. The British rust fungi (Uredinales), their biology and classification. Uredineae. ON LEGUMINOSy^: 101 belong to U. Pisi hus been proved by Jordi to be confined to that .si) and not to be transmissible to Pisum sativum or Lathyrus. It has been named by Magnus U. Fischeri-Edvxirdi, but is not known as British. Distribution : Europe generally; North America less eoramonly. 15. Uromyces Phaseolorum I)e Bary. ^cidiiim Phaseolorum Wall. I''l. Crypt. Germ. ii. 256. Uredo appendicidata var. Pkaseoli Pers. Syn. j). 222. Uromyces Phaseolorum De Bary, Ann. Sci. Nat. ser. 4, xx. 80 (18(33). Cooke,
. The British rust fungi (Uredinales), their biology and classification. Uredineae. ON LEGUMINOSy^: 101 belong to U. Pisi hus been proved by Jordi to be confined to that .si) and not to be transmissible to Pisum sativum or Lathyrus. It has been named by Magnus U. Fischeri-Edvxirdi, but is not known as British. Distribution : Europe generally; North America less eoramonly. 15. Uromyces Phaseolorum I)e Bary. ^cidiiim Phaseolorum Wall. I''l. Crypt. Germ. ii. 256. Uredo appendicidata var. Pkaseoli Pers. Syn. j). 222. Uromyces Phaseolorum De Bary, Ann. Sci. Nat. ser. 4, xx. 80 (18(33). Cooke, Grevillea, vii. 135. r. Phaseoli V\'h\t. Pike, p. 157 (1884). Plowr. Ured. p. 122. York- shire Fung. Fl. p. 186. U. appendicxdatus Link, Obs. ii. 28. Sacc. Syll. vii. 535. Sydow, Monogr. ii. 120. Fischer, Ured. Schweiz, p. 19, f. 16. IMcAlpine, Rusts of Australia, p. 92, f. 306 (all pro parte). yigredo Arthur, N. Amer. Fl. vii. 257 [Spermogones. In little clusters, whitish, then yellowish. ^£cidiospores. ^cidia hypophyllous, clustered in little roundish groups 2—3 mm. wide on yellowish or brownish spots, cup-shaped, whitish, with a torn revolute margin; spores poly- gonal or oblong, densely and minutely verruculose, colourless, 18—36 X 16—24 ft.] Uredospores. Sori generally hypoj)hyllous, on indistinct spots, scattered or in little clusters here and there, minute, soon naked, surrounded by the cleft epidermis, cinnamon; spores subglobose to ovate, distantly but sharply echinulate, brownish-yellow, 18—28 x 18 —22 /A; epispore brownish-yellow, about H fl thick, with two germ-pores; contents -p.^^^^ ^j PMseohmm. colourless. Teleutospore and ure- Teleutospores. Sori similar, but con- fluent, larger, amphigenous and blackish-brown; spores sub- globose to ovate, rounded above, with a wide germ-pore and a hemispherical hyaline papilla, smooth or rarely provided, espe- cially near the apex, with a few hyaline warts, chestnut-brown, 24—35 X 18—25 fx;
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