. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. 172 Syn. : Milesina Feurichii Magn., Ber. Deutsch. bot. Ges. XXVII, 1909, S. 32 5, Taf. XIV, Fig. 8; Klebahn, Kryptogfl. M. Brandb. Va, 1914, S. 852; Syd., Monogr. Ured. Ill, 1915, p. 478; Fragoso, Fl. Iber. Ured. II, 192 5, p. 279; Hirats., Monogr. Pucciniastreae, 1936, p. 126, tab. IV, Melampsorella Feurichii Magn., Ber. Deutsch. bot. Ges. XX, 1902, S. 609, Taf. XXVII, Fig. 1—5; Sacc. Sylloge, XVII, 1905, p. 267; Liro, Ured. 1908. p. 493. Hyalopsora Feurichii (Magn.) Ed. Fisch., Ured. Schweiz, 1904,
. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. 172 Syn. : Milesina Feurichii Magn., Ber. Deutsch. bot. Ges. XXVII, 1909, S. 32 5, Taf. XIV, Fig. 8; Klebahn, Kryptogfl. M. Brandb. Va, 1914, S. 852; Syd., Monogr. Ured. Ill, 1915, p. 478; Fragoso, Fl. Iber. Ured. II, 192 5, p. 279; Hirats., Monogr. Pucciniastreae, 1936, p. 126, tab. IV, Melampsorella Feurichii Magn., Ber. Deutsch. bot. Ges. XX, 1902, S. 609, Taf. XXVII, Fig. 1—5; Sacc. Sylloge, XVII, 1905, p. 267; Liro, Ured. 1908. p. 493. Hyalopsora Feurichii (Magn.) Ed. Fisch., Ured. Schweiz, 1904, ; Hariot, Ured., 1908, p. 254; Migula, Deutschl. Ill, 1, 1910. ; Trotter, Fl. Ital. Crypt. Ured., 1914, p. 390. Spermagonia and aecia unknown. Uredia from round to linear, — mm across, and up to 2 mm long, usually on petioles, occasionally hypophyllous (rarely also epiphyllous), scattered on olive or brownish areas, frequently completely covering the frond and petioles; peridia typical, or formed in part by loosely joined cells; peridial cells isodiametric, or slightly elongate, 7 — 17^ across, their walls — ^ thick; no paraphyses (demonstrated by Magnus). Urediospores on pedicels up to 18ju long, obovoid, ellipsoid, or subgloboid, 28 — 44 X 17 — 26 (on an average, about 30 X 20p), wall, — thick, rather finely and sparsely echinulate (Figure 8). Telia on overwintered leaves, blades, veins and petioles amphigenous, more frequently on the brown patches on the underside of leaves. Teliospores one or more intracellular, intraepidermal, often in stomata, frequently filling the cells, 1- to 15-ceIled, one pore in the outer wall of each cell; teliospore cells 8 — 27 X 8 —19ju. Basidia 4-celled, 60 — 80 X —)lj. Basidiospores globoid to broad- obovate, 7 — 9 X — Uredio- and teliospores on Asplenium septentrionale (L.) Hoffm. General distribution: western Europe. In the USSR not yet found. 2. Milesia mag
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