Polystromomyces Mongkolsamrit, Noisripoom, Sakolrak & Himaman, 2022

Mongkolsamrit, Suchada, Noisripoom, Wasana, Tasanathai, Kanoksri, Kobmoo, Noppol, Thanakitpipattana, Donnaya, Khonsanit, Artit, Petcharad, Booppa, Sakolrak, Baramee & Himaman, Winanda, 2022, Comprehensive treatise of Hevansia and three new genera Jenniferia, Parahevansia and Polystromomyces on spiders in Cordycipitaceae from Thailand, MycoKeys 91, pp. 113-149 : 113

publication ID


persistent identifier


treatment provided by

MycoKeys by Pensoft

scientific name

Polystromomyces Mongkolsamrit, Noisripoom, Sakolrak & Himaman

gen. nov.

Polystromomyces Mongkolsamrit, Noisripoom, Sakolrak & Himaman gen. nov.

Type species.

Polystromomyces araneae Mongkolsamrit, Noisripoom, Sakolrak & Himaman.


From Latin “poly” (many), referring to many stromata of the fungus on the host.


Sexual morph: Stromata stipitate, multiple, pale yellow mycelium covering the host. Stipes arising from spider egg sac, cylindrical at the base, slightly enlarged midway to the terminal end of the stipe below the fertile head. Fertile heads produce at the terminal stipes, disc-shaped, upper surface slightly convex. Perithecia completely immersed, ovoid. Asci cylindrical. Ascospores hyaline, filiform, disarticulating into part-spores. Colony on PDA and OA, white, producing microcycle conidiation.


Polystromomyces contains a new species, Po. araneae . It shares similarity with species in Hevansia in producing multiple stipes with fertile heads at the apex. This specimen is found on a spider egg sac ( Araneae) attached to the underside of a dicot leaf. There is no record of the asexual morph on the specimen.