Micro-fungi in southern China and northern Thailand: emphasis on medicinal plants

Abstract

This study documents the morphology and phylogeny of micro-fungi collected from various medicinal plants in southern China and northern Thailand. Based on morphological characteristics and phylogenetic analyses, 99 species were identified, classified within one phylum ( Ascomycota ), spanning three classes ( Dothideomycetes , Leotiomycetes and Sordariomycetes ), 16 orders, 36 families and 67 genera. We introduce one new order, Oncopodiellales , two new families, Catenuliconidiaceae and Oncopodiellaceae , one new genus, Biascospora , and 48 new species: Achroiostachys brunnea , A. catenata , Amphisphaeria hibiscicola , Apiculospora thailandensis , Arecophila maolanensis , A. yunnanensis , Barriopsis caryotae , Biascospora chishuiensis , Conioscypha synnemata , Diaporthe ervatamiae , D. kunmingensis , D. tuchungicola , Dictyocheirospora xishuiensis , Diplocladiella hainanensis , Distoseptispora gelatinosa , D. olivaceoviridis , Gregatothecium diflugossae , Helicosporium multiseptatum , Helminthosporium thailandicum , Kalmusia tetrastigmae , Keissleriella yunnanensis , Lasiodiplodia houttuyniae , L. liliacearum , Leptospora houttuyniae , Lophiotrema asexuale , L. guizhouense , Melanopsamma tongrenensis , Memnoniella chiangmaiensis , Murichromolaenicola dendrobii , Heleiosa brunnea , Neohelicascus guizhouensis , Neohelicomyces sexualis , Neohendersonia tongrenensis , Neomassaria fibraureae , Neoscytalidium dendrobii , Parabahusutrabeeja hyalina , Paramyrothecium xishuiense , Phaeosphaeria boehmeriae , P. guiyangensis , Phaeosphaeriopsis oblongispora , Psiloglonium bambusicola , P. brunneum , P. guizhouense , Roussoella panzhouensis , Seriascoma guizhouense , Striaticonidium olivaceobrunneum , Vamsapriya chiangraiensis and Virgatospora thailandica, with illustrations, discussions of their taxonomic placement, and comparisons with morphologically similar taxa. Twelve new combinations are introduced: Conioscypha chiangmaiensis (≡ Vanakripa chiangmaiensis ), C. minutiellipsoidea (≡ Vanakripa minutiellipsoidea ), Conioscypha obovoidea (≡ Vanakripa obovoidea ), Heleiosa guizhouensis (≡ Neoheleiosa guizhouensis ), H. lincangensis (≡ Neoheleiosa lincangensis ), Keissleriella acaciae (≡ Pleurophoma acaciae ), K. italicum (≡ Pleurophoma italica ), K. ossicula (≡ Pleurophoma ossicola ), K. pleurospora (≡ Phoma pleurospora ), Phaeosphaeria brachylaenae (≡ Didymocyrtis brachylaenae ), P. pini (≡ Didymocyrtis pini ) and P. septata (≡ Didymocyrtis septata ). Additionally, we report 34 new host records from medicinal plants and seven new geographical records for China and Thailand. We also resolved inter-generic synonymy for two species. A reference specimen is designated for Diplocladiella taurina . Detailed descriptions and illustrations of all these taxa are provided.

Topics & Concepts