Neohelicosporium fusisporum sp.nov.(Tubeufiaceae)and a first record of a sexual morph within Neohelicosporium

Both sexual and asexual morphs(holomorph)are known in several genera of Tubeufiaceae whereas in others,mainly the asexual or rarely the sexual morph is known.The genus Neohelicosporium is known only by its asexual morph,we have recently collected the sexual morph of the genus,which is characterized by fleshy,superficial ascomata,bitunicate asci,and hyaline to pale brown,fusiform ascospores.Analyses of combined ITS,LSU and tef1 sequence data placed the taxon in Neohelicosporium.In this paper,we introduce the new taxon N.fusisporum based on both morphological characteristics and phylogenetic data.

Saprobic Dothideomycetes in Thailand:Muritestudina gen.et sp.nov.(Testudinaceae)a new terrestrial pleosporalean ascomycete,with hyaline and muriform ascospores

The family Testudinaceae and its intergeneric classification are poorly understood.This is due to overlap of morphological characteristics in genera and lack of DNA sequence data to infer phylogenetic relationships.The main objective of the present paper is to establish a novel genus,Muritestudina,based on distinct morphological characteristics and analyses of combined LSU,SSU,ITS,rpb2 and tef1 sequence data.We also fill the gap of our current knowledge on the phylogenetic position of Testudinaceae.Based on the morphological characteristics of species representing existing genera of Testudinaceae,we herein introduce a new genus,Muritestudina with M.chiangraiensis as the type species.The new genus is characterized by globose to subglobose,ostiolate ascomata;a peridium of brown to dark-brown cells of textura angularis;septate and cellular pseudoparaphyses;cylindric-clavate asci with a distinct pedicel;and hyaline,ellipsoidal and muriform ascospores.The new genus differs from the other genera in Testudinaceae in having hyaline,muriform ascospores.Combined analyses of ribosomal and protein coding gene sequence data confirmed that our new taxon belongs in Testudinaceae with a close relationship with Neotestudina rosatii.

Taxonomic circumscription and phylogenetics of novel didymellaceous taxa with brown muriform spores

Sexual morph of didymellaceous taxa are characterized by their ascomata with relatively thin peridium,cylindric-clavate to clavate,short-pedicellate or apedicellate asci,hyaline to brown,1-septate to muriform ascospores.Its asexual morphs are coelomycetous and comprising pycnidial or acervulus conidiomata,phialidic,hyaline conidiogenous cells and hyaline or pale brown,septate or aseptate conidia.The majority of these cosmopolitan species are plant associated fungi which can be pathogens on a wide range of hosts and some species are of particular relevance for quarantine measures.Recent studies have significantly improved the taxonomy and systematics of didymellaceous taxa based on molecular phylogenetics.In contrast to the accurate and detailed studies on the asexual morphs which are common obligate pathogens,information on their usually saprobic sexual morphs is still limited.Among these phenotypically diverse species,spore characteristics are quite unique as most have hyaline spores with 0-1 septum,while only Neomicrosphaeropsis and Didymellocamarosporium are reported as producing pigmented,muriform spores.These dematiaceous muriform spores are characteristic of a considerable number of species that may be quite divergent in other characters.During taxonomic investigations on the diversity of didymellaceous taxa,we have isolated species from Alhagi pseudalhagi,Coronilla emerus,Cytisus sp.,Elaeagnus angustifolia and Spartium junceum in Italy,Russia and Uzbekistan.A comprehensive phylogeny,based on four loci(ITS,LSU,rpb2 and tub2)is used to infer species relationships.Comprehensive morphological descriptions and in-depth phylogenetic investigations of five new species viz.Ascochyta coronillae-emeri,Microsphaeropsis spartii-juncei,Neomicrosphaeropsis alhagi-pseudalhagi,N.cytisicola and N.elaeagni are presented.

Taxonomic monograph of epifoliar fungi

Epifoliar fungi are one of the significant fungal groups typically living on the surface of leaves. They are usually recordedas saprobes, obligate parasites and commensals and are widely distributed in tropical and subtropical regions. Numerousgenera within this group remain inadequately understood, primarily attributed to limited taxonomic knowledge and insufficientmolecular data. Furthermore, the taxonomic delineation of epifoliar fungi remained uncertain, with scattered andliterature-based data often intermixed with other follicolous fungi. Herein, a comprehensive taxonomic monograph of 124genera in (32) Asterinales, (18) Capnodiales, (15) Chaetothyriales, (8) Meliolales, (8) Micropeltidales, (10) Microthyriales,(32) Parmulariales and (1) Zeloasperisporiales was provided re-describing with illustrations and line drawings. Notes onecological and economic importance of the families are also provided. Representatives type herbarium materials of Campoapulcherrima, Cycloschizon brachylaenae, Ferrarisia philippina, Hysterostomella guaranitica, Palawaniella orbiculata andPseudolembosia orbicularis of Parmulariaceae were re-examined and provided updated illustrations with descriptions. Abackbone phylogenetic tree and divergence estimation analysis for epifoliar fungi based on LSU and 5.8s ITS sequence dataare provided.

