. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. (Proc. Intern. Congr. Plant Sci., II, 1929, pp. 1 736, 1739, 1 743) were not performed with Uredinopsis atkinsonii in the present meaning, but with U. longimucronata Faull. In the Far East and in Japan another species— Uredinopsis hirosakiensis Kamei et Hirats.— parasitizes on Dryopteris thelypteris. 197 8. Uredinopsis hirosakiensis Kamei et Hirats., ex Kamei, Trans. Sapporo Nat. Hist. Soc. XII, 1932, p. 164; Hirats., Monogr. Pucciniastreae, 1936, p. 84, tab. II, fig. 5; Faull, Contr. Arn. Arb. XI, 1938, p. 61, tab. Ill
. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. (Proc. Intern. Congr. Plant Sci., II, 1929, pp. 1 736, 1739, 1 743) were not performed with Uredinopsis atkinsonii in the present meaning, but with U. longimucronata Faull. In the Far East and in Japan another species— Uredinopsis hirosakiensis Kamei et Hirats.— parasitizes on Dryopteris thelypteris. 197 8. Uredinopsis hirosakiensis Kamei et Hirats., ex Kamei, Trans. Sapporo Nat. Hist. Soc. XII, 1932, p. 164; Hirats., Monogr. Pucciniastreae, 1936, p. 84, tab. II, fig. 5; Faull, Contr. Arn. Arb. XI, 1938, p. 61, tab. Ill, fig. 14, a, b; Tranzschel, Consp. Ured. URSS, Moscow, 1939, p. 61,67. Biol. Kamei, , 1932; Trans. Sapporo Nat. Hist. Soc. XIII, 1934, p. 153, fig. 1 -3. Spermagonia amphigenous, mostly hypophyllous, scattered on yellow discolored areas of the tissue, subcuticular, barely projecting above the surface, or slightly flattened, conical or subgloboid in section, 74 —137/u across, 37 — high; honey-colored. Spermatia prismatic to prismatic-ellipsoid, — X —^/. Aecia mostly hypophyllous on leaves of current year on discolored areas, cylindrical, — mm in diameter, — mm high; peridial cells colorless, inner wall 2—4/u thick, finely and densely warted, outer wall thin, l/j, smooth. Aeciospores globoid or obovoid, 15 — 11 — (usually, X ^); spore wall colorless, thin, —^t, sparsely warted, apart from a small smooth area; contents colorless. Uredia hypophyllous on yellowing and browning areas, round, minute — mm- across, yellowish, covered by a delicate flattened-subgloboid peridium. Urediospores white, ovoid to ellipsoid, — 33 X 11- (usually, 24 X 19/u); spore wall thin, Iju, colorless, distinctly echinulate; contents colorless (Figure 28). Teliospores amphigenous, subepidermal, spherical to ellipsoid, 2- to 4-celled, rarely pluricellular, color- less; spore wall thin. Basidiospo
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