pulverulent basidiomata covered overall with orange to brownish-orange appressed scales, found in subtropical to warm temperate evergreen broad-leaved forests; (4) Rubinoboletus monstrosus sp. nov., forming a brownish-orange to yellowish-brown pileus and a very short, nonreticulate, hollow stipe, found in subtropical evergreen broad-leaved forests; and (5) Tylopilus fuligineoviolaceus sp. nov., having a deep violet to blackish-brown pileus and brunnescent hymenophore, found in warm temperate Quercus-Castanopsis forests.     

Two new species and one new combination of Agaricales from Japan

 Two new species and one new combination of Agaricales are described and illustrated from eastern Honshu, Japan, and Ishigaki Island, southwestern Japan: (1) Gymnopus oncospermatis comb. nov. (subsection Vestipedes of section Vestipedes), new to Japan, has pale brown to whitish, collybioid basidiomata with very close lamellae, and forms a distinct white extensive mycelial mat on the dead leaf bases of the palm Satakentia liukiuensis in Ishigaki Island; (2) Hydropus aurarius sp. nov. (subsection floccipedes of section floccipedes), forming clitocyboid basidiomata with a dark brown furfuraceous pileus and stipe and vivid yellow lamellae, found on fallen dead twigs in oak forests; and (3) Tylopilus castanoides sp. nov. (section Oxydabiles), forming medium to large, reddish-brown basidiomata with a minutely scurfy-punctate stipe, found in Carpinio quercion forests. Received: May 20, 2002 / Accepted: July 17, 2002 Acknowledgments I am grateful to Dr. Yousuke Degawa (KPM) for allowing the specimens cited to be kept in the Kanagawa Prefectural Museum of Natural History. Thanks are also owed to Mr. Sadayoshi Uehara, Mr. Wakao Ikeda, Mrs. Youko Ando, Dr. Yasushi Shibata, and Mr. Yasuhiko Goto for provision of specimens. Correspondence to:H. Takahashi     

Two new species and one new variety of Oudemansiella (Agaricales) from Japan

Two new species and one new variety of Oudemansiella (Agaricales) from Japan are described and illustrated: (1) Oudemansiella latilamellata sp. nov. (subgenus Xerula, section Radicatae) has relatively broad lamellae and broadly ellipsoid spores with a subacute apex; (2) Oudemansiella rhodophylla sp. nov. (subgenus Xerula, section Radicatae), growing in deciduous forests of Fagus crenata, Quercus crispula, etc., is characteristic in having lamellae tinted reddish; and (3) Oudemansiella amygdaliformis var. bispora var. nov. (subgenus Xerula, section Albotomentosae) is distinguished from the type variety by having two-spored basidia and grows in evergreen oak forests (Castanopsis sieboldii, Quercus glauca, etc.) or bamboo groves.     

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.     

Three new species ofCrinipellis found in Iriomote Island, southwestern Japan, and central Honshu, Japan

Three new species ofCrinipellis (Agaricales, Basidiomycetes) in Japan are described and illustrated:Crinipellis canescens sp. nov., forming small, canescent basidiomata, was found on a dead fallen twig in the subtropical laurelleaved forest of Iriomote Island (southwestern Japan);Crinipellis corvina sp. nov., forming fibrillose-strigose, puriplish black hairs enveloping the whole basidioma, was found on bark ofTorreya nucifera in Mt. Takao, Tokyo;Crinipellis nigricaulis sp. nov., having a reddish brown pileus with a minute, black papilla and a blackish stipe accompanied by blackish, branched rhizomorphs, was found on leaf litter in the lowland forest of Kanagawa.     

New species of <Emphasis Type="Italic">Clitocybe </Emphasis>and <Emphasis Type="Italic">Crepidotus </Emphasis>(Agaricales) from eastern Honshu,Japan

 Three new species of Agaricales from eastern Honshu, Japan, are described and illustrated. (1) Clitocybe minutella sp. nov. (section Vernae), having white, very small, clitocyboid basidiomata with white, strigose mycelial tomentum at the base of the stipe and trichodermial elements in the pileipellis, occurs on leaf litter in deciduous oak forests. (2) Crepidotus longicomatus sp.nov. (section Echinospori), forms very small (up to 3.5 mm in diameter), reniform basidiomata densely covered overall with white to pale yellow, erect, thick-walled, long hairs. It has melleous, echinulate basidiospores, and was found on fallen dead branches in lowland oak forests. (3) Crepidotus virgineus sp. nov. (section Crepidotus), forming pure white, reniform basidiomata, has smooth, ellipsoid basidiospores, subfusiform-pedicellate to irregularly cylindrical cheilocystidia, and abundant clamp connections. It occurs on fallen dead branches in lowland oak forests. Received: August 22, 2002 / Accepted: January 8, 2003 Acknowledgments I am grateful to Dr. Yousuke Degawa (KPM) for allowing the specimens cited to be kept in the Kanagawa Prefectural Museum of Natural History. Correspondence to:H. Takahashi     

