. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 114 UEOMYCES of the preceding crop, all aflfected mangel " tops'' should be burnt: rotation of crops is of course a sure preventive, as in all such cases. Distribution : Europe, California, South Africa, Australia, New Zealand. 26. Uromyces Salicorniae De Bary. JEeidium Salicorniae DC. Flor. fr. vi. 92. Uromyces Salicorniae De Bary, in Rab. Fung. Eur. nos. 1385—6. Cooke, Grevillea, vii. 137. Plowr. Ured. p. 129. 538, Sydow, Monogr. ii. 230. Sacc. Syll. vii. ^cidiospores. jEcidia on the cotyledons chiefly,
. The British rust fungi (Uredinales) their biology and classification. Rust fungi. 114 UEOMYCES of the preceding crop, all aflfected mangel " tops'' should be burnt: rotation of crops is of course a sure preventive, as in all such cases. Distribution : Europe, California, South Africa, Australia, New Zealand. 26. Uromyces Salicorniae De Bary. JEeidium Salicorniae DC. Flor. fr. vi. 92. Uromyces Salicorniae De Bary, in Rab. Fung. Eur. nos. 1385—6. Cooke, Grevillea, vii. 137. Plowr. Ured. p. 129. 538, Sydow, Monogr. ii. 230. Sacc. Syll. vii. ^cidiospores. jEcidia on the cotyledons chiefly, scattered or in small clusters, at first hemispherical, then cup-shaped, with erect, torn, white margin; spores finely verruculose, orange-yellow, 17—35 ya. Uredospores. Sori scattered or aggregated, minute, rounded, long covered by the epidermis, pulverulent, cinnamon; spores ovate to pyriform, very finely echinulate, yellow-brown, 24—35 x 18—25 ^; epispore about l^fji thick. Teleutospores. Sori similar, but larger and rather compact, dark-brown ; spores subglobose to obovate, rounded above and often thickened (up to 4 fi), and surmounted by a thin, broad, dark cap, rounded below, smooth, brown, 25— 35 X 18—28 /M; pedicels hyaline, thick, per- sistent, as much as 80 fj, long. On leaves and stems of Salicornia europaea (herbacea). October — November. Eare. (Fig. 66.) The teleuto-sori are chiefly on the stems, as much as 3 mm. long, and very pulvinate. Distribution : France, Germany. 27. Uromyces Rumicis Wint. Uredo Rumicis Schum. PL Sail. ii. 231. Trichobasis Rumicum DC. ; Cooke, Micr. Fung. p. 225 Uromyces apieulosa Ldv. ; Cooke, Handb. p. 518; Micr. Fung, p. 212 (excl. figs.).. Fig. 66. U. Sali- corniae. Teleu- tospores on S. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.
Size: 1120px × 2231px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookpublishercambr, bookyear1913
