ON GRAMINE.E 



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- 

 spores and luesospore, on .4. repens, 

 Pomerania (ex herb. Sydow). 



