Abstract
ABSTRACT During an ongoing survey on fungal diversity in Sichuan Province, China, a white filamentous fungus growing on decaying marbled bamboo (Chimonobambusa marmoreal) leaves was collected. Upon conducting the initial morphological diagnosis and BLASTn searches, the new collection was assigned to the genus Arthrobotrys. A multi-locus phylogeny, based on a concatenated dataset (SSU-ITS-LSU-TEF1-RPB2), revealed the new collection in close phylogenetic proximity to Arthrobotrys eryuanensis and A. hyrcanus. However, they differ in shape and size of conidia. The conidia of the new collection are comparatively shorter than those of A. hyrcanus and wider than those of A. eryuanensis. Based on the difference in morphology and molecular data, we proposed the new collection as a new species, Arthrobotrys chinensis sp. nov. Detailed morphological characteristics, illustrations, and an updated phylogeny is provided for the new species.
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