Notes on the genus <Emphasis Type="Italic">Inocybe</Emphasis> of Japan. IV. Species having metuloids collected from Hokkaido,Honshu, and Kyushu

This fourth paper in the series considers five species of Inocybe occurring in Hokkaido, Honshu, and Kyushu. (1) Inocybe furfurea (section Tardae) is recorded from Hokkaido as new to Japan. (2) Inocybe luteola sp. nov. (section Tardae) is described from eastern Honshu (Chiba). It has smooth basidiospores and thick-walled caulocystidia descending to the middle of the stipe. (3) Inocybe napiformis sp. nov. [section Inocybe (= Cortinatae)], known from Hokkaido, appears close to Inocybe napipes, but characters of the metuloids distinguish the two species. (4) Inocybe grammata (section Marginatae) is recorded from Hokkaido and Nagano as new to Japan. (5) Inocybe pyriformis sp. nov. (section Marginatae) is described from Kyushu (Miyazaki). It has nodulose basidiospores and caulocystidia wholly covering the stipe surface. However, I. pyriformis is not typical in the section, lacking a marginate bulbous base in its stipe.     

A new species of <Emphasis Type="Italic">Cortinarius</Emphasis> sect. <Emphasis Type="Italic">Orellani</Emphasis> from Japan

Cortinarius breviradicatus sp. nov., found in deciduous forests, is described and illustrated from Niigata, Japan. It is characterized by its medium-sized to large dark brown basidiocarp, acutely conical pileus, and rooting stipe, and by subglobose to broadly ellipsoid basidiospores. In addition, the extracting solution from its basidiocarps exhibits a strong fluorescence around 400–430 nm in ultraviolet radiation (250 nm), which was observed in a species of Cortinarius sect. Orellani. The new species belongs to the section Orellani. The differences between the new taxon and similar species are briefly discussed.     

A new species ofCortinarius Sect.Hydrocybe from Japan

Cortinarius laccarioides sp. nov., found in deciduous forests, is described and illustrated. It is characterized by its small hygrophanous pileus, greyish red or greyish violet lamellae and stipe, and globose to subglobose basidiospores. The differences betweenC. laccarioides and similar species are briefly discussed.     

Eight new species of the genus <Emphasis Type="Italic">Mycena</Emphasis> from central Honshu,Japan

Eight new species of the genus Mycena (Agaricales) found on dead leaves or twigs in warm temperate lowland forests are described and illustrated from central Honshu, Japan: (1) Mycena fonticola sp. nov. (section Fragilipedes); (2) Mycena intersecta sp. nov. (section Fragilipedes); (3) Mycena lanuginosa sp. nov. (section Fragilipedes); (4) Mycena mustea sp. nov. (section Fragilipedes); (5) Mycena multiplicata sp. nov. (section Mycena); (6) Mycena nidificata sp. nov. (section Hiemales); (7) Mycena fuscoaurantiaca sp. nov. (section Fragilipedes); and (8) Mycena clariviolacea sp. nov. (section Fragilipedes).     

Two new species ofMarasmiellus from eastern Honshu, Japan

Two new species ofMarasmiellus are described from eastern Honshu, Japan:Marasmiellus atrostipitatus sp. nov. (sectionRameales subsectionOpacini) is characterized by a white pileus and a blackish stipe covered with white pruinose to flocculos scales.Marasmiellus brunneocarpus sp. nov. (sectionTricolores) has small brownish basidiomata. Both species occur on dead leaves and twigs inQuercus-Eurya forests.     

Ammonia fungi of iriomote Island in the southern Ryukyus,Japan and a new ammonia fungus,Hebeloma luchuense

Species composition and fruiting season of ammonia fungi were investigated in Iriomote Island of the southern Ryukyus, Okinawa Prefecture, Japan.Castanopsis andPinus forests were surveyed and 10 species of ammonia fungi were collected, including one new agaric species,Hebeloma luchuense sp. nov. This new fungus is characterized by having a rooting, squamulose-scaly stipe and cortinate veil and forms ectomycorrhizae withCastanopsis cuspidata var.sieboldii. Although the general mushroom season in theCastanopsis forest in Iriomote island was very short and restricted to summer, ammonia fungi were observed to fruit throughout the year in urea-treated plots.     

