224 British Uredinee and Ustilaginee. 
Phragmidium rubi. (Pers.) 
icidiospores 
Uredospores 
Teleutospores—Sori black, small, loose, round, often confluent. 
Spores cylindrical, rounded, verrucose, cells six to eight (but 
mostly five to six), apex an awl-shaped, hyaline point (5—1o0p), 
77-100 X 25-28u. Pedicels long, bulbous, 70-80, long, 154 
wide. 
\ As in PA. violaceum. 
Synonyms. 
Schrot., doc. c¢t., p. 353- Winter, /oc. cét., p. 230. 
Puccinia mucronata, B rubi. Pers., *‘ Disp. Meth.,” p. 38. 
Puccinia rubi, Sow., t. 400, fig. 9. Purton, “ Midl. Flor.,” 
vol. il. p. 726; iii. p. 507. Grev., “Flor. Edin.,” p. 428. 
Puccinia ruborum, D.C. Grev., “Flor. Edin.,” p. 438. Johnst., 
“ Flor. Berw.,” vol. ii. p. 199. Berk., “ Eng. Flor.,” vol. v. p. 382, 
pro parte. 
udium rubi, Sow., t. 398, fig. 1. 
Lecythea ruborum, Lév. Cooke, “ Micro. Fungi,” 4th edit., 
p. 221, in part. 
Aregma bulbosum, Fries. Berk., ‘ Eng. Flor.,” vol. v. p. 358. 
Phragmidium bulbosum, Fries. Cooke, “Hdbk.,” p. 491; 
“ Micro, Fungi,” 4th edit., p. 201. 
LExsiccati. 
Baxter, 33. Cooke, i. 18, 20; ii. 65, 99, 209. Vize, “ Micro. 
Fungi Brit.,” 443, 449. 
On Rubus fructicosus, cestus, saxatilis. 
BIOLOGY.—The teleutospores often remain attached to those leaves, 
which survive the winter and may be gathered in spring, when the 
teleutospores will germinate very readily if placed in water. The 
zecidiospores have six germ-pores. 
Phragmidium subcorticatum. (Schrank.) 
A cidiospores—Similar to those of the preceding species, but when 
they occur on the peduncles and stems they form large pulve- 
.rulent orange sori. Spores rounded or ovate, finely echinu- 
late, orange-yellow, 17-25 X 12-204 
