Abstract
BackgroundPleosporales is the largest order of Dothideomycetes. In recent years, systematics of Pleosporales have undergone considerable revisions. Dictyosporiaceae is one of the newly established families within this order proposed to accommodate holomorphic saprobic Dothideomycetes. Currently 18 genera are recognised in Dictyosporiaceae.New informationThe new species, Jalapriyaaquaticum sp. nov. and J.apicalivaginatum sp. nov. were collected from freshwater habitats in Gansu and Yunnan Provinces, China, respectively and are introduced, based on morphology and molecular analysis of combined ITS, LSU, SSU and TEF1-α sequence data. We also recovered one fresh collection of Dictyocheirosporavinaya D’souza, Bhat & K.D. Hyde, which is a new record for China. Jalapriyaaquaticum differs from extant species of Jalapriya in rows converging at the apex and apical cells with spherical-like appendages. Jalapriyaapicalivaginatum differs from extant species of Jalapriya in having the rows of conidia mostly arranged in a plane. The phylogenetic analysis place the new collections within Dictyosporiaceae (Pleosporales). Descriptions and illustrations of Jalapriyaaquaticum, J.apicalivaginatum and Dictyocheirosporavinaya are provided. A synopsis of characters of species of Jalapriya is also provided.
Highlights
Pleosporales is the largest order of Dothideomycetes
Holotype: a. scientificName: Jalapriya aquaticum; phylum: Ascomycota; class: Dothideomycetes; order: Pleosporales; family: Dictyosporiaceae; genus: Jalapriya; locationRemarks: China, Yunnan Province, Dali, Cangshan Mountain, Lingquan stream, on decaying wood submerged in stream, April 2019; habitat: Saprobic on decaying wood submerged in stream; collectionID: 1LQX III H Z-7-1; collectionCode: S-2101
Dictyosporiaceae accommodates a holomorphic group of Dothideomycetes, including 18 genera (Hyde et al 2019, Rajeshkumar et al 2021)
Summary
Pleosporales is the largest order of Dothideomycetes. Dictyosporiaceae is one of the newly established families within this order proposed to accommodate holomorphic saprobic Dothideomycetes. We recovered one fresh collection of Dictyocheirospora vinaya D’souza, Bhat & K.D. Hyde, which is a new record for China. Jalapriya aquaticum differs from extant species of Jalapriya in rows converging at the apex. Jalapriya apicalivaginatum differs from extant species of Jalapriya in having the rows of conidia mostly arranged in a plane. The phylogenetic analysis place the new collections within Dictyosporiaceae (Pleosporales). Descriptions and illustrations of Jalapriya aquaticum, J. apicalivaginatum and Dictyocheirospora vinaya are provided. A synopsis of characters of species of Jalapriya is provided.
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