Browsing by Author "Soumyadeep Rajwar"

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Addition of two new genera—Marcstadlera gen. nov. and Neoclypeosphaerella gen. nov. (Mycosphaerellaceae)—based on polyphasic evidence
(Frontiers Media SA, 2025) Gargee Singh; Soumyadeep Rajwar; Sahana Khatoon; S. Yadav; Pooja Kumari; Raghvendra Singh; Kamalesh Kumar; Smriti Mall; Paras Nath Singh; S. Saran Kumar; Uwe Braun
During a survey of foliicolous fungi in India, two interesting anamorphic hyphomycetous fungal specimens were collected from infected leaves of Calotropis spp. and Mallotus philippensis. Calotropis spp. produce fascicles of conidiophores from stromata, accompanied by secondary superficial hyphae bearing solitary conidiophores. The specimen on Mallotus philippensis resembled Mycovellosiella, characterized by secondary superficial hyphae bearing micronematous to semi-macronematous, mononematous, unbranched, and aseptate conidiophores. A polyphasic approach—including morphological, cultural, and multilocus phylogenetic analyses (LSU-Rpb2-ITS), coupled with genealogical concordance phylogenetic species recognition—identified its relationship with cercosporoid fungi within the family Mycosphaerellaceae. The analysis confirmed that these fungal specimens represent distinct lineages without known morphological or DNA sequence counterparts. Consequently, two new genera are proposed: Marcstadlera and Neoclypeosphaerella, with M. malloti comb. nov. and N. calotropidis comb. nov. as their respective type species. Additionally, Clypeosphaerella calotropidis, Clypeosphaerella quasiparkii, and Pseudocercospora malloti are recognized as new synonyms. Several genera in the Mycosphaerellaceae, including Marcstadlera and Neoclypeosphaerella, are monophyletic. The ultrastructure of the conidiogenous loci and hila differs between these two genera. In Marcstadlera, the loci are cylindrical or peg-like, truncate at the apex, while the conidial base is narrowly obconically truncate. In Neoclypeosphaerella, the loci are slightly protuberant and surrounded by a circular rim-like structure, forming a truncated apex with a centrally positioned small apical depression. The conidial base is obconically truncated and also surrounded by a circular rim-like structure. © © 2025 Singh, Rajwar, Khatoon, Yadav, Kumari, Singh, Kumar, Mall, Singh, Kumar and Braun.
Fungal diversity notes 1818–1918: taxonomic and phylogenetic contributions on genera and species of fungi
(Springer Nature, 2024) Ishara S. Manawasinghe; Kevin D. Hyde; Dhanushka N. Wanasinghe; Samantha C. Karunarathna; Sajeewa S. N. Maharachchikumbura; Milan C. Samarakoon; Hermann Voglmayr; Ka-Lai Pang; Michael Wai-Lun Chiang; E. B. Gareth Jones; Ramesh K. Saxena; Arun Kumar; Kunhiraman C. Rajeshkumar; Laura Selbmann; Claudia Coleine; Yuwei Hu; A. Martyn Ainsworth; Kare Liimatainen; Tuula Niskanen; Anna Ralaiveloarisoa; Elangovan Arumugam; Kezhocuyi Kezo; Malarvizhi Kaliyaperumal; Sugantha Gunaseelan; Asha J. Dissanayake; Abdul Nasir Khalid; Achala Jeevani Gajanayake; Adam Flakus; Alireza Armand; André Aptroot; Andre Rodrigues; Andrei Tsurykau; Ángela López-Villalba; Antonio Roberto Gomes de Farias; Antonio Sánchez; Aristóteles Góes-Neto; Bruno T. Goto; Carlos A. F. de Souza; Charuwan Chuaseeharonnachai; Chuan-Gen Lin; Cuijinyi Li; Cvetomir M. Denchev; Daniel Guerra-Mateo; Danushka S. Tennakoon; De-Ping