Groveolopsis pandani (Höhn.) Boedijn, Sydowia 5(3-6): 225 (1951)
Parasitic on living leaves of Pandanus sp. (Pandanaceae). Sexual morph: undetermined. Asexual morph: Conidiomata 130–160 µm diam., 100–140 µm high, black, pycnidioid, solitary to gregarious or confluent, immersed, globose or oval to irregular, unilocular, thick-walled, glabrous, with a dark brown papillate ostiole. Ostiole short, single, circular to oval, centrally located. Conidiomatal wall 8–30 µm wide, composed of thick-walled, brown cells of textura globulosa at the outer layers, and thick-walled, hyaline cells of textura prismatica at inner layers. Conidiophores reduced to conidiogenous cells. Conidiogenous cells 6–15 × 3–8 µm, hyaline, enteroblastic, phialidic, ampulliform to subcylindrical, smooth, arising from the inner wall layers of conidiomata. Conidia 36–55.4 × 5–9 µm ( = 44 × 6.7 µm; n = 30), hyaline, obclavate, narrow and truncate at the base, attenuated towards the apex, usually asepatte, occasionally 1-septate, smooth-walled, guttulate, bearing a cup-like or irregular, mucoid, apical appendage; basal appendages present or absent.
Material examined: Thailand, Chiang Mai, on living leaves of Pandanus sp. (Pandanaceae), 4 February 2012, N. Tangthirasunun, NTP008–1 (MFLU13-0309).
Groveolopsis pandani (MFLU 13-0309) a, b Herbarium specimens. c, d Appearance of black conidiomata on the host. e, f Vertical sections of conidiomata. g, h Sections of peridium. i–o Conidiogenous cells and developing conidia. p–v Conidia (arrows indicate basal appendages). Scale bars c = 1000 µm, d–f = 100 µm, g = 20 µm, i–j = 5 µm, k–o, p–v = 10 µm.
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.