MILDEWS, RUSTS AND SMUTS 
125 
EPILOBIUM 
• ■ * • . r. 
Puccinia epilobii-tetragoni. Winter. , ^ 
Pycnidia. Scattered amongst the aecidia, honey-colour. 
Aecidia. Usually covering the entire under surface of 
the leaves, scattered or crowded, flat, edge recurved;. tofri^Ci 
whitish ; spores angularly globose, very minutely waited,’ 
orange;’16—26 p diam. /v. 
Uredospores. Sori powdery, chestnut-brown,'.scattered,-, 
or in rings, sometimes growing into each other, on the • 
under surface of the leaves; spores globose, ellipticah;, 
or ovate, echinulate, brown, 20—30 x 15—25 p. - ' i i p 
Teleutospores.- Sori often in concentric rings,'’ soonn-, 
naked, powdery, dusky brown, on the under surface: of the ,--t 
leaf ; spores elliptical or ovoid, ends rounded, tip thickened, 
slightly constricted at the septum, smooth, brown, 25— 
40 X 16—25 p, pedicel colourless, slender deciduous, 
Syn. Puccinia pulverulenta, Grev.; Plowr., Ured,,,^^. 151. 
. ; Aecidium epilohii, D.C. ^ ^ ^ 
Trichobasi^ epilohii, Berk. . . 
On Epilohium angustifoHum, E. Kirsutum, E. pdfyU', 
fJorum, E. roseum, E. tetragonum, and E. montanum'."^ 
Britain, Europe, and N. America. ' ' 
The mycelium is perennial in the host-plant. 
Puccinia epUobii, D.C.; Plowr., Ured., p. 
Teleufospores. Sori circular, soon surrounded by the ' 
ruptured epidermis, powdery, reddish-brown or..blackish-^ 
brown, scattered or crowded over the entire under .surface 
of the leaf, rarely clustered; §pores oblong^ or .^elhptical', 
ends rounded, rarely slightly narrowed at the bas^,'tipfnot.*.,' 
at all,,or very.sliglitly thickened, strongly constrict‘d .at dh,e.j', 
septum, very delicately warted, brownish, 30—5o''xb 
25 p,- pedicel colourless, short. ^ " 
On Epilohium palustre. Britain, Europe, and Greenland!.,,*, 
Known, amongst the species parasitic on Epilohium' 
by its habit, the sori being scattered over the entire under 
surface of the leaf. , 
I . ,. 
VIOLACEAE 
VIOLA .. 
Puccinia violae, D.C. \ 
Pycnidia. In small groups, yellowish honey-colour. * ,, 
Aecidia. Present on every green part of .the 'plant> ' 
in , crowded clusters on more or less, circular,. cohcaye, 
yellowish patches on The leaves, scattered on’t^ 