Wei; Dominik Begerow; Eduardo Alves; Elisandro Ricardo Drechsler-Santos; Enayra Silva Sousa; Erika Valente de Medeiros; Ewald Langer; Fa Zhang; Francisco A. de Souza; Franco Magurno; Gabriel G. Barreto; Gabriel Moreno; Gajanan Mane; Genivaldo Alves-Silva; Gladstone Alves da Silva; Guiyang Xia; Hong-Wei Shen; Heng Gui; Indunil C. Senanayake; Janet Jennifer Luangsa-ard; Jia-Wei Liu; Jian-Kui Liu; Jian Ma; Jie-Ying Lin; José Evando Aguiar Beserra Jr; Jose F. Cano-Lira; Josepa Gené; Kuniyil Harikrishnan; Li Lu; Lidiane A. dos Santos; Lijian Xu; Lorena T. Lacerda; Luís F. P. Gusmão; Marcela E. S. Cáceres; Marcos Paz Saraiva Câmara; Maria B. B. de Barros-Barreto; Mark S. Calabon; Martin Kukwa; Martin Kemler; Maruzanete Pereira de Melo; Masoomeh Ghobad-Nejhad; Mei Luo; Mengmeng Ding; Mingkwan Doilom; Monthien Phonemany; Muhammad Usman; Naritsada Thongklang; Nattawut Boonyuen; Nikhil Ashtekar; Nuwan D. Kularathnage; Onden P. Sruthi; Papichaya Kwantong; Parayelil A. Ansil; Pepijn W. Kooij; Qi Zhao; Rafael Ferreira Alfenas; Rafael J. V. de Oliveira; Raghvendra Singh; Rejane Maria Ferreira da Silva; Rameshwar Avchar; Rashmi Morey; Rohit Sharma; Rong-Ju Xu; Rosa Mara B. da Silveira; Rui-Fang Xu; Ruvishika S. Jayawardena; Salna Nanu; Salilaporn Nuankaew; Saowaluck Tibpromma; Saranyapath Boonmie; Sayanh Somrithipol; Sherin Varghese; Silvino Intra Moreira; Soumyadeep Rajwar; Shu-Cheng He; T. K. Arun Kumar; Teodor T. Denchev; Thatsanee Luangharn; Thays Gabrielle Lins de Oliveira; Tian-Ye Du; Ting-Chi Wen; Tingting Du; Tong Wu; Veera Sri-Indrasutdhi; Vinson P. Doyle; Vladimir Baulin; Wei Dong; Wen-Li Li; Wen-Hua Lu; Wenhui Tian; Willie Anderson dos Vieira; Wolfgang von Brackel; Xian-Dong Yu; Xian Zhang; Xiang-Fu Liu; Xing-Can Peng; Yanpeng Chen; Yanyan Yang; Ying Gao; YinRu Xiong; Yongxin Shu; Yong-Zhong Lu; Yuan-Min Shen; Yueyan Zhou; Yun Xia Zhang; Wei Zhang; Zong-Long Luo; Manawaduge Ayesha Madushani; Ratchadawan Cheewangkoon; Jia Ge Song; Biao Xu
This article is the 17th in the Fungal Diversity Notes series which allows the researchers to publish fungal collections with updated reports of fungus-host and fungus-geography. Herein we report 97 taxa with four new genera distributed in three phyla (Ascomycota, Glomeromycota and Mucoromycota), 11 classes, 38 orders and 62 families collected from various regions worldwide. This collection is further classified into taxa from 69 genera with four novel genera namely Jinshana, Lithophyllospora, Parapolyplosphaeria and Stegonsporiicola. Furthermore, 71 new species, 21 new records, one new combination and four novel phylogenetic placements are provided. The new species comprise Acrocalymma estuarinum, Aggregatorygma isidiatum, Alleppeysporonites elsikii, Amphibambusa aquatica, Apiospora hongheensis, Arthrobotrys tachengensis, Calonectria potisiana, Collariella hongheensis, Colletotrichum squamosae, Corynespora chengduensis, Diaporthe beijingensis, Dicellaesporites plicatus, Dicellaesporites verrucatus, Dictyoarthrinium endophyticum, Distoseptispora chiangraiensis, Dothiora eucalypti, Epicoccum indicum, Exesisporites chandrae, Fitzroyomyces pseudopandanicola, Fomitiporia exigua, Fomitiporia rondonii, Fulvifomes subthailandicus, Gigaspora siqueirae, Gymnopus ailaoensis, Hyalorbilia yunnanensis, Hygrocybe minimiholatra, H. mitsinjoensis, H. parviholatra, H. solis, H. vintsy, Helicogermslita