Ji-Wen Xia

Corynesporopsis curvularioides sp. nov. and New Records of Microfungi from Southern China

Abstract Corynesporopsis curvularioides sp. nov. is described and illustrated from specimens collected on dead branches in Guangxi Province. The fungus is characterized by its terminal, monotretic conidiogenous cells with catenate, obclavate to ellipsoidal, pale brown to brown, 15–35 × 7–11 µm, 1–5-euseptate conidia. Brachysporiellina pulneyensis, Catenularia cubensis and Kylindria excentrica are newly recorded from China.

Two new species of Spadicoides and Gangliostilbe from southern China

Two new species, Spadicoides bacilliformis and Gangliostilbe yunnanensis on dead branches of Aphanamixis polystachya and Pistacia chinensis, respectively, from tropical and subtropical forests in southern China, are described and illustrated. Spadicoides bacilliformis is distinguished by polytretic conidiogenous cells and bacilliform, 3-euseptate, concolorous conidia. Gangliostilbe yunnanensis is characterized by synnematous conidiophores with monoblastic conidiogenous cells producing obovoid to ellipsoidal, 6- or 7-distoseptate conidia. Keys to Spadicoides and Gangliostilbe species are provided.

Anacacumisporium, a New Genus Based on Morphology and Molecular Analyses from Hainan, China

Abstract The anamorphic taxon Anacacumisporium appendiculatum gen. et sp. nov. is described and illustrated from fallen branches of decaying wood in Hainan, China. Anacacumisporium is characterized by pigmented, transversely septate, appendaged conidia and conidiophores that are brown, macronematous, mononematous and that bear one (or more ) integrated phialide at the tip. Complete sequences of internal transcribed spacer (ITS) and partial sequences of nuc 28S rDNA (28S) genes are provided. The new fungus is compared with morphologically similar genera of hyphomycetes. Phylogenetic analyses revealed its placement in the Chaetosphaeriaceae. A key to the novel genus and morphologically similar genera is given.

Solicorynespora Species Associated with Dead Branches of Subtropical Forests in Southern China

Abstract Four anamorphic fungal species of Solicorynespora are described and illustrated from specimens collected on dead branches of unidentified plants in southern China. Solicorynespora guangdongensis sp. nov. differs from other species by obclavate, 8-13-euseptate, usually 1-distoseptate below, 105–182 × 14.5–20 µm, smooth conidia with 1–7 mucous tunica on the rostrum. Solicorynespora Jiangxiensis sp. nov. is easily distinguished by obclavate, upper cells becoming cylindrical, (62-)108–220 × 11–13 µm, smooth conidia with 9-23-euseptate. Solicorynespora biseptata and S. insolita are recorded for the first time from China.

Atrokylindriopsis, a new genus of hyphomycetes from Hainan, China, with relationship to Chaetothyriales

Atrokylindriopsis setulosa gen. et sp. nov. produces pigmented, septate, setulate conidia that are attached to the monophialidic conidiogenous cells of unbranched, brown, macronematous conidiophores at the midpoint of their long side during conidiogenesis, giving the appearance of a ‘T’. Internal transcribed spacer region (ITS) and partial 28S rDNA sequences indicate placement of Atrokylindriopsis in the Chaetothyriales.

Nakataea setulosa sp. nov. and Uberispora formosa sp. nov. from southern China

Nakataea setulosa sp. nov. and Uberispora formosa sp. nov. are described and illustrated from specimens collected on dead branches of broad-leaved trees in southern China. Nakataea setulosa is unique in producing solitary, acropleurogenous, smooth, fusiform, 3-euseptate, versicoloured conidia with a single, unicellular setula at the tip and at the base, seceding rhexolytically from polyblastic, integrated, terminal and intercalary, sympodial, denticulate conidiogenous cells. Nakataea is compared with similar genera, and a key to its species is presented. Uberispora formosa differs from previously described Uberispora species by its conidial morphology and unbranched conidiophores. The morphology of conidial peripheral cells is noted, whether the pigmented central cell is attached directly to the conidiogenous cell or not, and the presence or absence of a conidial apical cell separate species of Uberispora. A key and a synoptic table to Uberispora species are provided.