Botryocrea
Botryocrea Petr., Sydowia 3(1–6): 140 (1949)
Ascomycota, genera incertae sedis.
Saprobic on stems of Astragalus sp. (Fabaceae). Sexual morph: undetermined. Asexual morph: Conidiomata reddish brown, solitary to gregarious, pycnidial, superficial, globose to irregular, unilocular, glabrous. Ostiole absent, dehiscence by irregular split in the apical wall. Conidiomatal wall composed of thick-walled, hyaline cells of textura angularis to textura prismatica. Conidiophores arising from the innermost layers of conidiomata, hyaline, filiform, branched, septate, smooth-walled. Conidiogenous cells hyaline, enteroblastic, phialidic, lageniform to cylindrical, integrated or discrete, indeterminate, smooth-walled, with periclinal thickening at collarette zone. Conidia hyaline, fusiform, tapered at the apex, curved, 3-septate, smooth-walled (Sutton 1980).
Type species: Botryocrea sclerotioides (Höhn.) Petr., Sydowia 3(1–6): 141 (1949)
Notes: Botryocrea is a monotypic genus and a shares similar form of conidia with Fusarium (Sutton 1980). Index Fungorum (2019) lists Botryocrea as a synonym of Fusarium, but the fungus is coelomycetous, whereas Fusarium is a hyphomycete. Kirk et al. (2013) did not treat Botryocrea as a valid name. We conclude that Botryocrea is a well-established genus and should be treated as a legitimate name. Fresh collections are needed and subjected to DNA sequence analyses to resolve its placement in a natural classification.
Distribution: Turkey (Sutton 1980).
Botryocrea sclerotioides (redrawn from Sutton 1980) a Conidia. b Conidiophores, conidiogenous cells and developing conidia. c Vertical section of conidioma. d Detail of conidiomatal wall and conidiophores
Reference:
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.
Recent News
coelomycetes.org - notes 2coelomycetes.org - notes 1
Recent Genus
ZunuraZelosatchmopsis
Zelandiocoela
Recent Species
Zelosatchmopsis sacciformisZelandiocoela ambigua
Yoshinagaia quercus