Phaeodothis
Phaeodothis Syd. & P. Syd., Annls mycol. 2(2): 166 (1904).
Index Fungorum number: IF 3914; Facesoffungi number: FoF 00059, 21 morphological species (Species Fungorum 2022), 2 species with molecular data.
Saprobic or parasitic on dead wood or grasses in terrestrial environments. Sexual morph: Ascostromata subglobose to hemispherical, immersed, scattered to gregarious, dark brown to black. Peridium comprising several layers of hyaline compressed cells. Hamathecium of dense, cellular pseudoparaphyses often in a gelatinous matrix. Asci 8-spored, bitunicate, fissitunicate, cylindrical, short pedicellate. Ascospores fusiform with rounded ends, olivaceous brown, 1-septate, slightly constricted at the septum. Asexual morph: unknown (adapted from Ariyawansa et al. 2014).
Type species: Phaeodothis tricuspidis Syd. & P. Syd.
Notes: Phaeodothis is characterised by subglobose to hemispherical, immersed ascostromata, cylindrical, short pedicellate asci and fusiform, olivaceous brown ascospores. von Niessl (1875) placed Phaeodothis in Didymosphaeria. Aptroot (1995) transferred Phaeodothis to Phaeosphaeriaceae based on morphology. Phaeodothis resembles members in Didymosphaeriaceae in having ascomata immersed under a clypeus, a pseudoparenchymatous peridium with small cells, cylindrical asci and brown ascospores but differs in having hamathecium comprising few pseudoparaphyses anduniseptate ascospores. In the phylogenetic analysis of Schoch et al. (2009) based on LSU, SSU, RBP1, RBP2 and EF-1, a strain named Phaeodothis winteri clustered within Montagnulaceae. Ariyawansa et al. (2014) re-examined the holotype specimen of Phaeodothis tricuspidis (S F125876) and transferred Phaeodothis to Didymosphaeriaceae based on morphology. Tennakoon et al. (2020) added Phaeodothis mori to Didymosphaeriaceae. Phaeodothis is currently a distinct genus in Didymosphaeriaceae but sequence data from more collections are needed to confirm this taxonomic placement. Molecular markers available for Phaeodothis are ITS, LSU, SSU, BTUB and TEF-1.
Recent News
Recent paper to be publishedRecent Genus
NothocladosporiumPhillipsiella
Ampelomyces
Recent Species
Nothocladosporium syzygiiPhillipsiella atra
Curreya conorum
