. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. Biol. Klebahn. Ztschr. Pflanzenkr. XV, 1905, S. 99; XXVI, 1916, S. 260 —261; Bubak, Centrbl. Bakteriol, II. Abt. XVI, 1906, ; Weir a. Hubert, Phytopathol. VIII, 1918, p. 37-38; Mayor, Bull. Soc. Neuchat. sci. natur. XLVII, 1923, —73; L, 1925, —84; LI, 1926, ; Bell, Bot. Gaz. LXXVII, 1924, p. 21—26, ,2, tab. IV, fig. 21, 27, 28; Pady, Ann. Botany, XLIX, 1935, p. 71-93, text fig. 1 — 54. Spermagonia appear on second-year leaves in circular spots, hypophyl- lous, lenticular in section, 311 — 496/
. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. Biol. Klebahn. Ztschr. Pflanzenkr. XV, 1905, S. 99; XXVI, 1916, S. 260 —261; Bubak, Centrbl. Bakteriol, II. Abt. XVI, 1906, ; Weir a. Hubert, Phytopathol. VIII, 1918, p. 37-38; Mayor, Bull. Soc. Neuchat. sci. natur. XLVII, 1923, —73; L, 1925, —84; LI, 1926, ; Bell, Bot. Gaz. LXXVII, 1924, p. 21—26, ,2, tab. IV, fig. 21, 27, 28; Pady, Ann. Botany, XLIX, 1935, p. 71-93, text fig. 1 — 54. Spermagonia appear on second-year leaves in circular spots, hypophyl- lous, lenticular in section, 311 — 496/u wide and 86 — 117^ high (on an average, 432 X 102/u ), under the slightly raised epidermis, with a densely interlacing mycelium at the basis; spermatophores septate, slightly slanting toward the center. Spermatia oblong, — X 2 .4 — . Aecia on third-year leaves, hypophyllous, on yellow patches, round or elongate, — mm across, up to 1 mm long and 1 mm high, brownish- yellow; peridium colorless or brownish; peridial cells rhombic in section, tessellate, outer walls 4 — 5/l/ thick, smooth, inner walls 6 — 8/Li thick, warted. Aeciospores globoid or broad-ellipsoid, 21—25 X16 —19/u; walls colorless, thin, very finely and densely verruculose. Uredia amphigenous, scattered, round, orange to yellow, covered by a peridium of flattened cells pressed against the epider- mis. Urediospores, with yellow contents, are of two kinds: l) elongate, ovoid, or sub- pyriform, frequently irregular, 29 — 34 (48) X (16)20 —26/u; walls colorless, thin, — , covered with inconspicuous warts, with 4 indistinct equatorial pores; 2) (= amphispores)from broad-ellipsoid to polygonal, 36 — 56 (72)x (27)32—40^; walls thick, up to 4/L(, colorless, almost smooth, with 6 — 8 distinct, scattered pores. Teliospores develop in the spring in the epidermal cells, frequently filling them, in 1 —2 layers, round or angular due to reciprocal pressure,
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