A review of bambusicolous Ascomycota in China with an emphasis on species richness in southwest China

Bamboos not only provide socio-economic benefits to communities within the region,but also provide ecosystem services such as soil-water conservation,stabilization of sandy soils and restoration of soil nutrients.Bambusicolous ascomycetes refer to ascomycetous fungi living on any substrate of bamboo.As the largest group of fungi on bamboo,they play a significant ecological value in species composition and the structure of the fungal community,circulation of materials and energy flow of nutritional elements.In an effort to document the bambusicolous Ascomycota found in China,we assessed all major sources of academic literature,journal papers,and the USDA database(https://nt.ars-grin.gov/fungaldatabases/fungushost/fungushost.cfm)for reports of these fungi from China.As a result,we produced a systematic and comprehensive checklist of bambusicolous Ascomycota in China.Current names of fungi,bamboo host name,bamboo substrate,details of collected localities,references and latest classification for every bambusicolous ascomycete in China are also provided.In addition,we focused on the species richness of bambusicolous Ascomycota in China with an emphasis on southwest China.

Fungal diversity notes 1–110:taxonomic and phylogenetic contributions to fungal species

This paper is a compilation of notes on 110 fungal taxa,including one new family,10 new genera,and 76 new species,representing a wide taxonomic and geographic range.The new family,Paradictyoarthriniaceae is introduced based on its distinct lineage in Dothideomycetes and its unique morphology.The family is sister to Biatriosporaceae and Roussoellaceae.The new genera are Allophaeosphaeria(Phaeosphaeriaceae),Amphibambusa(Amphisphaeriaceae),Brunneomycosphaerella(Capnodiales genera incertae cedis),Chaetocapnodium(Capnodiaceae),Flammeascoma(Anteagloniaceae),Multiseptospora(Pleosporales genera incertae cedis),Neogaeumannomyces(Magnaporthaceae),Palmiascoma(Bambusicolaceae),Paralecia(Squamarinaceae)and Sarimanas(Melanommataceae).The newly described species are the Ascomycota Aliquandostipite manochii,Allophaeosphaeria dactylidis,A.muriformia,Alternaria cesenica,Amphibambusa bambusicola,Amphisphaeria sorbi,Annulohypoxylon thailandicum,Atrotorquata spartii,Brunneomycosphaerella laburni,Byssosphaeria musae,Camarosporium aborescentis,C.aureum,C.frutexensis,Chaetocapnodium siamensis,Chaetothyrium agathis,Colletotrichum sedi,Conicomyces pseudotransvaalensis,Cytospora berberidis,C.sibiraeae,Diaporthe thunbergiicola,Diatrype palmicola,Dictyosporium aquaticum,D.meiosporum,D.thailandicum,Didymella cirsii,Dinemasporium nelloi,Flammeascoma bambusae,Kalmusia italica,K.spartii,Keissleriella sparticola,Lauriomyces synnematicus,Leptosphaeria ebuli,Lophiostoma pseudodictyosporium,L.ravennicum,Lophiotrema eburnoides,Montagnula graminicola,Multiseptospora thailandica,Myrothecium macrosporum,Natantispora unipolaris,Neogaeumannomyces bambusicola,Neosetophoma clematidis,N.italica,Oxydothis atypica,Palmiascoma gregariascomum,Paraconiothyrium nelloi,P.thysanolaenae,Paradictyoarthrinium tectonicola,Paralecia pratorum,Paraphaeosphaeria spartii,Pestalotiopsis digitalis,P.dracontomelon,P.italiana,Phaeoisaria pseudoclematidis,Phragmocapnias philippinensis,Pseudocamarosporium cotinae,Pseudocercospora tamarindi,Pseudotrichia rubriostiolata,P.thailandica,Psiloglonium multiseptatum,Saagaromyces mangrovei,Sarimanas pseudofluviatile,S.shirakamiense,Tothia spartii,Trichomerium siamensis,Wojnowicia dactylidicola,W.dactylidis and W.lonicerae.The Basidiomycota Agaricus flavicentrus,A.hanthanaensis,A.parvibicolor,A.sodalis,Cantharellus luteostipitatus,Lactarius atrobrunneus,L.politus,Phylloporia dependens and Russula cortinarioides are also introduced.Epitypifications or reference specimens are designated for Hapalocystis berkeleyi,Meliola tamarindi,Pallidocercospora acaciigena,Phaeosphaeria musae,Plenodomus agnitus,Psiloglonium colihuae,P.sasicola and Zasmidium musae while notes and/or new sequence data are provided for Annulohypoxylon leptascum,A.nitens,A.stygium,Biscogniauxia marginata,Fasciatispora nypae,Hypoxylon fendleri,H.monticulosum,Leptosphaeria doliolum,Microsphaeropsis olivacea,Neomicrothyrium,Paraleptosphaeria nitschkei,Phoma medicaginis and Saccotheciaceae.A full description of each species is provided with light micrographs(or drawings).Molecular data is provided for 90 taxa and used to generate phylogenetic trees to establish a natural classification for species.

