Ascomycota, genera » Ascomycota, incertae sedis

Botryocrea

Botryocrea Petr., Sydowia 3(1–6): 140 (1949)

 

Facesoffungi number: FoF 07134

Index Fungorum: IF 7418

 

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

 

 

References:

Sutton BC (1980) The Coelomycetes. Fungi imperfecti with pycnidia,acervuli and stromata. Commonwealth Mycological Institute, Kew, pp 1–696.

Li W, McKenzie E, Liu J, Bhat D, Dai D, Camporesi E, Tian Q, Maharachchikumbura S, Luo Z, Shang Q, Zhang J, Tangthirasunun N, Karunarathna S, Xu J and Hyde K– 2020. Taxonomy and phylogeny of hyaline-spored coelomycetes. Fungal Diversity, 100(1), pp.279-801.

 

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