2 24 British UredinecE and Ustila^ineo' 



Phragmidium rubi, (Pers.) 



JE-cidiospores ) . . „, . , 

 ^^ , > As in Fit. vwlaceum. 



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 (5-1 o/a), 



77-100 X 25-28ya. Pedicels long, bulbous, 70-80/^ long, 15/^ 



wide. 



Synonyms. 



Schrot., loc. cit., p. 353. Winter, loc. cit., p. 230. 



Puccinia nmcronata, /3 rubi. Pers., " Disp. Meth.," p. 38. 



Piiccinia rubi, Sow.,, t. 400, fig. 9. Purton, " Midi. Flor.," 

 vol. ii. p. 726 ; iii. p. 507. Grev., "Flor. Edin.^" p. 428. 



Fuccinia ruboru?n,D. C Grev., "Flor. Edin.,"p. 438. Johnst., 

 " Flor. Bervv.," vol. ii. p. 199. Berk., " Eng. Flor.," vol. v. p. 382, 

 pro pai'te. 



Aicidiuni rubi. Sow., t. 398, fig. i. 



Lecythea ruboruni, Lev. Cooke, " Micro. Fungi/' 4th edit., 

 p. 221, in part. 



Aregma bulbosum, Fries. Berk., "Eng. Flor.," vol. v. p. 358. 



Fhragmidiuni bulbosum, Fries. Cooke, "Hdbk.," p. 491; 

 " Micro. Fungi," 4th edit., p. 201. 



Exsiccati. 

 Baxter, 33. Cooke, i. 18, 20; ii. 65, 99, 209. Vize, "Micro. 

 Fungi Brit.," 443, 449- 



On Rubus fructicosus, cxsius, 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 

 secidiospores have six germ-pores. 



Phragmidium subcorticatum. (Schrank.) 



jEcidiospores — 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 12-20/x,. 



