Pseudoparodiella vernoniae
Pseudoparodiella vernoniae F. Stevens, Illinois Biol. Monogr. (Urbana) 11(no. 2): 166 (1927).
Index Fungorum number: IF 281562; Facesoffungi number: FoF 12066, Fig. 1
Description:
Parasitic on leaf surface of dicotyledonous plants. Sexual morph: Ascomata 80–200 µm diam., 95–155 µm high, small-sized, scattered or gregarious, superficial, globose, surrounded by setae. Peridium 10–15 µm thin, composed of a few layers of lightly brown pigmented thin-walled cells of textura angularis. Hamathecium of rare, 2–3 μm broad pseudoparaphyses. Asci 55−75 × 15−25 µm (x̄ = 65.5 × 17.5 µm, n = 20), 8-spored, bitunicate, fissitunicate, dehiscence not observed, obclavate, with a short, thick, knob-like pedicel, with an ocular chamber. Ascospores 15−20 × 6−10 µm (x̄ = 17.5 × 8.5 µm, n = 20), 2-seriateand partially overlapping, broadly fusoid to ellipsoidal with broadly to narrowly rounded ends, olivaceous to pale brown,uniseptate, slightly constricted at the septum, the upper cell slightly longer and broader than the lower one. Asexual morph: Unknown.
Material examined: Spain, Peralta, on leaves of Vernonia canescens (Asteraceae), 7 December 1923, F.L. Stevens (K(M):154549, holotype).
Fig. 1 Pseudoparodiella vernoniae (K(M):154549, holotype). a, b Herbarium specimen and material. c, d Setose ascomata on the substrate surface. e Section of an ascoma. f Peridium. g Ostiole. h Setae. i Pseudoparaphyses. j−l Asci. m−o Ascospores. Scale bar: e = 100 µm, f, h, j−l = 20 µm, g = 50 µm, i, m−o = 10 µm.
Importance and distribution
Pseudoparodiella comprises only one species known on Vernonia canescens (Asteraceae) in Asia (Thailand).
Reference
Zhang Y, Crous P, Schoch C, Bahkali A, Guo LD, Hyde K. 2011 – A molecular, morphological and ecological re-appraisal of Venturiales - A new order of Dothideomycetes. Fungal Diversity 51, 249–277.
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