Freshwater fungi from karst landscapes in China and Thailand

Freshwater fungi comprises a highly diverse group of organisms occurring in freshwater habitats throughout the world.Dur-ing a survey of freshwater fungi on submerged wood in streams and lakes,a wide range of sexual and asexual species were collected mainly from karst regions in China and Thailand.Phylogenetic inferences using partial gene regions of LSU,ITS,SSU,TEF1α,and RPB2 sequences revealed that most of these fungi belonged to Dothideomycetes and Sordariomycetes and a few were related to Eurotiomycetes.Based on the morphology and multi-gene phylogeny,we introduce four new genera,viz.Aquabispora,Neocirrenalia,Ocellisimilis and Uvarisporella,and 47 new species,viz.Acrodictys chishuiensis,A.effusa,A.pyriformis,Actinocladium aquaticum,Annulatascus tratensis,Aquabispora setosa,Aqualignicola setosa,Aquimassario-sphaeria vermiformis,Ceratosphaeria flava,Chaetosphaeria polygonalis,Conlarium muriforme,Digitodesmium chishuiense,Ellisembia aquirostrata,Fuscosporella atrobrunnea,Halobyssothecium aquifusiforme,H.caohaiense,Hongkongmyces aquisetosus,Kirschsteiniothelia dushanensis,Monilochaetes alsophilae,Mycoenterolobium macrosporum,Myrmecridium splendidum,Neohelicascus griseoflavus,Neohelicomyces denticulatus,Neohelicosporium fluviatile,Neokalmusia aquib-runnea,Neomassariosphaeria aquimucosa,Neomyrmecridium naviculare,Neospadicoides biseptata,Ocellisimilis clavata,Ophioceras thailandense,Paragaeumannomyces aquaticus,Phialoturbella aquilunata,Pleurohelicosporium hyalinum,Pseudodactylaria denticulata,P.longidenticulata,P.uniseptata,Pseudohalonectria aurantiaca,Rhamphoriopsis aquimi-crospora,Setoseptoria bambusae,Shrungabeeja fluviatilis,Sporidesmium tratense,S.versicolor,Sporoschisma atroviride,Stanjehughesia aquatica,Thysanorea amniculi,Uvarisporella aquatica and Xylolentia aseptata,with an illustrated account,discussion of their taxonomic placement and comparison with morphological similar taxa.Seven new combinations are introduced,viz.Aquabispora grandispora(≡Boerlagiomyces grandisporus),A.websteri(≡Boerlagiomyces websteri),Cer-atosphaeria suthepensis(≡Pseudohalonectria suthepensis),Gamsomyces aquaticus(≡Pseudobactrodesmium aquaticum),G.malabaricus(≡Gangliostilbe malabarica),Neocirrenalia nigrospora(≡Cirrenalia nigrospora),and Rhamphoriopsis glauca(≡Chloridium glaucum).Ten new geographical records are reported in China and Thailand and nine species are first reported from freshwater habitats.Reference specimens are provided for Diplocladiella scalaroides and Neocirrenalia nigrospora(≡Cirrenalia nigrospora).Systematic placement of the previously introduced genera Actinocladium,Aqualigni-cola,and Diplocladiella is first elucidated based on the reference specimens and new collections.Species recollected from China and Thailand are also described and illustrated.The overall trees of freshwater Dothideomycetes and Sordariomycetes collected in this study are provided respectively and genera or family/order trees are constructed for selected taxa.

Fungal diversity notes 1387-1511:taxonomic and phylogenetic contributions on genera and species of fungal taxa

