Shun-Ichi Udagawa

Cordyceps owariensis f. viridescens forma nov. (Nom. Jap., Amami-yarinohosemitake) is described from an underground nymph of Platypleura kuroiwae collected in Amami-oshima Island, southwestern Japan. Cultural isolations were made from ascospores of the fresh material of this fungus, and consequently a new hyphomycete was developed as its anamorph. Nomuraea owariensis is described to accommodate this anamorphic state. This is the first report on the association of a Nomuraea anamorph with cicadicolous Cordyceps species.

A new genus, Neocarpenteles, the Trichocomaceae (Eurotiales), and a new combination, N. acanthosporum, are proposed to accommodate Hemicarpenteles acanthosporus Udagawa et Takada. The fungus is characterized by sclerotioid, nonostiolate, unilocular stromata in which asci gradually produce, outward from the center, lenticular ascospores with two equatorial crests and convex surfaces ornamented by triangular ridges and microtubercles, and an Aspergillus anamorph with uniseriate aspergilla. It has the Q-10 system as the major ubiquinone.

A new genus, Neocarpenteles, the Trichocomaceae (Eurotiales), and a new combination, N. acanthosporum, are proposed to accommodate Hemicarpenteles acanthosporus Udagawa et Takada. The fungus is characterized by sclerotioid, nonostiolate, unilocular stromata in which asci gradually produce, outward from the center, lenticular ascospores with two equatorial crests and convex surfaces ornamented by triangular ridges and microtubercles, and an Aspergillus anamorph with uniseriate aspergilla. It has the Q-10 system as the major ubiquinone.

Cordyceps owariensis f. viridescens forma nov. (Nom. Jap., Amami-yarinohosemitake) is described from an underground nymph of Platypleura kuroiwae collected in Amami-oshima Island, southwestern Japan. Cultural isolations were made from ascospores of the fresh material of this fungus, and consequently a new hyphomycete was developed as its anamorph. Nomuraea owariensis is described to accommodate this anamorphic state. This is the first report on the association of a Nomuraea anamorph with cicadicolous Cordyceps species.

Three noteworthy taxa of soil-borne onygenalean fungi are described and illustrated: Kraurogymnocarpa trochleospora, comb. nov., Kuehniella aurea, comb. nov., and Nannizziopsis albicans. In addition, Aphanoascus boninensis, which was previously described as a new species, is considered to be a synonym of Uncinocarpus orissi.

Three noteworthy taxa of soil-borne onygenalean fungi are described and illustrated: Kraurogymnocarpa trochleospora. comb. nov., Kuehniella aurea, comb. nov., and Nannizziopsis albicans. In addition, Aphanoascus boninensis, which was previously described as a new species, is considered to be a synonym of Uncinocarpus orissi.

Two microfungi are described as new to Japan: Amaurascopsis reticulatus (Amauroascaceae, Ascomycetes), isolated from forest soil in Kamakura, has not been recorded since it was Originally found and is characterized by yellow to orange-red ascomata with undifferentiated peridial hyphae and globose ascospores with contorted ridges appearing irregularly punctate-reticulate; and Hobsonia mirabilis (helicosporous hyphomycete), isolated from the cut stem of a thistle in Hachijo-jima, is characterized by gelatinous sporodochia and hyaline, tortuously coiled conidia.

Two new species of soil-borne onygenalean fungi are described and illustrated: Arachniotus insolitus, isolated from forest soil in Kenya, and Myxotrichum stellatum, isolated from forest soil in Japan. A further occurrence of Gymnoascus uncinatus, isolated from Canadian soil, is reported and some observations are added, especially in connection with the cultural appearance of this rarely encountered species.

From recent isolates of microfungi on soil materials collected at several localities in Japan, three onygenalean species are described and photographed as new to Japan: Aphanoascus durus, Kuehniella racovitzae, and Shanorella spirotricha.

Two interesting ascomycetes are described as new to Japan: Ascotricha amesii (Xylariaceae), isolated from garden soil in Osaka; and Auxarthron reticulatum, isolated from forest soil in Tokyo. A Dicyma anamorph is associated with the former species.