Tryblidiopsis P. Karst. [as 'Triblidiopsis'], Bidr. Känn. Finl. Nat. Folk 19: 262 (1871)
= Tryblidiopycnis Höhn., Sber. Akad. Wiss. Wien, Math.-naturw. Kl., Abt. 1 127(8-9): 562 (1918)
Leotiomycetes, Leotiomycetidae, Rhytismatales, Rhytismataceae
Saprobic or endophytic on the host plant in terrestrial habitat (Gremmen 1955, Sutton 1980, Livsey & Minter 1994, Barklund & Kowalski 1996). Sexual morph: see Livsey & Minter (1994). Asexual morph: Conidiomata black, stromatic, pycnidial, solitary to aggregated or confluent, semi-immersed to erumpent, circular to applanate or irregular in shape, unilocular or multilocular, glabrous, thick-walled. Ostiole absent, dehiscing by an irregular split of the upper wall. Conidiomatal wall composed of thick-walled, dark brown cells of textura angularis in the exterior, gradually merging with thicker, pale brown cells of textura oblita in the interior, becoming hyaline cells of textura angularis in the conidial hemenium. Conidiophores arising from the inner layer of conidiomata, hyaline, branched at the base, septate, smooth-walled. Conidiogenous cells hyaline, holoblastic, sympodial or synchronous, subcylindrical to lageniform, indeterminate, mostly discrete, with 1–2 apical, small, unthickened, scarcely protuberant scars. Conidia hyaline, falcate or hamate, unicellular, smooth-walled (adapted from Sutton 1980, Nag Raj and DiCosmo 1982).
Type species: Tryblidiopsis pinastri (Pers.) P. Karst., Bidr. Känn. Finl. Nat. Folk 19: 262 (1871)
≡ Tryblidiopycnis pinastri Höhn., Sber. Akad. Wiss. Wien, Math.-naturw. Kl., Abt. 1 127(8-9): 562 (1918)
Notes: The taxonomic position of Tryblidiopsis was revised by Livsey & Minter (1994) and Wang et al. (2014). The genus is presently placed in Rhytismataceae (Rhytismatales) (Kirk et al. 2008, Gernandt et al. 2001, Lantz et al. 2011), and three species are accepted, T. pinastri, T. sichuanensis Shuang Wang et al. and T. sinensis Shuang Wang et al. (Wang et al. 2014). The asexual morph of Tryblidiopsis has been connected to Tryblidiopycnis by Gremmen (1957) with experimental proof. This connection was confirmed by Livsey & Minter (1994) and (Wang et al. 2014) based on culture and phylogenetic studies, respectively. Tryblidiopycnis pinastri Höhn. type species of Tryblidiopycnis, is asexual morph of T. pinastri, type species of Tryblidiopsis (Sutton 1980). Three taxa are recognized in Tryblidiopsis, while only a single species is included in Tryblidiopycnis. Therefore, the generic name Tryblidiopsis is conserved over Tryblidiopycnis, as it has priority and is more widely used.
Distribution: worldwide (Wijayawardene et al. 2017).
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.