Ascomycota, genera incertae sedis
Parasitic on the host plant in terrestrial habitat. Sexual morph: undetermined. Asexual morph: Conidiomata brown, acervular, scattered or confluent, immersed to erumpent, depressed-globose, unilocular, glabrous. Ostiole absent, opening by irregular splits of apical host tissue. Conidiomatal wall composed of thick-walled, pale brown to hyaline cells of textura angularis. Conidiophores arising from inner layer of the basal part of condioma, hyaline, irregular, branched, septate, smooth-walled. Conidiogenous cells hyaline, enteroblastic, phialidic, cylindrical to lageniform, integrated or determinate, smooth-walled. Conidia hyaline, cylindrical to fusiform with acute apex and slightly truncate base, straight or slightly curved, 0–1-septate, smooth-walled, eguttulate (Sutton 1980).
Type species: Cylindrogloeum arcticum Petr., Annls mycol. 39(4/6): 276 (1941)
Notes: This description is based on Cylindrogloeum trillii (Ell. & Ev.) Arx. Sutton (1980) gave details of the taxonomy of this genus. No sexual morph has been linked to this genus and no molecular data is available.
Distribution: Norway, Sweden, USA (https://www.gbif.org/).
Cylindrogloeum trillii (redrawn from Sutton 1980) a Vertical section of conidioma. b Conidiophores, conidiogenous cells and developing conidia. c Conidia.
Li WJ, McKenZie EHC, Liu JK, Bhat DJ, Dai DQ, Caporesi E, Tian Q, Maharachcikumbura SSN, Luo ZL, Shang QJ, Zhang JF, Tangthirasunun N, Karunarathna SC, Xu JC, Hyde KD (2020) Taxonomy and phylogeny of hyaline-spored coelomycetes. Fungal Diversity 100: pages279–801.