Fungalpedia – Note 2433, Xenoastrosphaeriella

 

Xenoastrosphaeriella. Jayasiri, E.B.G. Jones & K.D. Hyde.

Citation when using this data: Dong W et al. 2020 – Fungalpedia, Ascomycota.

Index Fungorum, Facesoffungi, MycoBank, GenBank. 

Classification: Astrosphaeriellaceae, Pleosporales, Pleosporomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi

 

Saprobic on bamboo and palms in freshwater or terrestrial habitats. Sexual morph: Ascostromata dark opaque, gregarious, erumpent to superficial, mammiform to conical with ruptured, reflexed, stellate, host remnants around the base, uniloculate, glabrous, brittle, carbonaceous, central ostiolate, with pore-like opening. Peridium unequal thickness, poorly developed at the base, thick at the sides towards the apex, composed of thick, opaque and melanized cells. Pseudoparaphyses dense, trabeculate, hyaline, distinctly septate, anastomosing between the asci, embedded in a hyaline gelatinous matrix. Asci 8-spored, bitunicate, cylindrical, short pedicellate, apically rounded with an ocular chamber. Ascospores overlapping uni- to bi-seriate, brown to reddish brown, with paler end cells, fusiform with acute ends, septate, smooth-walled (Hawksworth and Boise 1985; Phookamsak et al. 2015b; Jayasiri et al. 2019). Asexual morph: Undetermined.

Notes: Xenoastrosphaeriella was established by Jayasiri et al. (2019) to accommodate Astrosphaeriella tornata (Cooke) D. Hawksw. & Boise which formed a weakly supported clade with other genera in Astrosphaeriellaceae (Phookamsak et al. 2015b). Xenoastrosphaeriella is distinct in the family in having paler end cells of ascospores (Hawksworth and Boise 1985; Phookamsak et al. 2015b; Jayasiri et al. 2019). The second species Xenoastrosphaeriella trochus (D. Hawksw.) Phookamsak et al. was recently introduced based on morphology and phylogeny (Hongsanan et al. 2020a). Both species X. tornata and X. trochus were ever collected from freshwater habitats (see list below), but not confirmed by molecular data.

 

Type species: Xenoastrosphaeriella tornata (Cooke) Jayasiri & K.D. Hyde

Other accepted species: Species Fungorum – search Xenoastrosphaeriella.

 

References

Hawksworth DL, Boise JR (1985) Some additional species of Astrosphaeriella, with a key to the members of the genus. Sydowia 38:114–124

Hongsanan S, Hyde KD, Phookamsak R, Wanasinghe DN, McKenzie EHC, Sarma VV, Boonmee S, Lücking R, Pem D, Bhat DJ, Liu N, Tennakoon DS, Karunarathna A, Jiang SH, Jones EBG, Phillips AJL, Manawasinghe I, Tibpromma S, Jayasiri SC, Sandamali D, Jayawardena RS, Wijayawardene NN, Ekanayaka AH, Jeewon R, Lu YZ, Dissanayake AJ, Luo ZL, Tian Q, Phukhamsakda C, Thambugala KM, Dai DQ, Chethana TKW, Ertz D, Doilom M, Liu JK, Pérez-Ortega S, Suija A, Senwanna C, Wijesinghe SN, Konta S, Niranjan M, Zhang SN, Ariyawansa HA, Jiang HB, Zhang JF, de Silva NI, Thiyagaraja V, Zhang H, Bezerra JDP, Miranda-Gonzáles R, Aptroot A, Kashiwadani H, Harishchandra D, Aluthmuhandiram JVS, Abeywickrama PD, Bao DF, Devadatha B, Wu HX, Moon KH, Gueidan C, Schumm F, Bundhun D, Mapook A, Monkai J, Chomnunti P, Samarakoon MC, Suetrong S, Chaiwan N, Dayarathne MC, Jing Y, Rathnayaka AR, Bhunjun CS, Xu JC, Zheng JS, Liu G, Feng Y, Xie N (2020a) Refined families of Dothideomycetes: Dothideomycetidae and Pleosporomycetidae. Mycosphere 11:1553–2107

Jayasiri SC, Hyde KD, Jones EBG, McKenzie EHC, Jeewon R, Phillips AJL, Bhat DJ, Wanasinghe DN, Liu JK, Lu YZ, Kang JC, Xu JC, Karunarathna SC 2019 – Diversity, morphology and molecular phylogeny of Dothideomycetes on decaying wild seed pods and fruits. Mycosphere 10:1–186.

Phookamsak R, Norphanphoun C, Tanaka K, Dai DQ, Luo ZL, Liu JK, Su HY, Bhat DJ, Bahkali AH, Mortimer PE (2015b) Towards a natural classification of Astrosphaeriella-like species; introducing Astrosphaeriellaceae and Pseudoastrosphaeriellaceae fam. nov. and Astrosphaeriellopsis, gen. nov. Fungal Divers 74:143–197

 

Entry by

Wei Dong, Faculty of Agriculture and Food, Kunming University of Science and Technology, Kunming 650500, China, Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand, Innovative Agriculture Research Center, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, China

 

Published online 22 May 2026

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