Pleosporomycetidae, Incertae sedis » Pseudorobillardaceae » Pseudorobillarda

Pseudorobillarda eucalypti

Pseudorobillarda eucalypti N. Tangthirasunun & K.D. Hyde, in Tangthirasunun, et al., Phytotaxa 176(1): 255 (2014)

Facesoffungi number: FoF 07561


Saprobic on dead leaves of eucalyptus. Sexual morph: undetermined. Asexual morph: Conidiomata 255–330 µm diam., 350500 µm high, black, pycnidial, scattered to gregarious, semi-immersed to superficial, subglobose to obclavate, unilocular, glabrous, thick-walled, ostiolate. Ostiole 160–190 × 60–90 µm, single, subcylindrical, centrally located, with a long ostiolar canal. Conidiomatal wall 30120 µm thick, composed of thick-walled, brown to hyaline cells of textura angularis in the exterior, gradually merging with textura porrecta or textura prismatica towards conidial hymenium. Paraphyses absent. Conidiophores reduced to conidiogenous cells. Conidiogenous cells 6–17 × 2–5 µm, hyaline, enteroblastic, phialidic, short-cylindrical, ampulliform, lageniform, thick-walled, smooth. Conidia 15–18 × 5–8 µm ( = 17 × 6 µm; n = 30), hyaline, subcylindrical to fusiform, rounded at apex, truncated at base, aseptate, guttulate, thick-walled, smooth, bearing 2–3-unbranched, filiform, attenuated, flexuous, apical appendages extracellular in the upper half of apical cell (10–19 µm long).


Material examined: Thailand. Sakaeo, Pang Sida, on dead leaves of eucalyptus, 17 June 2012, N. Tangthirasunun (MFLU 130275, ex- holotype).





Pseudorobillarda eucalypti (MFLU 130275, ex-holotype) a Herbarium specimen. b, c Appearance of black conidiomata on toothpicks. d, e Vertical sections of conidiomata. f–g Vertical sections of peridium. h–k Conidiogenous cells and developing conidia. l–o Conidia. Scale bars b = 500 µm, c = 200 µm, de = 100 µm, f = 20 µm, g = 50 µm, ho = 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.





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