Neocucurbitaria sp.
Neocucurbitaria sp.
Saprobic on rodent dung. Sexual morph: undetermined. Asexual morph: Coelomycetous. Conidiomata 120–250 µm diam., 120–250 µm high, dark brown to black, pycnidial, solitary to gregarious, immersed to semi-immersed, globose to subglobose or oval, unilocular, thick-walled, papillate, setose, ostiolate. Ostiole circular, single, centrally located. Conidiomatal setae 2–4 µm wide, septate, branched. Conidiomatal wall 14–30 µm wide, composed of thick-walled, brown to pale brown cells of textura angularis. Conidiophores reduced to conidiogenous cells. Conidiogenous cells comprised of two types: a) 6–25 × 1.5–3.5 µm, hyaline, subcylindrical to lageniform, with marked periclinal thickenings at collarette zone, arising from the inner-most cells of the conidiomata at base and lateral part; b) 3.5–7 × 2–3 µm, cylindrical, pale brown at base, becoming hyaline above, formed at upper zone close to ostiole. Conidia 3.5–7 × 2–3 µm (
= 5 × 2 µm; n = 30), hyaline, cylindrical to oval or circular, unicellular, obtuse at each end, guttulate, smooth-walled.
Material examined: USA, California, San Bernardino Co., 1 mile North of Mt. Baldy, on rodent dung, 11 April 1972, D. Malloch (DAOM 215329).
Neocucurbitaria sp. (DAOM 215329) a Herbarium specimen. b, c Appearance of dark brown to black conidiomata on dung. d, e Vertical sections of conidiomata. f, h Sections of peridium. g Setae. i, j, l Conidiogenous cells and developing conidia. k Ostiole. m, n Conidia. Scale bars: d–e = 200 µm, f–g, i, l = 20 µm, h = 50 µm, j–k = 10 µm, m–n = 5 µm.
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.
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