kunmingensis, Jinshana tangtangiae, Kirschsteiniothelia dujuanhuensis, Lamproderma subcristatum, Leucoagaricus madagascarensis, Leucocoprinus mantadiaensis, Lithophyllospora australis, Marasmius qujingensis, Melomastia aquilariae, Monoporisporites jansoniusii, M. pattersonii, Monoporisporites valdiyae, Mucispora maesotensis, Mucor soli, Muyocopron yunnanensis, Nigrospora tomentosae, Ocellularia psorirregularis, Ophiocordyceps duyunensis, Oxneriaria nigrodisca, Oxydothis aquatica, O. filiforme, Phacidiella xishuangbannaensis, Phlebiopsis subgriseofuscescens, Pleurothecium takense, Pleurotus tuber-regium, Pseudochaetosphaeronema puerensis, Pseudodactylaria guttulate, Racheliella chinensis, Rhexoacrodictys fangensis, Roussoella neoaquatica, Rubroboletus pruinosus, Sanghuangporus subzonatus, Scytalidium assmuthi, Shrungabeeja kudremukhensis, Spirographa skorinae, Stanjehughesia bambusicola, Stegonsporiicola aurantiaca, Umbelopsis hingganensis, Vararia tenuata, Verruconis pakchongensis, Wongia bandungensis, and Zygosporium cymodoceae. The new combination is Parapolyplosphaeria thailandica (≡ Polyplosphaeria thailandica). The 21 new hosts, geographical and habitat records comprise Acrocalymma fici, Apiculospora spartii, Aspergillus subramanianii, Camposporium ramosum, Clonostachys rogersoniana, Colletotrichum brevisporum, C. plurivorum, Collybiopsis gibbosa, Dictyosporium tratense, Distoseptispora adscendens, Exosporium livistonae, Ganoderma gibbosum, Graphis mikuraensis, Gymnosporangium paraphysatum, Lasiodiplodia thailandica, Moesziomyces bullatus, Penicillium cremeogriseum, P. echinulonalgiovense, P. javanicum, P. lanosocoeruleum, P. polonicum, and Pleurotus tuber-regium. Graphis chlorotica, G. panhalensis and G. parilis are given as novel phylogenetic placements. In addition, we provide the morphology of Tarzetta tibetensis which was missing in the previous Fungal Diversity Notes 1611–1716. Identification of characterization of all these taxa are supported by morphological and multigene phylogenetic analyses. © The Author(s) under exclusive licence to Mushroom Research Foundation 2024.
Fungal diversity notes 2017–2122: taxonomic and phylogenetic contributions to freshwater fungi and other fungal taxa
(Springer Nature, 2025) Wei Dong; Kevin D. Hyde; Rajesh Jeewon; Samantha Chandranath Karunarathna; Huang Zhang; Walter Rossi; M. Leonardi; V. Kezo; Malarvizhi Kaliyaperumal; Yongxin Shu; Chunlin Yang; Feihu Wang; Feng Liu; Jian Ma; Jingyi Zhang; Yongzhong Lu; Mohamed Ahmed Abdel-Wahab; Ana Flávia Leão; Fábio Alex Custódio; Thiago Oliveira Condé; Olinto Liparini Pereira; Chunfang Liao; Haijun Zhao; Rongju Xu; Qi Zhao; Tianye Du; Saowaluck Tibpromma; Jutamart Monkai; Saisamorn Lumyong; Shucheng He; Digvijayini Bundhun; Yu Yang; Yuanpin Xiao; Danushka Sandaruwan Tennakoon; Lisu Han; Dongqin Dai; Hua Li; Yunhui Yang; Ishara S. Manawasinghe; Nimali Indeewari de Silva; Mark Seasat Calabon; Guangcong Ren; Deping Wei; Tingchi Wen; Xia Tang; Alireza Armand; Ruvishika Shehali Jayawardena; Raghvendra Singh; Soumyadeep Rajwar; S. Saran Kumar; Yanyan Yang; Entaj Tarafder; Krishnendu Acharya; Hongwei Shen; Zonglong Luo; Jianwei Liu; Fuqiang Yu; Yanxia Li; Yanpeng Chen; Sajeewa S.N. S N Maharachchikumbura; Shivannegowda Mahadevakumar; Pullabhotla Venkata Subba Rama Narshima Sarma; Chalasani Danteswari; Appa Rao Podile; Siddaiah Chandranayaka; Jafar