. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. 187 by 168 —214jU high, spherical to slightly flask-shaped in section. Spermatia narrow-ellipsoid, 4 — 5 X — Aecia hypophyllous on needles of current year, in two irregular rows, one on each side of midrib on slightly yellow-discolored areas of the tissue, white, cylindrical, — across, — high; peridia colorless, delicate, rupturing at the apex; peridial cells polygonal, vertically elongate, overlapping, in a single layer, 32 — 48 X 20 —32/y; their outer wall smooth, inner wall verrucose or w
. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. 187 by 168 —214jU high, spherical to slightly flask-shaped in section. Spermatia narrow-ellipsoid, 4 — 5 X — Aecia hypophyllous on needles of current year, in two irregular rows, one on each side of midrib on slightly yellow-discolored areas of the tissue, white, cylindrical, — across, — high; peridia colorless, delicate, rupturing at the apex; peridial cells polygonal, vertically elongate, overlapping, in a single layer, 32 — 48 X 20 —32/y; their outer wall smooth, inner wall verrucose or with coarse, short, irregularly orientated ridges. Aeciospores ellipsoid, ovoid, or globoid, mostly elongate, white, 32—46 X 24- 30ij; spore wall thin (about 1/u ), verrucose; warts irregular in outline, tapering to a blunt point, sometimes deciduous. IJredia round or slightly elongate, — mm long, covered by the faintly brownish epidermis, scattered or loosely grouped on olive patches of the leaf; peridia hemispherical; peridial cells colorless, isodiametrically or irregularly polygonal, usually 8 — 1 5/L/across; walls — thick. Urediospores abundant, single, on short pedicels, obovoid or ellipsoid, 29 — 41 X 14 —23/u (on an average, about 36 X 18/u), with very thin, smooth walls (Figure 20). Telia hypophyllous and occasionally epiphyllous, forming on overwintered leaves, brown areas of indefinite extent. Teliospores usually fill the epidermal cells, occasionally also the guard cells, 1 - to 50-celled, with vertical septa and one pore in the outer wall of each cell; teliospore cells 9 — 17 X 8 —14/u, with smooth, thin, colorless walls. Aecia on Abies alba Mill, in FIGURE 20. Milesia vogesiaca (Syd.) Faull on Polystichum lobatum (Sw.)Presl. Uredio- spores, y 600. (Orig.) 18. Milesia whitei Faull, Contr. Arn. Arb. II, 1932, tab. V, fig. 20, a —d; Tranzschel, Consp. Ured. URSS, Moscow, 1939, p. 62, 65. Syn. : Milesina The
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectplants
