Fungalpedia – Note 2547, Phaeocytostroma
Phaeocytostroma. Petr.
Citation when using this data: Boonmee S et al. 2021 – Fungalpedia.
Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig 1
Classification: Incertae sedis, Incertae sedis, Incertae sedis, Incertae sedis, Pezizomycotina, Ascomycota, Fungi
Notes: Phaeocytostroma was introduced by Petrak (1921) with the type species P. istrica isolated from rotting culms of Zea mays in Croatia. Sutton (1964) re-circumscribed Phaeocytostroma and synonymized Pleocyta and Phaeocytosporella under Phaeocytostroma. Lamprecht et al. (2011) provided additional collections and phylogenetic placement of species in Phaeocytostroma and included in Diaporthaceae. Our phylogenetic taxon sampling Phaeocytostroma were retrieved from Lamprecht et al. (2011) and the GenBank database. Six species have been included in Phaeocytostroma (Index Fungorum 2021). This study introduces a new species Phaeocytostroma yomense as a saprobic taxon isolated from decaying submerged wood in a freshwater habitat.
Type species: Phaeocytostroma istricum Petr. [as ‘istrica‘], Annls mycol. 19(1/2): 46 (1921).
Other accepted species: Species Fungorum – search Phaeocytostroma.
Figure 1 – Phaeocytostroma yomense (MFLU 21-0070, holotype). a, b Appearance of white conidiomata on decaying submersed wood substrate. c–e Conidia. f Germinated conidium. g, h Culture on PDA from surface and reverse. Scale bars: a = 100 μm, b = 50 μm, c, e, f = 20 μm, d = 10 μm.
References
Index Fungorum (2021) Index Fungorum. http://www. indexfungorum.org/
Petrak F 1921 – Mykologische Notizen. II. Annls Mycol 19:17–128.
Entry by
Saranyaphat Boonmee, 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
Published online 6 June 2026