Mycosphaerellales » Mycosphaerellaceae » Pseudodidymaria

Pseudodidymaria wyethiae

Pseudodidymaria wyethiae (Ellis & Everh.) U. Braun, Cryptog. bot. 4(1): 110 (1993).

Marssonia wyethiae Ellis & Everh., Proc. Acad. nat. Sci. Philad. 46(3): 373 (1894).

            Index Fungorum number: IF 361958; Facesoffungi number: FoF 11291, Fig. 1

Description: see Videira et al. (2016, 2017).

Material examined: see Videira et al. (2016, 2017).

Fig. 1 Pseudodidymaria wyethiae (NY 01087025, lectotype, re-drawn from Fig. 29 in Videira et al. 2016). a Leaf spot lesion on the host. b, c Conidiogenous cells and conidia. d–f Conidia. Scale bars = 10 μm.

Importance and distribution

Pseudodidymaria comprises three species causing leaf spots on Clematis ligusticifolia (Ranunculaceae), Symplocarpus nipponicus (Araceae) and Wyethia glabra (Asteraceae). Pseudodidymaria is reported from Asia (Japan) and the United States (California, Utah).



Braun U. 1998 – A monograph of Cercosporella, Ramularia and allied genera (phytopathogenic hyphomycetes): Vol. 1. IHW-Verlag, Eching, Munich, Germany.

Videira SIR, Groenewald JZ, Braun U, Shin HD, Crous PW. 2016 – All that glitters is not Ramularia. Studies in Mycology 83, 49–163.

Videira SIR, Groenewald JZ, Nakashima C, Braun U, Barreto RW, de Wit PJGM, Crous PW. 2017 – Mycosphaerellaceae - Chaos or clarity? Studies in Mycology 87, 257–421.


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