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China has a huge area of diverse landscapes and is believed to conceive incredibly high fungal diversity. To systematically and promptly report Chinese fungal species, we initiate the series of Catalogue of fungi in China here. In the first paper of this series, we focus on plant-inhabiting fungi. A total of 33 new taxa are described all over China. These taxa include two new genera, viz. Cremeoefibula and Nothopucciniastrum, 18 new species, viz. Annulohypoxylon lancangensis, Ascotaiwania coffeae, Clitocella neofallax, Coleopuccinia yunnanensis, Cremeoefibula hengduanensis, Crepidotus furcaticystidiosus, C. tomentellus, Diachea macroverrucosa, Helicogloea hangzhouensis, Hyalopsora caprearum, Nemania polymorpha, Phanerochaetella austrosinensis, Physalacria tianzhongshanensis, Setophaeosphaeria panlongensis, Subulicystidium boreale, Trechispora subaraneosa, Vikalpa dujuanhuensis, and Xylaria pteridicola, and 13 new combinations, viz. Nothopucciniastrum actinidiae, N. boehmeriae, N. coriariae, N. corni, N. coryli, N. fagi, N. kusanoi, N. hikosanense, N. hydrangeae-petiolaris, N. miyabeanum, N. styracinum, N. tiliae, and N. yoshinagae. The morphological characteristics and phylogenetic evidence are used to support the establishment of these new taxa and the accuracy of their taxonomic placements. We hope that the series of Catalogue of fungi in China will contribute to Chinese fungal diversity and promote the significance of recording new fungal taxa from China. [ABSTRACT FROM AUTHOR]

Background: Based on unique morphological features and phylogenetic analysis of combined LSU and ITS sequences, Paramirandinaguttulata is established as the third species in Paramirandina , along with P.aquatica and P.cymbiformis . All three species of Paramirandina were reported from freshwater habitats in China., New Information: Paramirandinaguttulata sp. nov. is a morphologically conspicuous hyphomycetes species, collected from a plateau lake (Dujuanhu Lake) in Yunnan Province, China. The key distinguishing characteristics of P.guttulata are scattered or gregarious conidiophores, polyblastic, terminal, sympodial conidiogenous cells and fusiform, cymbiform, 4-6-septate, guttulate, hyaline conidia that are solitary or in chains and with truncate base and obtuse apex. Detailed descriptions and illustrations are provided for the new species., (Hong-Wei Shen, Dan-Feng Bao, Na Wu, Fatimah Al-Otibi, Zong-Long Luo, Kevin D. Hyde.)

Two new species Laccariapseudoalba and L.subroseoalbescens are described and illustrated, based on morphological characteristics and molecular phylogenetic analysis. Two new records, Laccariaumbilicata and L.yunnanensis from Thailand, are also reported. Laccariasubroseoalbescens is characterized by small basidiomata, stipe equal with an enlarged base, and nearly subclavate, pale pink to light orange. Laccariapseudoalba is characterized by pale orange to orange white pileus, has umbo when young on the pileus, and fistulose stipe of the pale to pastel red color. Phylogenetic analysis based on sequence data from rDNA internal transcribed spacer ITS1-5.8S-ITS2 rDNA (ITS), nuc 28S rDNA (28S), RNA polymerase II subunit 2 (rpb2), and translation elongation factor 1-α (tef1-α) are provided as further evidence. Molecular analysis confirms the phylogenetic positions of the two new species and two new records. The differences in characteristics of these two new species and closely related species are discussed herein., Competing Interests: The authors have declared that no competing interests exist., (Song-Ming Tang, Santhiti Vadthanarat, Bhavesh Raghoonundon, Zong-Long Luo, Xin-Yu Zhu, Feng-Ming Yu, Jun He, Shu-Hong Li.)

