Two new species of Ceratostomella and Pararamichloridium (Sordariomycetes) from Guangdong, China, based on morphological and phylogenetic evidence
During a survey of fungal diversity in Guangdong Province, China, two fungal strains were obtained from air contaminants, and three fungal strains were recovered from rock surfaces. Morphological characterization combined with multi-locus phylogenetic analyses based on LSU, ITS, and SSU sequence data indicated that these strains belong to the genera Ceratostomella and Pararamichloridium within the class Sordariomycetes. Phylogenetic results showed that the strains form distinct and well-supported lineages, clearly separated from previously described species. Therefore, they are introduced here as two new species: Ceratostomella guangdongensis sp. nov. and Pararamichloridium purpureum sp. nov. Detailed descriptions, illustrations, and a phylogenetic tree are provided. This study highlights rock surfaces and air environments as valuable sources of previously undocumented fungal diversity.
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