Fungal diversity notes 709–839: taxonomic and phylogenetic contributions to fungal taxa with an emphasis on fungi on Rosaceae

This paper is the seventh in the Fungal Diversity Notes series,where 131 taxa accommodated in 28 families are mainly described from Rosa(Rosaceae)and a few other hosts.Novel fungal taxa are described in the present study,including 17 new genera,93 new species,four combinations,a sexual record for a species and new host records for 16 species.Bhatiellae,Cycasicola,Dactylidina,Embarria,Hawksworthiana,Italica,Melanocucurbitaria,Melanodiplodia,Monoseptella,Uzbekistanica,Neoconiothyrium,Neopaucispora,Pararoussoella,Paraxylaria,Marjia,Sporormurispora and Xenomassariosphaeria are introduced as new ascomycete genera.We also introduce the new species Absidia jindoensis,Alternaria doliconidium,A.hampshirensis,Angustimassarina rosarum,Astragalicola vasilyevae,Backusella locustae,Bartalinia rosicola,Bhatiellae rosae,Broomella rosae,Castanediella camelliae,Coelodictyosporium rosarum,Comoclathris rosae,C.rosarum,Comoclathris rosigena,Coniochaeta baysunika,C.rosae,Cycasicola goaensis,Dactylidina shoemakeri,Dematiopleospora donetzica,D.rosicola,D.salsolae,Diaporthe rosae,D.rosicola,Endoconidioma rosaehissaricae,Epicoccum rosae,Hawksworthiana clematidicola,H.lonicerae,Italica achilleae,Keissleriella phragmiticola,K.rosacearum,K.rosae,K.rosarum,Lophiostoma rosae,Marjia tianschanica,M.uzbekistanica,Melanocucurbitaria uzbekistanica,Melanodiplodia tianschanica,Monoseptella rosae,Mucor fluvius,Muriformistrickeria rosae,Murilentithecium rosae,Neoascochyta rosicola,Neoconiothyrium rosae,Neopaucispora rosaecae,Neosetophoma rosarum,N.rosae,N.rosigena,Neostagonospora artemisiae,Ophiobolus artemisiicola,Paraconiothyrium rosae,Paraphaeosphaeria rosae,P.rosicola,Pararoussoella rosarum,Parathyridaria rosae,Paraxylaria rosacearum,Penicillium acidum,P.aquaticum,Phragmocamarosporium rosae,Pleospora rosae,P.rosae-caninae,Poaceicola agrostina,P.arundinicola,P.rosae,Populocrescentia ammophilae,P.rosae,Pseudocamarosporium pteleae,P.ulmi-minoris,Pseudocercospora rosae,Pseudopithomyces rosae,Pseudostrickeria rosae,Sclerostagonospora lathyri,S.rosae,S.rosicola,Seimatosporium rosigenum,S.rosicola,Seiridium rosarum,Setoseptoria arundelensis,S.englandensis,S.lulworthcovensis,Sigarispora agrostidis,S.caryophyllacearum,S.junci,S.medicaginicola,S.rosicola,S.scrophulariae,S.thymi,Sporormurispora atraphaxidis,S.pruni,Suttonomyces rosae,Umbelopsis sinsidoensis,Uzbekistanica rosaehissaricae,U.yakutkhanika,Wojnowicia rosicola,Xenomassariosphaeria rosae.New host records are provided for Amandinea punctata,Angustimassarina quercicola,Diaporthe rhusicola,D.eres,D.foeniculina,D.rudis,Diplodia seriata,Dothiorella iberica,Lasiodiplodia theobromae,Lecidella elaeochroma,Muriformistrickeria rubi,Neofusicoccum australe,Paraphaeosphaeria michotii,Pleurophoma pleurospora,Sigarispora caulium and Teichospora rubriostiolata.The new combinations are Dactylidina dactylidis(=Allophaeosphaeria dactylidis),Embarria clematidis(=Allophaeosphaeria clematidis),Hawksworthiana alliariae(=Dematiopleospora alliariae)and Italica luzulae(=Dematiopleospora luzulae).This study also provides some insights into the diversity of fungi on Rosa species and especially those on Rosa spines that resulted in the characterisation of eight new genera,45 new species,and nine new host records.We also collected taxa from Rosa stems and there was 31%(20/65)overlap with taxa found on stems with that on spines.Because of the limited and non-targeted sampling for comparison with collections from spines and stems of the same host and location,it is not possible to say that the fungi on spines of Rosa differ from those on stems.The study however,does illustrate how spines are interesting substrates with high fungal biodiversity.This may be because of their hard structure resulting in slow decay and hence are suitable substrates leading to fungal colonisation.All data presented herein are based on morphological examination of specimens,coupled with phylogenetic sequence data to better integrate taxa into appropriate taxonomic ranks and infer their evolutionary relationships.

Refined families of Dothideomycetes:orders and families incertae sedis in Dothideomycetes

Numerous new taxa and classifications of Dothideomycetes have been published following the last monograph of families of Dothideomycetes in 2013.A recent publication by Honsanan et al.in 2020 expanded information of families in Dothideo-mycetidae and Pleosporomycetidae with modern classifications.In this paper,we provide a refined updated document on orders and families incertae sedis of Dothideomycetes.Each family is provided with an updated description,notes,including figures to represent the morphology,a list of accepted genera,and economic and ecological significances.We also provide phylogenetic trees for each order.In this study,31 orders which consist 50 families are assigned as orders incertae sedis in Dothideomycetes,and 41 families are treated as families incertae sedis due to lack of molecular or morphological evidence.The new order,Catinellales,and four new families,Catinellaceae,Morenoinaceae Neobuelliellaceae and Thyrinulaceae are introduced.Seven genera(Neobuelliella,Pseudomicrothyrium,Flagellostrigula,Swinscowia,Macroconstrictolumina,Pseudobogoriella,and Schummia)are introduced.Seven new species(Acrospermum urticae,Bogoriella complexoluminata,Dothiorella ostryae,Dyfrolomyces distoseptatus,Macroconstrictolumina megalateralis,Patellaria microspora,and Pseu-domicrothyrium thailandicum)are introduced base on morphology and phylogeny,together with two new records/reports and five new collections from different families.Ninety new combinations are also provided in this paper.