A utetmromyces. i 2 3 



Synioiiyvis. 



Uromyces liiiwnii {Vi. C). Winter in Rabh., " Krypt. Flor.," 

 vol. i. p. 156. 



Pucciuia limonii. D. C, " Flore frang.," vol. ii. p. 595. 



yEcidium statices, Desm. Cooke, " Micro. Fungi," 4th edit., 

 p. 197. 



Undo statices, Desm. Cooke, " Hdbk.," p. 528; "Micro. 

 Fungi," 4th edit., p. 217. 



Uredo armeria, Duby. Berk., " Eng. Flor.," p. 377. 



Uroinyces limonii, Lev. Cooke, " Hdbk.." p. 518; "Micro. 

 Fungi," 4tli edit., p. 212. 



Exsiccati. 



Cooke, i. 632, 444, 591 ; ii. 83, 324. Vize, "Fungi Brit.," 60, 

 71 ; "Micro. Fungi Brit.," 128. 



On Statice limonium, Armeria vulgaris. 



u^cidiospores, May and June ; uredospores, June and July ; 

 teleutospores, July to October. 



Biology. — The jecidia occur on pallid spots, which are usually 

 tinged with purple round their circumference ; on the stems they 

 cause considerable distortion. As the fungus occurs in situations 

 which are often covered by the spring tides, it is obvious that the 

 presence of sah is not inimical to it. 



Uromyces polygoni. (Pers.) 



.'^cidiospores — Spots generally hypophyllous, rarely cauline. 



Pseudoperidia in small irregular clusters, rather flat, with 



broad, whitish torn edges. Spores subglobose, finely verru- 



cose, pale yellow, 15— 23/x in diameter. 

 Uredospores — Sori brown, scattered, rarely circinating, amphi- 



genous, pulverulent. Spores globose or ovate, pale brown, 



finely echinulate, 20—25 ^ 15-20/^. 

 Teleutospores — Sori blackish, on the leaves roundish, on the stems 



elongated. Spores globose or elliptical, smooth, chestnut 



brown, apices thickened, rounded or conical, 23-35 X 15-20/x, 



Pedicels yellowish, long, persistent. 



