. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. On Betulaceae 2 50 1. Me lamps or idium carpini (Nees) Diet., in Engler u. Prantl, Nat. Pflanzenfam. I, Abt. 1**, 1900, ; Fischer, Ured. Schweiz, 1904, ; Klebahn, Ztschr. Pflanzenkr. XVII, 1907, ; Hariot, 1908, p. 265; Migula, Deutschl. Ill, 1, 1910, S. 488, , Fig. 3; Sacc, Sylloge, XXI, 1912, p. 600; Klebahn, Kryptogfl. M. Brandb. Va, 1914, ; Trotter, Fl. Ital. Crypt. Ured., 1914, p. 422; Syd., Monogr. Ured. Ill, 1915, p. 428; Fragoso, Fl. Iber. Ured. II. 1925, p.
. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. On Betulaceae 2 50 1. Me lamps or idium carpini (Nees) Diet., in Engler u. Prantl, Nat. Pflanzenfam. I, Abt. 1**, 1900, ; Fischer, Ured. Schweiz, 1904, ; Klebahn, Ztschr. Pflanzenkr. XVII, 1907, ; Hariot, 1908, p. 265; Migula, Deutschl. Ill, 1, 1910, S. 488, , Fig. 3; Sacc, Sylloge, XXI, 1912, p. 600; Klebahn, Kryptogfl. M. Brandb. Va, 1914, ; Trotter, Fl. Ital. Crypt. Ured., 1914, p. 422; Syd., Monogr. Ured. Ill, 1915, p. 428; Fragoso, Fl. Iber. Ured. II. 1925, p. 248. ; N. Amer. Fl. VII. 1925, p. 680; Manual Rusts U. S. a. Canada, 1934, p. 23. fig. 34; Hirats., Monogr. Pucciniastreae, 1936. ; Tranzschel, Consp. Ured. URSS, Moscow, 1939, ,160. Syn. : Caeoma carpini Nees, System Pilze, 1816, Uredo carpini Desmaz., Fl. Krypt. No. 674, 1834. Melampsora carpini Fuckel, Symbol. 1870. p. 44; Sacc, Sylloge. VII. 1888. p. 593. Spermagonia and aecia unknown. Uredia hypophyllous. scattered or in small groups, on yellow patches. — across, covered by hemispherical peridium; inner wall of peridial cells slightly thickened, 3— 4ju; ostiolar cells of peridium thick-walled, extruded into long echinules. Urediospores prismatic, clavate or pyriform, 1 8 —28X 8 —14pi; wall colorless, echinulate smooth at the summit; contents yellow (Figure 64). Telia hypophyllous. subepidermal, scattered, minute, yellowish-brown. Teliospores prismatic or clavate, 28 —50 X 8 —16)u; wall light yellowish-brown, smooth. On species of Carpinus. General distribution North America. Teliospores develop rarely yedoensis Max., C. laxiflora Bl. and C cor data Bl.; on the latter, also in the USSR (Far East). In North America, in New York State on Ostrya virginiana In the USSR the species is known only in the uredial stage. On Carpinus betulus L. — EUROPEAN PART: U. Dns. (Berezhan area (according to Bovyak, 1 907));
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