Towards a natural classification of Astrosphaeriella-like species;introducing Astrosphaeriellaceae and Pseudoastrosphaeriellaceae fam.nov.and Astrosphaeriellopsis,gen.nov.

Astrosphaeriella sensu lato is a common genus occurring on bamboo,palms and stout grasses.Species of Astrosphaeriella have been collected from various countries in tropical,subtropical or temperate regions.In Asia,species have been collected in Brunei,China,Indonesia,Japan,Philippines and Vietnam.There have been several morphological studies on Astrosphaeriella,but molecular work and phylogenetic analyses are generally lacking.Taxa included in Astrosphaeriella were characterized in three main groups 1)typical Astrosphaeriella species(sensu stricto)having carbonaceous,erumpent,conical ascostromata 2)atypical Astrosphaeriella species(sensu lato)having immersed,coriaceous ascostromata with short to long papilla and 3)lophiostoma-like species having immersed ascostromata with slit-like openings.Some of the latter Astrosphaeriella species,having slit-like openings,have been transferred to Fissuroma and Rimora in Aigialaceae.In this study five type specimens of Astrosphaeriella were loaned from herbaria worldwide and re-examined and are re-described and illustrated.Collections of Astrosphaeriella were also made in Thailand and morphologically examined.Pure cultures were obtained from single spores and used in molecular studies.The asexual morph was induced on sterile bamboo pieces placed on water agar.Phylogenetic analyses of combined LSU,SSU and TEF1 sequence data of astrosphaeriella-like species using Bayesian,Maximum parsimony(MP)and Randomized Accelerated Maximum Likelihood(RAxML)analyses were carried out.Phylogenetic analyses show that species of Astrosphaeriella can be distinguished in at least three families.Species of Astrosphaeriella sensu stricto with erumpent,carbonaceous ascostromata,form a strongly supported clade with Pteridiospora species and a new family,Astrosphaeriellaceae,is introduced to accommodate these taxa.The genera are revised and Astrosphaeriella bambusae,A.neofusispora,A.neostellata,A.thailandica,A.thysanolaenae and Pteridiospora chiangraiensis are introduced as new species.Astrosphaeriella exorrhiza is reported on a dead stem of Thysanolaena maxima and is the first record for Thailand.Reference specimens for A.fusispora and A.tornata are designated to stabilize the taxonomy of Astrosphaeriella.The coelomycetous asexual morph of A.bambusae is reported and forms hyaline,globose to subglobose,aseptate conidia.Species of Astrosphaeriella sensu lato with immersed,coriaceous ascostromata,with short to long papilla and striate ascospores,form a sister clade with Tetraplosphaeriaceae.The genus Pseudoastrosphaeriella is introduced to accommodate some of these taxa with three new species and three new combinations,viz.P.aequatoriensis,P.africana,P.bambusae,P.longicolla,P.papillata and P.thailandensis.A new family Pseudoastrosphaeriellaceae is introduced to accommodate this presently monotypic lineage comprising Pseudoastrosphaeriella.The asexual morph of P.thailandensis is described.Astrosphaeriella bakeriana forms a distinct clade basal to Aigialaceae.Astrosphaeriella bakeriana is excluded from Astrosphaeriella and a new genus Astrosphaeriellopsis,placed in Dothideomycetes genera incertae sedis,is introduced to accommodate this taxon.Fissuroma aggregata(Aigialaceae)is re-visited and is shown to be a cryptic species.Three new species of Fissuroma and a new combination are introduced based on morphology and phylogeny viz.F.bambusae,F.fissuristoma,F.neoaggregata and F.thailandicum.The asexual morph of Fissuroma bambusae is also reported.

