Fungalpedia – Note 603, Gangamyces
Gangamyces Hosag.
Citation when using this data: D. S. Marasinghe et al. 2023 (in prep.) – Fungalpedia, Ascomycota.
Index Fungorum, Facesoffungi, MycoBank, GenBank.
Classification: Incertae sedis, Capnodiales, Dothideomycetidae, Dothideomycetes, Pezizomycotina, Ascomycota, Fungi
Colonies epiphyllous on leaves. Superficial hyphae dark brown, septate, flexuous, with appressoria lateral in opposite couplets with a stellate lumen in the attached mycelial cell. Sexual morph: Thyriothecia superficial, orbicular, scattered or gregarious black, orbicular with radiating cells, astomatous, dehisce stellately at the center. Asci 8-spored, bitunicate, globose. Ascospores oblong to cylindrical, conglobate, dark brown to brown, 1-septum, constricted at the septum. Asexual morph: Conidia globose, numerous pyriform, aseptate, often readily germinating (Hosagoudar 2012).
Notes: Gangamyces was introduced by Hosagoudar (2012) with the type species G. miliusae. This genus resembles Asterina in having orbicular thyriothecia, superficial hyphae with appressoria, globose asci and conglobate brown ascospores. However, Gangamyces is different from Asterina in having oppositely borne appressoria with a stellate lumen continuous with the parent hyphal cell (Hosagoudar 2012). Hawksworth (2012) treated Gangamyces as doubtful and synonymized it under Asterina and Hongsanan et al. (2014a) also accepted this genus as a synonym of Asterina. However, we retain this genus in Asterinaceae based on oppositely borne appressoriate hyphae until further in-depth studies with molecular data.
Type species: Gangamyces miliusae Hosag. & Archana, Mycosphere 3[‘2’] (5): 778 (2012).
Other accepted species: Species Fungorum – search Gangamyces.
References
Hongsanan S, Li YM, Liu JK et al 2014a – Revision of genera in Asterinales. Fungal Divers 68:1–68.
Entry by
Diana Sandamali Marasinghe, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100, Thailand School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand, Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai, 50150, Thailand
Published online 29 August 2023