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Page number:221 
Description type:Non-original description 
Description:Miuraea persicae (Sacc.) Hara, Byogaichu-Hoten (Manual of Pests and Diseases): 224 (1948) Fig. 210
[Frosty mildew of peach]
Syn.: º Cercospora persicae Sacc., N. Giorn. bot. Ital. 8: 189 (1876) and in Thüm., Herb. mycol. oec., Fasc. X, No. 473, Klosterneuburg 1877. º Cercosporella persicae (Sacc.) Sacc., Michelia 2: 20 (1880). º Fusarium persicae (Sacc.) G. F. Atk., J. Elisha Mitch. sci. Soc. 8: 41 (1892). º Clasterosporium persicae (Sacc.) Tsuji, Ann. Phytopathol. Soc. Japan 1: 33 (1919).
= Septocylindrium pruni Golovin, Tr. sredneaz. gos. Univ., nov. ser., 14, biol. Nauk, Kn. 5: 21 (1950) [type: on Prunus ulmifolia Franch., Kirghizia, Sovchoz Kara-alma, 16-8-1937, Panfilova (not seen!)].
Lit.: Saccardo (1886: 218), Lindau (1907: 423), Ferraris (1913: 773), Vasil'evskij & Karakulin (1937: 184), CMI Map, ed. 1, 442 (1968), Subramanian (1971: 254), Švarcman et al. (1973: 488), Osipjan (1975: 258), Brandenburger (1985: 267).
Ill.: Golovin (l.c.: Fig. 13).
Exs.: Rabenh., F. eur. 2151. Sacc., Mycoth. ven. 598. Syd., F. exot. exs. 544 (sub Clasterosporium degenerans). Thüm., Herb. mycol. oec. 473. Thüm., Mycoth. univ. 1568.
Teleomorph: Mycosphaerella pruni-persicae Deighton (Tomilin, 1979; Sivanesan, 1984).
Leaf spots almost absent, later diffuse yellowish to reddish brown discolorations, mainly hypophyllous. Colonies hypophyllous, white patches, later confluent, powdery mildew-like. Primary mycelium internal, hyphae hyaline, septate, branched, 1-3 ?m diam., occasionally forming small, loose substomatal hyphal aggregations, true stromata lacking. Secondary mycelium external, superficial, creeping, emerging through stomata, hyphae hyaline, septate, branched, smooth, 1.5-3.5 ?m wide. Conidiophores (conidiogenous cells) arising from superficial hyphae, lateral, occasionally terminal, small, often knob-like, simple, subcylindric, conical, straight to slightly curved, 3-15 x 2-3 ?m, hyaline, smooth, continuous, with or without basal septum, conidiogenous cells monoblastic, polyblastic, rarely percurrent; conidial scars inconspicuous, unthickened, neither darkened nor refractive. Conidia solitary, straight to curved, obclavate, fusiform, subcylindric, (15-)20-75(-85) x 2.5-7(-8) ?m, 0-10(-12) transverse and occasionally 1(-2) longitudinal or oblique septa, occasionally constricted, smooth, colourless, thin-walled, later often faintly yellowish green to very pale brown, mature conidia sometimes thick-walled, apex obtuse, base rounded to truncate, hilum unthickened.
Lectotypus: on Prunus persica (L.) Batsch, Italy, Selva (Treviso), Sept. 1875, Saccardo, Mycoth. ven. 598 (HAL). Isolectotypi: Sacc., Mycoth. ven. 598 and Thüm., Herb. mycol. oec. 473.
Host range and distribution: on Prunus [incl. Amygdalus, Armeniaca, Persica] (Rosaceae), Asia, Caucasus, Europe, N. and S. America - Amygdalus ledebouriana Schldl. [Prunus nana] (Asia, Kazakhstan), Prunus armeniaca L. [Armeniaca vulgaris] (Asia, ? China, India), Prunus persica (L.) Batsch [Persica vulgaris] (Asia, China, India, Japan, Nepal, S. Korea; Caucasus, Armenia, Azerbaijan, Georgia; Europe, BG, I, RUS; N. America, Canada, USA, NC, OK; S. America, Argentina), Prunus ulmifolia Franch. (Asia, Kirghizia), Prunus (Amygdalus) spec. (Caucasus, Armenia, Georgia; Europe, GR).
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