Abdollahzadeh; Pezhman Amirashayeri; Sodabeh Piri Kakihai; Samaneh Bashiri; Filip Karpowicz; Stanislav Glejdura; Vladimír Kunca; Anna Ronikier; Michał Ronikier; Ryszard Rutkowski; Piotr Mleczko; Nakarin Suwannarach; Jaturong Kumla; Chanokned Senwanna; YUSUFJON Sh GAFFOROV; Massimo Sanna; Alberto Mua; Giuseppe Porcu; Marco Casula; Andrea C. Rinaldi; Leila Mohammadi Hamidi; A. Ahmadpour; Youbert Ghosta; Magdalena Oset; Martin Kukwa; Beata Guzow-Krzemińska; Muhammad Usman; Abdul Nasir Khalid; Emilia Anna Ossowska; Magdalena Kosecka; Steven L. Miller; Terry W. Henkel; Mary Catherine Aime; Oǧuzhan Kaygusuz; Ditte Bandini
This article is the 19th contribution to the fungal diversity notes series, in which 106 taxa distributed in 3 phyla, 11 classes, 35 orders, and 64 families are treated. Taxa described in the present study include a new family, 5 new genera, 69 new species, 3 new combinations, 25 new host, habitat, and geographical records, a new name, a new collection, as well as reinstating a previously suppressed genus. The newly established family is Parasporidesmiaceae and the five new genera described herein are Dematiodidymosporum, Neoacrogenospora, Parasporidesmium, Speluncomyces, and Uniomyces. The 69 new species are Acrocalymma triseptatum, Agaricus darjeelingensis, Annellophorella aquatica, Anteaglonium menghaiense, Balsamia microspora, Bambusicola dehongensis, Barriopsis menglaense, Benjaminiomyces bergonzoi, Camporesiomyces aquaticus, Camporesiomyces wurfbainiae, Cercospora palmata, Chrysomphalina cantharella, Colletotrichum heteropanacicola, Conioscypha guizhouensis, Conioscypha yadongensis, Cora dalfornoae, Cylindromonium brasiliense, Dematiodidymosporum aquaticum, Distoseptispora dinghuensis, Distoseptispora zunyiensis, Ebollia neocarnea, Eudimeromyces aequatorialis, Eudimeromyces euconni, Funalia indica, Fuscosporella ovalis, Fuscosporella yunnanensis, Halobasidium csapodyae, Halokirschsteiniothelia hunanensis, Hongkongmyces xishuangbannaensis, Inocybe ispartaensis, Laboulbenia neofrancoisiana, Lachnella kunmingensis, Lasmenia thailandica, Leptospora cannabini, Lycoperdon sridharii, Myxospora neomasonii, Natipusilla aquatica, Neoacrogenospora aquatica, Neomassaria sinensis, Neovaginatispora juglandis, Niesslia yunnanensis, Ophiocordyceps aseptatospora, Oxneriaria sheosarensis, Paramicrosphaeropsis vitis, Paramyrothecium strychni, Parapaucispora aquatica, Parasporidesmium aquaticum, Parmelia neosaxatilis, Periconia bambusicola, Periconia neohongheensis, Peroneutypa thailandica, Polyozellus albus, Porina magnoliae, Porostereum subspadiceum, Pseudosperma subvolvatum, Pseudothyridariella caseariae, Rhexocercosporidium ferulae, Russula rubroglutinata, Septoriella iranica, Seriascoma asexuale, Sesquicillium flavum, Sirastachys zhongkaiensis, Speluncomyces lunatus, Sporidesmiella yunnanensis, Striaticonidium xishuangbannaensis, Trametopsis indica, Tulostoma hyderabadensis, Uniomyces hakkeijimanus, and Virgaria guizhouensis. The three new combinations are Lycoperdon alpinum, Lycoperdon lloydii, and Lycoperdon macrogemmae. The 25 new records comprise Acremonium sclerotigenum, Agroathelia rolfsii, Alfaria terrestris, Aspergillus cejpii, Colletotrichum brevisporum, Coriolopsis brunneoleuca, Coriolopsis hainanensis, Cytospora tamaricicola, Fomitopsis malicola, Fulvifomes fastuosus, Fulvifomes thailandicus, Funalia cystidiata, Funalia