Synonymy:
Microthelia donacina Niessl, in Thümen, Inst. Rev. Cient. Litt., Coimbra, Ser. 2 28: no. 536 (1881)
Didymosphaeria donacina (Niessl) Sacc., Syll. Fung. (Abellini) 1: 715 (1882)
Didymosphaerella donacina (Niessl) Cooke, Grevillea 18(no. 86): 29 (1889)
Munkovalsaria donacina (Niessl) Aptroot, Nova Hedwigia 60(3-4): 346 (1995)

Montagnula saikhuensis Wanas., E.B.G. Jones & K.D. Hyde, in Wanasinghe, Gareth Jones, Camporesi, Dissanayake, Kamolhan, Mortimer, Xu, Elsalam & Hyde, Fungal Biol. 120(11): 1367 (2016)

Montagnula chromolaenicola Mapook & K.D. Hyde, in Mapook, Hyde, McKenzie, Jones, Bhat, Jeewon, Stadler, Samarakoon, Malaithong, Tanunchai, Buscot, Wubet & Purahong, Fungal Diversity 101: 35 (2020)

Montagnula thailandica Mapook & K.D. Hyde, in Mapook, Hyde, McKenzie, Jones, Bhat, Jeewon, Stadler, Samarakoon, Malaithong, Tanunchai, Buscot, Wubet & Purahong, Fungal Diversity 101: 35 (2020)

Montagnula puerensis Tibpromma & Du, in Du, Hyde, Mapook, Mortimer, Xu, Karunarathna & Tibpromma, Phytotaxa 514(1): 6 (2021)

Position in classification:
Montagnula, Didymosphaeriaceae, Pleosporales, Pleosporomycetidae, Dothideomycetes, Ascomycota, Fungi

Note:
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