Pycnocarpon Theiss., Abh. K.K. Zool.-Bot. Ges. Wien 7(3): 31 (1913).

MycoBank number: MB 4564; Index Fungorum number: IF 4564; Facesoffungi number: FoF 07606; 4 morphological species (Species Fungorum 2020), 1 species with molecular data.

Type species: Pycnocarpon magnificum (Syd., P. Syd. & E.J. Butler) Theiss., Abh. K.K. Zool.-Bot. Ges. Wien 7(3): 31 (1913).

Asterina magnifica Syd., P. Syd. & E.J. Butler, Annls mycol. 9(4): 391 (1911).

Notes: Wijayawardene et al. (2018) accepted this genus in Dothideomycetes genera incertae sedis. However, Doilom et al. (2018) included Pycnocarpon in Asterinaceae based on its superficial, web-like hypha, flattened thyriothecia, opening by radiating star-like or longitudinal splits, saccate asci, and conglobose, hyaline to brown, 1-septate ascospores strongly constricted at the septum (Doilom et al. 2018). We accept Pycnocarpon in Asterinaceae but note that the upper wall of ascomata of Pycnocarpon differs from members of Asterinaceae in having radially arranged, subglobose cells instead of cells of textura prismatica. Thus, sequence data is needed to confirm its placement.


  • Pycnocarpon magnificum