58 British Uredinee and Ustilaginee. 
Uredo labiatarum, D. C. Grev., “Flor. Edin.” p. 436. 
erk., “Eng, Flor.” vol. v. p. 378. Johnst., ‘Flor. Berw.,” 
ol. ii, p. 203. 
LExsiccatt. 
Berk., 217, 232, 233. Cooke, i. 395 ii. 33,60, 444. Vize, 
Fungi Brit,” 14, 15, 75; “ Micro. Fungi Brit.” 
On Mentha rotundifolia, sylvestris, aquatica, arvensis, viridis, 
wiganum vulgare, Calamintha clinopodium. 
May to October. 
BIoOLOGy.—The ecidiospore mycelium: is diffused. and probably. 
srennial —at any rate, lasting for more than one year ;, at least, this 
dpears to be the case with JZ, virddis, which I. have cultivated for a. 
2riod of three years. The mycelium of the uredospores and teleuto- 
dores is purely local. 
Johnoston records this species on Ajuga reptans. 
Pucecinia zgra. Grove 
Ecidiospores—Pseudoperidia on all: green. parts. of the plants, 
scattered, not collected on. swollen roundish or elliptical spots, 
with torn, white, somewhat recurved margins. Spores roundish 
or oblong, angular, smooth, orange-yellow, 17-21 X 14-16p. 
7redospores—Sori numerous, amphigenous, on yellow spots, not 
very small, scattered or collected in groups, roundish, flatly 
onvex, covered with the silvery, shining, persistent epidermis. 
Spores elliptical or obovate, finely echinulate, brown, 28-30p, 
‘leutospores—Sori resembling those of the uredospores. Spores 
elliptical, oblong, or roundish, very irregular, rounded or taper-~ 
ing at the base or apex,.sometimes truncated, smooth, not 
constricted, dark brown, 22-30 X 18-244. Pedicels short,. 
hyaline. 
Synonyms. 
Puccinia agra. Grove, Jour. of Bot., vol. xxi. (1883), p. 274, 
cidium depauperans, Vize. Cooke, “ Micro. Fungi,” 4th 
dit., p. 195, 
: Exsiccati, 
Vize, ‘Micro. Fungi Brit.,” 56. 
On Viola cornuta, lutea var. amena, 
May to September. 
