Crucellisporiopsis prolongata
Crucellisporiopsis prolongata Brub., Rawla & R. Sharma, Mycotaxon 21: 449 (1984)
Saprobic on decomposing leaf of an unidentified angiosperm. Sexual morph: undetermined. Asexual morph: Conidiomata straw-coloured, stromatic, cornuted to spuriously synnematoid, solitary to gregarious, erect or variously curved, slightly roughened, differentiated into a stalk and a conidiiferous head; stalk 1.5–2 mm long, 100–300 µm wide, subcylindric, slightly swollen at the base, becoming narrowed above, head 200–300 µm diam., 150–200 µm high, ellipsoidal to subcylindrical, often with a pointed tip, with the concave conidial intricate; excipulum of hyaline, textura porrecta; hymenium of textura prismatica to textura angularis. Conidiophores hyaline, septate, branched, smooth-walled, with up to 3 terminal conidiogenous cells or sterile hyphae, arising in cavity of conidiomata. Sterile hyphae hyaline, clavate to subcylindrical, with an obtuse apex, straight or curved, septate, smooth-walled. Conidiogenous cells 10–25 × 2–3 µm, hyaline, cylindrical to subcylindrical, discrete or integrated, indeterminate, smooth-walled. Conidia hyaline, mostly tetra-radiate, rarely quinque-radiate, guttulate; main axis 11–30 × 2–3 µm (
= 18 × 2.3 µm; n = 30), clavate to obconic with a narrow truncate base, aseptate or 1-septate, cells unequal, straight or curved, bearing a tubular, unbranched, attenuated appendage; arms 47–74 × 1–3 µm ( = 61 × 1.8 µm; n = 30), three, rarely four, delimited from the main axis by septa, straight or curved, each arm 3–5-septate, without constrictions at the septa, arms unequal.
Material examined: India, Himachal Pradesh, Dharampur, Solan, along banks of a stream in predominantly pine forest, on decomposing leaf of an unidentified angiosperm, August 1978, G.S. Rawla (DAOM 187814, holotype).
Crucellisporiopsis prolongata (DAOM 187814, holotype) a, b Herbarium specimen. c, f–g Appearance of straw-coloured stalked pycnidia on the host. d Stalked pycnidium. e Conidiomatal head. h–i Vertical section of a conidiomatal head. j Stalk of conidioma. k–l Conidiophores, conidiogenous cells and developing conidia. m–n, p–q Conidia. o, r Excipulum of conidima. Scale bars c = 1000 µm, d = 100 µm, e–f = 200 µm, h–j = 100 µm, k–l = 20 µm, m, n, p,q = 10 µm, o = 20 µm, r = 10 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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