MILDEWS, RUSTS AND SMUTS 175 
the large powdery orange patches of the aecidium and 
iiredospore stages being very conspicuous. 
Phragmidium rosae-alpinae, Winter; Plowr., Ured., 
p. 226. 
Aecidia. Sori on the leaves, small and dot-like, on the 
stem large and powdery, orange ; spores angularly globose 
or elliptical, echinulate, 15—30 p. paraphyses subglobose, 
almost colourless. 
Uredospores. Sori small, yellow; spores globose or 
broadly elliptical, echinulate, yellow, 15—25 p. 
Teleutospores. Sori very small, scattered on the leaf, 
black ; spores cylindrical, but narrowed at both ends and 
almost spindle-shaped, tip with a conical, colourless papilla, 
7—ii-septate, dark brown, warted, 100—170 X 20—30 p, 
pedicel long, slightly swollen at the base. 
Syn. Phragmidium jusiforme, Schroeter. 
On P.osa alpina. Switzerland, Bavaria, Hungary. On 
various wild roses in the United States. 
Phragmidium rubi-idaei, Winter ; Plowr., Ured., p. 226. 
Aecidia. Sori small, on the upper surface of the leaf, 
greenish-yellow, numerous, circular and usually with a 
small opening in the centre of the ring ; spores in short 
chains, echinulate, orange-yellow, 20—35 p ; paraphyses 
subglobose, deep yellow. 
Uredospores. Sori small, scattered, pale orange ; spores 
globose or broadly elliptical, yellow, 15—25 p. 
Teleutospores. Sori on the under surface of the leaf, 
usually numerous, scattered, black ; spores cylindrical, 
tip rounded or somewhat narrowed, with a conical, pale or 
colourless papilla, 5—9-septate, warted, dark brown and 
opaque, 100—160 X 20—37 p, pedicel long, swollen at the 
base. 
Syn. Aregma gracile, Grew. 
Phragmidium gracile, Berk. 
Puccinia gracilis, Grev. 
Uredo rubi-idaei, Pers. 
Uredo gyrosa, Reb. 
On leaves of raspberry (Ruhas idaeus). Only met with 
on the raspberry in Europe, but occurs on Ruhus occiden- 
talis in North America. 
Phragmidium fragariastri, Schroet. ; Plowr., Ured., p. 
220 (in part). 
Aecidia. Sori roundish, scattered or growing into each 
other and forming larger patches, especially on the stem 
and veins of the leaves, orange-yellow ; spores subglobose 
