Pleosporomycetidae, Incertae sedis » Pseudorobillardaceae » Pseudorobillarda

Pseudorobillarda indica

Pseudorobillarda indica Nag Raj, Morgan-Jones & W.B. Kendr., Can. J. Bot. 50(4): 865 (1972)

Facesoffungi number: FoF 07562

 

Foliicolous. Sexual morph: undetermined. Asexual morph: Conidiomata 150–300 µm diam., 200350 µm high, brown to dark brown, pycnidial, solitary to gregarious or confluent, immersed to semi-immersed, oval to rounded, with a short-cylindrical neck in surface view, globose to subglobose, occasionally conical in sectional view, unilocular, glabrous, ostiolate. Ostiole 50–60 × 30–40 µm, single, circular to subcylindrical, centrally or laterally located. Conidiomatal wall 10–30 µm wide, composed of thick-walled, brown to hyaline cells of textura prismatica. Paraphyses 30–60 × 1–2 µm, hyaline, filiform, septate, branched and bulging at base, smooth-walled, mixed with conidiophores. Conidiophores arising from the inner wall layers of conidiomata, hyaline, dolliform to subcylindrical, thick- and smooth-walled, invested in mucus. Conidiogenous cells 6–9 × 3–5 µm, hyaline, enteroblastic, phialidic, cylindrical to ampulliform, swollen at base, indeterminate, discrete or integrated, with marked periclinal thickenings at collarette zone. Conidia 16–24 × 2.4–4 µm ( = 20 × 3 µm; n = 30), hyaline, subcylindrical to fusiform, subacute at apex, blunt and truncate at base, straight or slightly curved, 1-septate, occasionally 3-septate, constricted at the septa, guttulate, thick- and smooth-walled, bearing at one end 3, occasionally 2–4, flexuous, divergent, extracellular appendages (11–23 µm long).

 

Material examined: India, Bangalore, Rajajinagar, 19 October 1970 to 16 November 1970, T.R. Nag Raj (DAOM 134448, cultured on PDA from type).

 

 

Pseudorobillarda indica (DAOM 134448, ex-type) a, b Herbarium package and specimen. c, d Appearance of dark brown to brown conidiomata on PDA. e, f Vertical sections of conidiomata. g, l Paraphyses. h Section of peridium. ik Conidiophores, conidiogenous cells and developing conidia. mp Conidia. Scale bars c–d = 200 µm, e–f = 100 µm, g, i–l = 10 µm, h = 20 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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