The Red River Basin is located in the Indo-Burma biodiversity hotspot and is rich in lignicolous freshwater fungi, but no systematic research has been conducted. A systematic study on the species diversity of lignicolous freshwater fungi in the basin is ongoing. Seven distoseptispora-like specimens were collected from the Red River Basin in Yunnan. Phylogenetic analysis of ITS, LSU, tef 1-α, and rpb 2 genes and combined morphological data indicate that there are six distinct species of Distoseptispora , including two new species and four known species. Two new species were named D.suae and D.xinpingensis , and the four known species were D.bambusae , D.euseptata , D.obpyriformis and D.pachyconidia . This study provides detailed descriptions and illustrations of these six species and an updated phylogenetic backbone tree of Distoseptispora ., Competing Interests: The authors have declared that no competing interests exist., (Hong-Wei Shen, Dan-Feng Bao, Saranyaphat Boonmee, Yong-Zhong Lu, Xi-Jun Su, Yun-Xia Li, Zong-Long Luo.)

Background: Geastrum is the largest genus of Geastraceae and is widely distributed all over the world. Four specimens which belong to Geastrum were collected during our scientific expedition to Cangshan Mountain, Yunnan, China. Based on morphological characteristics and phylogenetic analysis, a new species was introduced., New Information: Geastrumsuae is characterised by its large basidiomata (height 35-70 mm, diameter 18-37 mm) with long stipe (height 10-45 mm), smooth pink exoperidium and sessile globose endoperidial body. Phylogenetic analysis has been carried out, based on the internal transcribed spacer (ITS) and large subunit ribosomal ribonucleic acid (nrLSU) sequence data. The illustration and description for the new taxa are provided., (Zheng-Quan Zhang, Chao-Hai Li, Lin Li, Hong-Wei Shen, Jun He, Xi-Jun Su, Zong-Long Luo.)

During the study of lignicolous freshwater fungi from Thailand, three pleurotheciaceous species were collected from freshwater habitats in Thailand. Two were identified as Pleurotheciumaquaticum and Rhexoacrodictysfimicola , and the third is a new species Dematipyriformamuriformis sp. nov.. Rhexoacrodictys is accepted in Pleurotheciaceae based on phylogenetic analysis. Rhexoacrodictysnigrospora is transferred to Dematipyriforma based on phylogenetic analysis and morphological characters. Pleurotheciumaquaticum and Rhexoacrodictysfimicola are reported from Thailand for the first time., (Dan-Feng Bao, Darbhe J. Bhat, Saranyaphat Boonmee, Kevin D. Hyde, Zong-Long Luo, Sarunya Nalumpang.)

Background: In this study, a new species Neomonodictysaquatica was collected from submerged decaying wood in Erhai Lake, Yunnan Province, China., New Information: Neomonodictysaquatica is characterised by acrogenous, solitary, oval, dictyospores (most are transverse septum, occasionally vertical septum, in immaturity the septum is clear, but when mature, the conidia becomes darker so the septum is not clear), smooth-walled conidia. The immature conidia are usually hyaline to olivaceous and mature conidia are usually darkened to black, sometimes with one pale basal cell. Phylogenetic analyses of combined ITS and LSU sequence data showed that the new collection is distinct from other Neomonodictys species. Description and illustration are provided as well., (Si-Ping Huang, Dan-Feng Bao, Hong-Wei Shen, Hong-Yan Su, Zong-Long Luo.)

Background: During the survey of pathogenic fungi on medicinal plant leaves in Yunnan Province, China, two Cladosporium -like taxa were isolated from leaf spots of Parispolyphylla . Based on morphological characteristics and phylogenetic analysis of combined ITS, TEF1-α and ACT genes, two new species were discovered., New Information: Two new species Cladosporiumyunnanensis and C.paris are introduced, the detailed descriptions and illustrations are provided. Morphology of the two new species is compared with other related Cladosporium species. This study widens the host diversity of the genus Cladosporium ., (Yue-Xin Xu, Hong-Wei Shen, Dan-Feng Bao, Zong-Long Luo, Hong-Yan Su, Yu-E Hao.)

Background: Pleosporales 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 Information: The 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., (Xi Fu, Dan-Feng Bao, Zong-Long Luo, Xiu He, Hong-Yan Su.)