On the Life ■ history of Puccinia Geranii 
silvatici, Karst., var. himalensis. 
BY 
A. 
BARCLAY, M.B., 
Bengal Medical Service . 
With Plate IV. 
I N this paper I propose to describe the life-history of a 
Puccinia on Geranium Nepalense , Sweet, which is in- 
teresting in several respects. In the first place it is complete 
without any other form of spore-formation than the teleuto- 
spore : in the second place there are two distinct crops of 
these spores during the spring and summer : and in the third 
place it is both a Leptopuccinia and a Micropuccinia. 
I am of course aware that the first point, viz. the absence 
of any other spore-form in an otherwise complete species, is 
not unique; but experimentally proved instances of such 
cases are few enough to render any additional example 
interesting. Thus for example P. Arenariae , Schum. ( P . 
Dianthi , D. C.), a so-called Leptopuccinia, is, I believe, com- 
plete without any other spore- form ; and so also is P. Adoxae , 
D. C., a Micropuccinia. Plowright 1 writes of the latter : — 
‘ Mr. Soppitt placed some over-wintered teleutospores in 
active germination on healthy plants, in March, 1888; in ten 
days the teleutospores had reproduced themselves without 
the intervention of either uredospores or aecidiospores.’ 
Lastly, Chrysomyxa Abietis , Wallr. is another example of the 
same kind. 
I have had this fungus under observation in nature for 
1 ‘ British Uredineae and Ustilagineae,’ p. 208. 
[Annals of Botany, Vol. V. No. XVII. December 1890.] 
