. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. On C oni ogr amma, Pteris 7. Milesia coniogrammes (Hirats.) Kupr. et Tranz. comb. nov. Syn. : Milesina coniogrammes Hirats., Bot. Mag. Tokyo, XLVIII, 1934, p. 45, fig. 6; Hirats., Monogr. Pucciniastreae, 1936, p. 92, tab. V, fig. 6. Spermagonia and aecia unknown. Uredia hypophyllous, round or elliptical, — mm across, subepi- dermal, on brownish patches; peridium hemispherical or pyriform; upper peridial cells isodiametric or irregularly polygonal, 10 — 18/u across, the lateral cells radially elongated. Urediospor
. Cryptogamic plants of the USSR. (Flora sporovykh rastenii SSSR). Plants. On C oni ogr amma, Pteris 7. Milesia coniogrammes (Hirats.) Kupr. et Tranz. comb. nov. Syn. : Milesina coniogrammes Hirats., Bot. Mag. Tokyo, XLVIII, 1934, p. 45, fig. 6; Hirats., Monogr. Pucciniastreae, 1936, p. 92, tab. V, fig. 6. Spermagonia and aecia unknown. Uredia hypophyllous, round or elliptical, — mm across, subepi- dermal, on brownish patches; peridium hemispherical or pyriform; upper peridial cells isodiametric or irregularly polygonal, 10 — 18/u across, the lateral cells radially elongated. Urediospores obovoid or fusoid, 25 — X 15 — (on an average, 32 X 17pj); spore wall less than 1/u thick, smooth, although scattered, minute echinules or verrucules are evident on some spores, especially at the apex. Telia on overwintering leaves, mostly hypophyllous, on yellowish-brown to dark brown spots. Teliospores intracellular epidermal, colorless, round or irregular in shape, consisting of one or more cells, and with thin, smooth walls. On Coniogramnia fraxinea Diels, Diels, Pteris cretica L. and P. multifida Poir. in Japan, from Honshu to Taiwan. Teliospores found only on Pteris cretica. In the USSR encountered on Coniogramma fraxinea in the Far East (Sakhalin). FIGURE 12. Mi- lesia darkeri Faull On Cryptogramma on Cryptogramma acrostichoidesR. 8. Milesia darker! Faull, Contr. Am. Arb. II, 1932, Br. Urediospores. p. 46, tab. VI, fig. 24, a —d; Arth., Manual Rusts U. S. a. (After Arthur) Canada, 1934, p. 9, fig. 15; Tranzschel, Consp. Ured. URSS. Moscow, 1939, p. 63,66. Syn.: Milesina Darkeri (Faull) Hirats. Monogr. Pucciniastreae, 1936, p. 95. Spermagonia and aecia unknown. Uredia hypophyllous and on petioles, round, — mm across, sub- epidermal, scattered or in loose groups on olive or brownish patches; peridia hemispherical, compact; peridial cells isodiametrically to irregularly polygonal, 8 —14/u across,the walls — thick. Ure
Size: 1488px × 1679px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectplants
