Ying-Rui Ma

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.

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.