Ascomycota, genera » Ascomycota, incertae sedis

Stictosepta

Stictosepta Petr., Sydowia 17: 230 (1964) [1963]

Facesoffungi number: FoF 07603

Ascomycota, genera incertae sedis

 

Saprobic on dead branches of Fraxinus sp. (Oleaceae). Sexual morph: undetermined. Asexual morph: Conidiomata, pycnidial, immersed, globose to collabent, unilocular, convoluted, glabrous, papillate. Ostiole single, circular, centrally located. Conidiomatal wall composed of thin-walled, hyaline cells of textura intricata. Conidiophores arising from the inner wall layer of conidiomata, hyaline, irregular, branched, septate, anastomosing. Conidiogenous cells hyaline, holoblastic, sympodial or synchronous, cylindrical to irregular, integrated, indeterminate, smooth-walled, with usually two small, unthickened, apical, slightly protuberant conidiogenous loci. Conidia hyaline, cylindrical to filiform, with obtuse apex and slightly truncate base, straight or curved, multiseptate, slightly constricted at the septa, smooth-walled, guttulate (adapted from Sutton 1980).

 

Type species: Stictosepta cupularis Petr., Sydowia 17: 230 (1964) [1963]

 

Notes: Stictosepta remains monotypic. This genus is similar to Septoria in having pycnidial conidiomata producing hyaline multiseptate conidia, but it was distinguished from the latter by its sympodial conidiogenous cells and the presence of conidiophores. No molecular data is available for Stictosepta. Fresh collections are needed to investigate its taxonomy and its relationship with closely related genera.

 

Distribution: Czech Republic (Sutton 1980, Quaedvlieg et al. 2013).

 

 

 

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.

 

 

 

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