Fungalpedia – Note 1489, Cornucopiella
Cornucopiella. Höhn.
Index Fungorum, Facesoffungi, MycoBank, GenBank
Classification: Incertae sedis, Incertae sedis, Incertae sedis, Incertae sedis, Pezizomycotina, Ascomycota, Fungi
Saprobic on the host plant in terrestrial habitat, such as Alnus incana (Betulaceae), Fagus sp. (Fagaceae). Sexual morph: undetermined. Asexual morph: Conidiomata brown to dark brown, pycnidial, solitary to gregarious, superficial, cornute, cylindrical, sessile, unilocular, locule extending deeply, glabrous. Ostiole absent. Conidiomatal wall composed of thick-walled, dark brown to pale brown cells of textura porrecta at the base and lateral part. Conidiophores arising from inner layers of basal and lateral wall, hyaline, cylindrical, repeatedly branched at the base and above, septate, smooth-walled. Conidiogenous cells hyaline, enteroblastic, phialidic, cylindrical, integrated, determinate, smooth-walled, collarettes and apertures minute. Conidia hyaline, ellipsoid, rounded at both ends, unicellular, smooth-walled, guttulate (Sutton 1980).
Notes：Cornucopiella shares a similar form of conidiomata with Nanoschema. The differences between these two genera and aligned genera are discussed under Nanoschema. Two taxa are accepted in the genus, Cornucopiella fusispora (P. Karst.) Seifert and C. mirabilis, they can be distinguished by dimensions of conidia (Seifert 1985). No sexual morph has been linked to this genus, nor is molecular data available.
Type species: Cornucopiella mirabilis Höhn., Sber. Akad. Wiss. Wien, Math.-naturw. Kl., Abt. 1 124: 118 (1915).
Figure 1 – Cornucopiella mirabilis (redrawn from Nag Raj and DiCosmo 1980) a Vertical section of conidioma. b Conidiophores, conidiogenous cells and developing conidia.
c Conidia.
References
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.