. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. 196 Amphispores ovoid to prismatic, — 24 X 1 3 — ^u , usually on pedicels —37)u long; walls thicker, very finely verrucose, or smooth at the apex; contents colorless. Teliospores subepidermal, amphigenous, mostly hypophyllous, inter- cellular, globoid to ellipsoid, usually 2 - to 6-celled, — X 15 —22ju; walls colorless, smooth, thin. Basidiospores subgloboid, — 11 X — Uredio- and teliospores in Japan on Athyrium acrostichoides (Sw.) Diels and A. pterorachis H. Christ. General distrib
. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. 196 Amphispores ovoid to prismatic, — 24 X 1 3 — ^u , usually on pedicels —37)u long; walls thicker, very finely verrucose, or smooth at the apex; contents colorless. Teliospores subepidermal, amphigenous, mostly hypophyllous, inter- cellular, globoid to ellipsoid, usually 2 - to 6-celled, — X 15 —22ju; walls colorless, smooth, thin. Basidiospores subgloboid, — 11 X — Uredio- and teliospores in Japan on Athyrium acrostichoides (Sw.) Diels and A. pterorachis H. Christ. General distribution: USSR (Far East) and Japan. On Abies mayriana Miyabe et Kudo — aecia in culture. On Athyrium acrostichoides (Sw.) Diels — FAR EAST- Uss. Urediospores (primary) and teliospores found by V. G. Tranzschel (14 Sept., 1929) in the Shkotovo District, in the basin of the Maikhe River, in the mountains near the village of Kharitonovka. The second host — A. pterorachis — is also encountered in the Far East. By direct infection with germinating overwintered teliospores Kamei obtained aecia on leaves of current year of Abies mayriana Miyabe et Kudo, in Japan. In the spermagonia stage the fungus is similar to the genus Milesia. On Dryopteris 7. Uredinopsis atkinsonii Magn., Hedwigia, XLIII, 1904, , , —7; Sacc, Sylloge, XVII, 1905, p. 269; Arth., N. Amer. Fl. VII, 1907, p. 117 (pr. p. inclus. U. longimucronata Faull); Syd., Monogr. Ured. Ill, 1915, p. 488 (pr. p. inclus. U. longimucronata Faull); Faull, Contr. Arn. Arb. XI, 1938, p. 57, tab. Ill, fig. 1 3, a —e, see note under Uredinopsis copelandi. Biol. Fraser, Mycologia, V, 1913, Spermagonia and aecia like those of Primary uredia hypophyllous, — mm across, covered by delicate peridium. Urediospores ellipsoid, obovoid to fusoid, 23 —49X 8 —15/j (average 34 X 12/u), with filamentous mucro, 0 — 1 9/u long (usually 7 —llju); walls colorless, smooth, with two
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