Microfungi on Tamarix

Tamarix species are small trees that grow in various natural habitats and have a wide geographic distribution.Microfungal species previously found on Tamarix and recently collected in Italy and Russia were identified based on morphological characters and analyses of gene sequence data.The sexual morph of the coelomycetous genus Homortomyces was collected for the first time and is described and illustrated.A new family,Homortomycetaceae(Dothideomycetes,families incertae sedis)is introduced to accommodate Homortomyces.Two new genera Neomicrosphaeropsis(Didymellaceae)and Tamaricicola(Pleosporaceae)are introduced in this paper.Phoma tamaricicola was recollected and is placed in Neomicrosphaeropsis based on morphology and molecular data.Ten new species,Cytospora italica,C.unilocularis,Diaporthe ravennica,Eutypella tamaricis,Neomicrosphaeropsis italica,N.novorossica,N.rossica,Keissleriella tamaricicola,Paracamarosporium tamaricis and Tamaricicola muriformis are introduced,while Alternaria tenuissima,Dothiorella sarmentorum,Neofusicoccum luteum,Paraepicoccum amazonense,Pleospora herbarum and Pseudocamarosporium propinquum are reported for the first time on Tamarix spp.with descriptions and illustrations.Multi-gene analyses show that Paraepicoccum amazonense should be placed in Pleosporineae,Pleosporales,where it is closely related to Camarosporium sensu stricto.Several herbarium specimens were studied to illustrate other fungal species recorded on Tamarix species.A comprehensive account of microfungi on Tamarix is provided,which includes a list with data from the literature,as well as those identified in the present study.The taxonomic placement of most taxa discussed in this study is based on a modern taxonomic framework based on analysis of multi-gene sequence data.

Phylogenetic relationships and morphological reappraisal of Melanommataceae(Pleosporales)

The family Melanommataceae is widespread in temperate and subtropical regions and species invariably occur on twigs or bark of various woody plants in terrestrial,marine or freshwater habitats.In this paper,the type species of 26 genera of the family are re-described and illustrated.A multi-gene phylogeny based on maximum likelihood and Bayesian analyses of LSU,SSU,RPB2 and EF-1αsequence data of species of Melanommataceae is provided.The new genera,Muriformistrickeria,Pseudostrickeria and Thysanolaenae are introduced.Anomalemma is synonymized under Exosporiella.Acrocordiopsis,Astrosphaeriella,Beverwykella,Caryosporella,Sporidesmiella and Pseudotrichia are excluded from Melanommataceae based on molecular phylogenetic analyses.Presently,20 genera are accepted in Melanommataceae.Based on the phylogenetic data,five new species,Byssosphaeria siamensis,Herpotrichia vaginatispora,Pseudostrickeria muriformis,Pseudostrickeria ononidis and Muriformistrickeria rubi,are introduced.

Dictyosporiaceae fam.nov.

Dictyosporiaceae fam.nov.is introduced to accommodate a holomorphic group of Dothideomycetes that are saprobes on decaying wood and plant debris in terrestrial and freshwater habitats.The sexual morph comprises Dictyosporium meiosporum,D.sexualis,Gregarithecium curvisporum,Pseudocoleophoma calamagrostidis and P.polygonicola.The sexual morphs are characterized by immersed to erumpent,superficial,globose to subglobose,dark brown to black ascomata,bitunicate asci,and septate,hyaline,sheathed ascospores.The asexual morphs are hyphomycetous with brown,multi-septate,cheirosporous conidia,produced from holoblastic conidiogenous cells,on micronematous conidiophores.Phylogenetic analyses of LSU,SSU and TEF1 sequence data place the genera with cheirospores in a monophyletic clade in the order Pleosporales.Phylogenetic analyses based on ITS sequence data show the family to comprise 44 distinct lineages that correspond to ten genera and an undetermined genus.Four new genera Dictyocheirospora,Dictyopalmispora,Jalapriya and Vikalpa,and eight new species Dictyocheirospora bannica,D.rotunda,D.vinaya,Dictyopalmispora palmae,Dictyosporium olivaceosporum,D.sexualis,Jalapriya pulchra,and Vikalpa lignicola,are introduced in the family.