Drepanopeziza (Kleb.) Jaap, Verh. bot. Ver. Prov. Brandenb. 56: 79 (1914)
= Gloeosporidiella Petr., Hedwigia 62: 318 (1921)
Leotiomycetes, Leotiomycetidae, Medeolariales, Dermateaceae
Saprobic or pathogenic on the host plant in terrestrial habitat. Sexual morph: see Rimpau (1961), Spiers and Hopcroft (1998). Asexual morph: Conidiomata brown to black, acervular, solitary, gregarious or confluent, semi-immersed to superficial, unilocular. Ostiole absent, dehiscing by irregular rupture of overlapping host tissue. Conidiomatal wall composed of thick-walled, brown to dark brown cells of textura angularis in basal layers. Conidiophores formed from the upper layer cells of the basal wall, hyaline, cylindrical or irregular, branched, septate, smooth-walled. Conidiogenous cells hyaline, enteroblastic, monophialidic, ampulliform to subcylindrical, integrated or discrete, determinate, smooth-walled. Conidia hyaline, fusiform or falcate, unicellular, smooth-walled (Morgan-Jones et al. 1972c, Sutton 1980).
Type species: Drepanopeziza ribis (Rehm ex Kleb.) Höhn., Annls mycol. 15(5): 332 (1917)
= Gloeosporidiella ribis (Lib.) Petr., Hedwigia 62: 318 (1921)
Notes: Morgan-Jones et al. (1972c) and Sutton (1980) re-described and illustrated the genus. It is characterized by acervular, conidiomata, phialidic conidiogenous cells and hyaline, fusiform or falcate, aseptate conidia. The sexual morph of Gloeosporidiella was correlated with Drepanopeziza by von Arx (1957a, b), and this connection was confirmed by Rimpau (1961). According to “one fungi = one name” principle, Rossman et al. (2016a) conserved the generic name Gloeosporidiella for the holomorph, as it has priority and is well-defined. Species of Drepanopeziza (= Gloeosporidiella) are associated with leaf lesions on Ribes (Grossulariaceae) (von Arx 1957a, b, Sutton 1980).
Distribution: Italy, France, Germany, Netherlands, Portugal, Sweden, UK, USA, (Sutton 1980, Spiers and Hopcroft 1998).
Drepanopeziza ribis (redrawn from Morgan-Jones et al. 1972c) a Macroconidia. b microconidia. c Vertical section of conidioma. d Conidiophores, conidiogenous cells and developing 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.