This article is the 13th contribution in the Fungal Diversity Notes series,wherein 125 taxa from four phyla,ten classes,31 orders,69 families,92 genera and three genera incertae sedis are treated,demonstrating worldwide and geographic distri-bution.Fungal taxa described and illustrated in the present study include three new genera,69 new species,one new com-bination,one reference specimen and 51 new records on new hosts and new geographical distributions.Three new genera,Cylindrotorula(Torulaceae),Scolecoleotia(Leotiales genus incertae sedis)and Xenovaginatispora(Lindomycetaceae)are introduced based on distinct phylogenetic lineages and unique morphologies.Newly described species are Aspergillus lan-naensis,Cercophora dulciaquae,Cladophialophora aquatica,Coprinellus punjabensis,Cortinarius alutarius,C.mammil-latus,C.quercoflocculosus,Coryneum fagi,Cruentomycena uttarakhandina,Cryptocoryneum rosae,Cyathus uniperidiolus,Cylindrotorula indica,Diaporthe chamaeropicola,Didymella azollae,Diplodia alanphillipsii,Dothiora coronicola,Efibula rodriguezarmasiae,Erysiphe salicicola,Fusarium queenslandicum,Geastrum gorgonicum,G.hansagiense,Helicosporium sexualis,Helminthosporium chiangraiensis,Hongkongmyces kokensis,Hydrophilomyces hydraenae,Hygrocybe boertmannii,Hyphoderma australosetigerum,Hyphodontia yunnanensis,Khaleijomyces umikazeana,Laboulbenia divisa,Laboulbenia triarthronis,Laccaria populina,Lactarius pallidozonarius,Lepidosphaeria strobelii,Longipedicellata megafusiformis,Lophiotrema lincangensis,Marasmius benghalensis,M.jinfoshanensis,M.subtropicus,Mariannaea camelliae,Mel-anographium smilaxii,Microbotryum polycnemoides,Mimeomyces digitatus,Minutisphaera thailandensis,Mortierella solitaria,Mucor harpali,Nigrograna jinghongensis,Odontia huanrenensis,O.parvispina,Paraconiothyrium ajrekarii,Par-afuscosporella niloticus,Phaeocytostroma yomensis,Phaeoisaria synnematicus,Phanerochaete hainanensis,Pleopunctum thailandicum,Pleurotheciella dimorphospora,Pseudochaetosphaeronema chiangraiense,Pseudodactylaria albicolonia,Rhexoacrodictys nigrospora,Russula paravioleipes,Scolecoleotia eriocamporesi,Seriascoma honghense,Synandromyces makranczyi,Thyridaria aureobrunnea,Torula lancangjiangensis,Tubeufia longihelicospora,Wicklowia fusiformispora,Xenovaginatispora phichaiensis and Xylaria apiospora.One new combination,Pseudobactrodesmium stilboideus is pro-posed.A reference specimen of Comoclathris permunda is designated.New host or distribution records are provided for Acrocalymma fici,Aliquandostipite khaoyaiensis,Camarosporidiella laburni,Canalisporium caribense,Chaetoscutula juniperi,Chlorophyllum demangei,C.globosum,C.hortense,Cladophialophora abundans,Dendryphion hydei,Diaporthe foeniculina,D.pseudophoenicicola,D.pyracanthae,Dictyosporium pandanicola,Dyfrolomyces distoseptatus,Ernakula-mia tanakae,Eutypa flavovirens,E.lata,Favolus septatus,Fusarium atrovinosum,F.clavum,Helicosporium luteosporum,Hermatomyces nabanheensis,Hermatomyces sphaericoides,Longipedicellata aquatica,Lophiostoma caudata,L.clematidis-vitalbae,Lophiotrema hydei,L.neoarundinaria,Marasmiellus palmivorus,Megacapitula villosa,Micropsalliota globocys-tis,M.gracilis,Montagnula thailandica,Neohelicosporium irregulare,N.parisporum,Paradictyoarthrinium diffractum,Phaeoisaria aquatica,Poaceascoma taiwanense,Saproamanita manicata,Spegazzinia camelliae,Submersispora variabi-lis,Thyronectria caudata,T.mackenziei,Tubeufia chiangmaiensis,T.roseohelicospora,Vaginatispora nypae,Wicklowia submersa,Xanthagaricus necopinatus and Xylaria haemorrhoidalis.The data presented herein are based on morphological examination of fresh specimens,coupled with analysis of phylogenetic sequence data to better integrate taxa into appropriate taxonomic ranks and infer their evolutionary relationships.

Freshwater fungal number

A comprehensive account of fungal classification from freshwater habitats is outlined and discussed in the present review based on literature of biodiversity studies and recent morpho-phylogenetic analyses.A total of 3,870 freshwater fungal species are listed with additional details on the isolation source,habitat,geographical distribution,and molecular data.The Ascomycota(2,968 species,1,018 genera)dominated the freshwater fungal taxa wherein Sordariomycetes(823 species,298 genera)had the largest number,followed by Dothideomycetes(677 species,229 genera),Eurotiomycetes(276 species,49 genera),and Leotiomycetes(260 species,83 genera).Other phyla included in the updated classification of freshwater fungi are:Chytridiomycota(333 species,97 genera),Rozellomycota(221 species,105 genera),Basidiomycota(218 species,100 genera),Blastocladiomycota(47 species,10 genera),Monoblepharomycota(29 species,6 genera),Mucoromycota(19 spe-cies,10 genera),Aphelidiomycota(15 species,3 genera),Entomophthoromycota(6 species,4 genera),Mortierellomycota(5 species,3 genera),Olpidiomycota(4 species,1 genus),Zoopagomycota(3 species,2 genera),and Sanchytriomycota(2 species,2 genera).The freshwater fungi belong to 1,361 genera,386 families and 145 orders.The Pleosporales and Laboulbeniaceae are the largest freshwater fungal order and family comprised of 391 and 185 species,respectively.The most speciose genera are Chitonomyces(87,Laboulbeniomycetes),Verrucaria(50,Eurotiomycetes),Rhizophydium(52,Rhizophydiomycetes),Penicillium(47,Eurotiomycetes),and Candida(42,Saccharomycetes).