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Page number:216 
Description type:Non-original description 
Description:Ramularia rumicis Kalchbr. & Cooke, Grevillea 8: 23 (1880) Fig. 488
Syn.: = Ramularia decipiens Ellis & Everh., J. Mycol. 1: 70 (1885) [holotype: on Rumex crispus L., USA, Ohio, Kellerman (NY)]. º Didymaria rumicis Baudyš, Lotos 63: 61 (1916).
Lit.: Saccardo (1886: 215), Lindroth (1902: 13), Magnus (1905: 542), Lindau (1907: 441), Ja_evskij (1917: 281), Vasil'evskij & Karakulin (1937: 125), Vimba (1970: 38), Moro_kovs'kij et al. (1971: 132), Švarcman et al. (1973: 165), Osipjan (1975: 270), Brandenburger (1985: 91), CMI Descr. 852 (1986), Sagdullaeva et al (1989: 207).
Ill.: CMI Descr. 852, Fig. (1986).
Exs.: Barth., F. Columb. 2783, 3976, 4379. F. exs. suec. 1970, 1971. Ell., N. Am. F. 220 p.p., 2964. Ell. & Ev., F. Columb. 688. Herb. Mycol. Rom. 2983. Mycoth. fenn. 491. Reliquiae Petrakianae 2181, 2843. Roum., F. gall. exs. 3879. Solh., Mycofl. Saximont. exs. 95.
Leaf spots amphigenous, circular-elliptical, somewhat irregular, often large, 2-20 mm diam., pale greenish, yellowish-ochraceous, pale brown, greyish, margin indefinite or with a narrow, somewhat raised dark marginal line. Caespituli amphigenous, punctiform to subeffuse, greyish white. Mycelium internal; hyphae hyaline, 1-3 ?m wide, forming well-developed, often large substomatal stromata, compact, colourless or almost so, composed of somewhat swollen hyphal cells, 3-6 ?m diam. Conidiophores in fairly large fascicles, divergent to dense, arising from stromata, through stomata, erect, straight, subcylindric to flexuous, filiform, geniculate-sinuous, simple, (10-)15-80(-130) x 2-6 ?m, continuous to septate, hyaline, smooth; conidial scars thickened, darkened. Conidia solitary or in short chains, subcylindric, (10-)12-40(-50) x (3-)5-8(-10) ?m, 0-3-septate, hyaline, smooth or almost so, ends obtuse, rounded or somewhat attenuated; hila thickened, darkened.
Lectotypus: on Rumex obtusifolius L., South Africa, Cape, Somerset-East, MacOwan 1180 (B). Isolectotypi: B, K.
Host range and distribution: on Rumex (Polygonaceae), Asia, Caucasus, Europe, Africa, N. America - Rumex acetosa L. (Central Asia, Kazakhstan; Europe, LT, LV), R. acetosella L. (Europe, LV, PL), R. aquaticus L. (Asia, Far East of RUS, Uzbekistan; Europe, D, EW, LV, RUS, S, SF), R. alpinus L. (Caucasus, Armenia), R. alpinus x obtusifolius (Europe, RO), R. britannica L. (N. America, USA), R. confertus Willd. (Central Asia, Kazakhstan, Kirghizia; Europe, LV, RO), R. conglomeratus Murr. (Central Asia, Tadzhikistan, Turmenistan; Caucasus, Armenia; Europe, A, CZ, LT, PL), R. crispus L. (Caucasus, Armenia; Europe, H, RO, RUS, S; N. America, USA, OH), R. dentatus L. (Asia, India, Pakistan), R. x heterophyllus C. F. Schultz (Europe, S), R. hydrolapathum Huds. (Europe, LT, PL, RO), R. hydrolapathum x aquaticus (Europe, PL), R. hymenosepalus Torr. (N. America, USA), R. longifolius DC. (Central Asia, Kirghizia; Europe, LV), R. nepalensis Spreng. (Asia, China, India, Nepal), R. obtusifolius L. (Europe, D, EW, LV, PL, RO, RUS, SF; S. Africa; S. America, cf. Viégas, 1961), R. obtusifolius x sanguineus (Europe, RO), R. orientalis Bernh. ex Schult. f. (Asia, India), R. patientia L. (Europe, RO, TR; N. America), R. pulcher L. (N. Caucasus; Canary Is.), R. sanguineus L. (Europe, RO), R. thyrsiflorus Fingerh. (Europe, LT), R. triangulivalvis (Danser) Rech. f. (Europe, LT), R. tianschanicus A. Los. (Central Asia, Kazakhstan), R. venosus Pursh (N. America, USA, WY), R. verticillatus L. (N. America, USA, NY), R. spp. (Asia, Iran, Japan, Uzbekistan; Caucasus, Georgia; Europe, GR, H, Ukr.; Africa, Kenya; N. America, USA, AK).
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