Phragmidium. ao 
Lixsiccats, 
Berk , ros. Cooke, i. 22, 67; ii, 100. Vize, “ Fungi Brit.,” 5. 
On Potentilla tormentilla. 
BIoLocy.—I have followed Schroter in the arrangement of these 
species, but am by no means sure this is distinct from the preceding. 
Dietel states (“ Beitrige zur Morph. Biol. der Uredineen,” 1887, p. 9) 
that the teleutospores of P. od¢usatum germinate in the autumn, and 
they resemble Puccinia teleutospores in having an apical germ-pore 
in the upper cell, and only one lateral germ-pore in each of the other 
cells. 
Phragmidium violaceum. (Schultz.) 
cidiospores—Sori hypophyllous, roundish or elongate, often in 
circular clusters on irregularly rounded spots, above which the 
corresponding upper surface of the leaf is reddish, and sur- 
rounded by a broad, irregular, violet-red margin. Paraphyses 
very few. Spores in short chains, globose or elliptical, echinu- 
late, orange-yellow, 11-30 X 17-24. 
Uredospores—Sori greenish yellow, roundish, pulverulent. Spores 
globose, ovate or elliptical, echinulate, verrucose, yellow, 19-25 
X 15-20 
Teleutospores—Sori thick, black, rather persistent. Spores cylin- 
drical, blunt or rounded at both ends, opaque, cells three 
to five, mostly four, verrucose with colourless hemispherical 
flat warts, apex generally provided with a wart-like brown 
point, 70-80 X 25-304. Pedicels long, slightly clavate below. 
Synonyms. 
Schrot., Zoe. cit, p. 353. Winter, loc. cit, p. 231. 
Puccinia violacea. Schultz, “ Prodr. Flor. Starg.,” p. 459. 
Lecythea ruborum, Lévy. Cooke, “Micro. Fungi,” 4th edit., 
p- 221, in part. 
LExsicati. 
Vize, “ Micro. Fungi Brit.,” 442. 
On Rubus fructicosus. 