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.     

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.     

A new species of <Emphasis Type="Italic">Gymnopilus</Emphasis> Sect. <Emphasis Type="Italic">Microspori</Emphasis> from Japan

Gymnopilus ombrophilus sp. nov., growing on rotten wood of conifers and hardwoods from Niigata, Japan is described and illustrated. It is characterized by its medium-sized, brownish-orange basidiocarps with a finely squamulose pileus, stipe lacking an annulus, and mild taste, and microscopically by dextrinoid, small, broadly ellipsoid basidiospores. The new species belongs to the section Microspori. The differences between the taxon and similar species are briefly discussed.     

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.     

Four new species of <Emphasis Type="Italic">Crinipellis </Emphasis>and <Emphasis Type="Italic">Marasmius </Emphasis>in eastern Honshu,Japan

 Four new species of Crinipellis and Marasmius (Agaricales, Basidiomycetes) in eastern Honshu, Japan, are described and illustrated: (1) Crinipellis conchata sp. nov. (section Excentricinae), forming a conchate pileus and a strongly excentric, short stipe, was found on a dead twig of Trachelospermum asiaticum in Mt. Takao, Tokyo; (2) Marasmius funalis sp. nov. (section Androsacei), forming a densely white-hispid, dark brown stipe bearing numerous setiform caulocystidia, was found on a dead twig of Cryptomeria japonica or on leaf litter in Tokyo and Kanagawa; (3) Marasmius maculosus sp. nov. (section Sicci), having a relatively large, reddish-brown pileus distinctly mottled with pale colored spots and Siccus-type cheilocystidia and pileipellis cells with relatively long setulae, was found on leaf litter in the lowland forest of Kanagawa and Chiba; and (4) Marasmius sasicola sp. nov. (section Marasmius), having a small, plicate-sulcate pileus, a filiform, wiry, blackish stipe, collariate lamellae, and Siccus-type cheilocystidia and pileipellis elements, was found on fallen dead leaves of grass bamboo in Kanagawa. Received: January 30, 2002 / Accepted: May 24, 2002     

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.     

Fossil wood flora of the early Miocene Nawamata formation of Monzen,Noto Peninsula,central Japan

Silicified wood collected from the Lower Miocene Nawamata Formation at two localities, Nakaya and Nigoriike, Monzen-machi, Noto Peninsula, central Japan, were identified. Among the 58 specimens there are two species of conifers and eleven species of dicotyledons:Taxodioxylon cunninghamioides (Watari) Watari andT. sequoianum (Merckl.) Gothan (both Taxodiaceae),Carya protojaponica Watari (Juglandaceae),Pterocarya rhoifolia Siebold et Zucc. (Juglandaceae),Ostrya monzenensis sp. nov. (Betulaceae),Quercus anataiensis (Watari) Watari (Fagaceae),Liquidambar hisauchii comb. nov. (Hamamelidaceae),Prunus iwatense (Watari) Takahashi et Suzuki (Rosaceae),Gleditsia paleojaponica comb. nov. (Leguminosae),Acer watarianum Takahashi et Suzuki (Aceraceae),Meliosma mio-oldhami sp. nov. (Sabiaceae),Reevesia miocenica Watari (Sterculiaceae), andFraxinus notoensis sp. nov. (Oleaceae). The fossil wood floras at the two localities are compared to the Daijima Flora, and warm-and/or cool-temperate mesic forests are suggested to occur in the Early Miocene of Monzen.     

Anatomy and affinities of the petrified plants from the tertiary of chile V

Four species of dicotyledonous woods including three new species,Aextoxicoxylon harambouri sp. nov.,Myrceugenellites maytenoides sp. nov.,Laurelites doroteaensis sp. nov. andLaurinoxylon uniseriatum Gothan, were described from the Tertiary of Cerro Dorotea, Ultima Esperanza and Fuego Island, Chile. It was elucidated thatNothofagoxylon boureaui Salard from Cerro Dorotea is synonymous withLaurinoxylon uniseriatum from Antarctica. Consecutive number from the previous paper (Nishida, 1984). Contributions from the Laboratory of Phylogenetic Botany, Chiba University No. 118 and contributions from Chiba University Botanical Expedition to the Andes No. 17. Supported by a Grant in-Aid for Overseas Scientific Survey from the Ministry of Education, Science and Culture Nos. 7405, 404114 and 62043014.