. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. ON 281 On leaves (living or fading) of Bracliypodium pinnatum, B. silvaticum. Not uncommon. July—November, teleuto- spores not before September. (Fig. 212.) Both Plowright and Fischer mention that, mixed with the uredospores, are numerous hyaline capitate paraphyses ; Sydows' Monographia omits all mention of these. The specimens which I have seen show them always in great numbers. Often the pedicel of the teleutospores is almost non-existent, and the basal cell-wall is strongly thicke
. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. ON 281 On leaves (living or fading) of Bracliypodium pinnatum, B. silvaticum. Not uncommon. July—November, teleuto- spores not before September. (Fig. 212.) Both Plowright and Fischer mention that, mixed with the uredospores, are numerous hyaline capitate paraphyses ; Sydows' Monographia omits all mention of these. The specimens which I have seen show them always in great numbers. Often the pedicel of the teleutospores is almost non-existent, and the basal cell-wall is strongly thickeued. The upper margin of the teleuto- spore is often undulated ; occasionally one is met with having three cells. An secidium, though often suggested, has not yet been discovered for this species. Distribution : Central and North-Western Europe. 133. Puccinia Agropyri Ell. et Ev. jEcidium Clematidis DC. Flor. fr. ii. 243. Plowr. Ured. p. 265. JE. Ranunculacearum var. Clematidis Cooke, Handb. p. 539. Puccinia Agropyri Ell. et Ev. in Journ. Mycol. vii. 131. Sacc. Syll. xi. 201. Sydow, Monogr. i. 823. Fischer, Ured. Schweiz, pp. 350, 555, f. 255. McAlpine, Rusts of Australia, p. 113. Spermogones. Amphigenous. jEcidiospores. iEcidia hypophyllous and on the petioles and stems, usually on brownish spots, causing considerable distortion, scattered or in clusters of very varied size, shortly cylindrical, with white torn broadly re volute margin; spores verruculose, orange, 18—27 fi. [Uredospores. Sori amphi- genous but generally hypophyl- lous, on irregular yellow spots, scattered, oblong or linear, 1— 1^ mm. long, cinnamon ; spores more or less globose, delicately echinulate, pallid-yellow, 19— 27 /j, ; epispore rather thin, with three or four germ-pores. Teleutospores. Sori epiphyllous, scattered, sometimes con- fluent, oblong or linear, as much as 3 mm. long, covered always by the lead-coloured epidermis, black; spores cylindric-clavate,. Fig. 213. P. Ayropyri. Teleuto- spor
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