subgallica, Longididymella vitalbae, Lopharia mirabilis, Metarhizium viridulum, Neopestalotiopsis haikouensis, Occultibambusa aquatica, Phaeoacremonium scolyti, Phaeocytostroma virdimurae, Puccinia mysuruensis, Rhizopus stolonifer, Serpula similis, Trametes ellipsospora, and Vamsapriya shiwandashanensis. In addition, the new name is Irpiciporus pseudoxuchilensis, and the new collection is Aspergillus sydowii. The previously suppressed genus Eudimeromyces has been taxonomically reinstated. © The Author(s) under exclusive licence to Mushroom Research Foundation 2025.
Morphology and phylogeny of Pseudocercospora trifoliorum sp. nov. (Mycosphaerellaceae) on Grona triflora from India
(Magnolia Press, 2025) Soumyadeep Rajwar; Raghvendra Singh; S. Saran Kumar; Paras Nath Singh; Alok Kumar Singh
Pseudocercospora trifoliorum, a newly discovered foliicolous hyphomycetous fungus on Grona triflora (Fabaceae), is taxonomically described and illustrated. Its phylogeny was determined using LSU, RPB2, and ITS regions to analyze evolutionary relationships. The taxon is compared to closely related Pseudocercospora species through morphological traits and molecular analysis, improving insights into its classification and evolutionary relationships. © 2025 Magnolia Press.
Uwebraunomyces, a novel genus of the family Mycosphaerellaceae
(Westerdijk Fungal Biodiversity Institute, 2025) Gurdip Singh; Priyanka Kumari; Soumyadeep Rajwar; Subhash Chandra Yadav; Smriti Mall; S. Saran Kumar; Ravindra Nath Singh
A hyaline to pale olivaceous brown hyphomycetous fungus was collected on living leaves of Tinospora cordifolia in India. Molecular phylogenetic analyses of several loci (LSU-RPB2-ITS) indicated a relationship with cercosporoid fungi (Mycosphaerellaceae). As no other known lineage shares similar morphology or DNA sequences, a new genus, Uwebraunomyces, is proposed, with U. tinosporae comb. nov. based on Ramularia tinosporae as the type species. Conidiophores are pale olivaceous to very pale brown in colour, typically unbranched, and subcylindrical to geniculate-sinuous at the tip. Conidia are solitary, obclavate to obpyriform, straight to curved, and few-septate. Additionally, the conidiogenous loci are characterized by a centrally located small papilla and a minute, distinct frill that is typically evident in older scars. These characteristics distinguish Uwebraunomyces from other closely related members of the ramularioid complex. Additionally, Cercosporella bundelkhandae is recognized as a new synonym as it shares nearly identical morphological features with U. tinosporae. At the ultrastructural level, Uwebraunomyces is further characterized by conidiogenous loci that bulge outward, forming convex or truncated cone shapes, with wall thickening extending beyond the area originally occupied by the base of the conidium. Older scars display a minute papilla or small, somewhat conical protuberant like structure in the centre of their apical depression, often accompanied by a minute, distinct frill. The conidial base is obconically truncate, featuring a basal depression with a centrally located, slightly protuberant structure. These distinct ultrastructural features set Uwebraunomyces apart from other members of the ramularioid complex, underscoring its taxonomic significance within the Mycosphaerellaceae. © 2025 Westerdijk Fungal Biodiversity Institute.