MILDEWS, RUSTS AND SMUTS 
79 
Teleutospores. Sori on the under surface of the leaf, 
arranged as in the uredo form, minute, brown ; spores 
subglobose or elliptical, tip not thickened, rather coarsely 
warted, brown, 26 —^0 x 20—35 p, pedicel colourless, 
deciduous. 
S3m. Uredo alchemillae, Pers. 
Uredo intriisa, Grev. 
Uromyces intrusus, Lev. 
On Alchemilla vulgaris. 
The mycelium of this species is perennial in the host- 
plant, and causes distortion and dwarfing of the leaves 
and elongation of the stem. The above remarks apply 
to the action of the fungus produced from the perennial 
mycelium present in the host-plant. Leaves that are 
infected by the uredospores of the first generation, do not 
become distorted. 
RANUNCULACEAE 
Uromyces ficariae, Lev., Plowr., Ured., p. 140. 
Teleutospores. vSori on both surfaces of the leaf, minute, 
rounded, in round or elongated patches, often crowded 
and running into each other, forming large pustules, soon 
naked and powdery, dusky brown ; spores subglobose or 
ovate, pale brown, smooth usually with a minute pale wart 
at the tip, 22—^44 x 16—26 p, pedicel short, colourless, 
deciduous. Uredospores are sometimes found mixed with 
the teleutospores ; spores subglobose or elliptical, minutely 
echinulate, 18—30 x 17—25 p, 3 germ-pores. 
Syn. Uredo jicariae, Schum. 
On Ranunculus ficaria. Europe generally. 
The fungus often causes distortion of the stem of the 
host-plant. 
Uromyces aconiti-lycoctoni, Wint. 
Aecidia. On yellow spots on the under surface of the 
leaves, or on the petioles, forming groups, yellow, edge of 
cup recurved ; spores minutely warted, 20—35 X 18—30 p. 
Teleutospores. On yellowish spots on the upper surface 
of the leaf, sori usually in groups ; spores subglobose or 
elliptical, tip very slightly thickened, smooth, brown, 20— 
40 X 20—30 p, pedicel short, deciduous. 
Syn. Uromyces aconiti, Fuckel. 
On Aconitum lycoctonum, and other species of Aconite. 
Sometimes occurs on cultivated plants in this country. 
Europe generally. United vStates. 
