212 A. Barclay — Additional TJredwesie from Simla. [No. 3, 



surface ; and it appeared to me probable that they fii'st emerged from 

 this surface, and later from the upper surface, at a more advanced stage. 

 Each pustule was round and convex, and without any paling of tissue 

 around. On a few of the younger leaves I found some paler brown 

 uredo pustules, on both surfaces of the leaf. Except in colour they 

 were similar to the teleutospore pustules. 



The uredospores are brownish red, oval to round, thin walled, very 

 spiny, and with a few immature teleutospores among them (PI. V, fig. 19j. 

 They measured when fresh and just wetted 26 — 19 x 19 — 18/x, 



The teleutospores are deep brown, oval, very deciduous, with a 

 portion of colourless stalk adherent, with a pale brown shallow mammilla 

 at the free end, a clear nuclear vesicle, a germ pore just under the 

 mammilla, and a smooth surface (PI. V, fig. 19). The fresh spores just 

 wetted measured 35 — 27 x 22 — 20/a. The portion of adherent stalk 

 measured up to 40/a in length. These spores refused to germinate, 

 probably I'equiring a period of rest. But some uredospores germinated 

 throwing out simple long unbranched tubes. 



As this host is nearly related to Lathyrus sativus, I at first thought 

 the fungus must be the same as that I have described elsewhere* on 

 that plant, namely, Uromyces Pisi, Pers. ; but the uredospores of the 

 fungus on Vigna are considerably smaller, whilst the teleutospores are 

 larger. It is therefore probable that the species I have here described 

 is different, and I have named it Uromyces Vignae. 



UrOmtces Agroptri, n. s, 



On Agrop'i/rum, sp. 



This grass was collected also by Mr. Lace at Ralli (Bashahr^, 7,000 

 feet, in October. 



On some leaves there were light brown pustules on both leaf 

 surfaces, and these contained uredospores. Other pustules were long, 

 linear and black on the under leaf surface, somewhat resembling pustules 

 of P. gramiiiis. 



The uredospores are round to oval, pale brown, densely warted, with 

 several germ pores (4 to 5), and measured when just wetted 23 — 20 x 21 

 -19/x. 



The teleutospores are lightly adherent to their beds, coming off with 

 a small piece of stalk attached. They are light yellowish brown, much 

 thickened at the apex, smooth on the surface, with a clear nuclear 

 vesicle, measuring when just wetted 37 — 28 x 18 — IG^tt. 



Hitherto, so far as I am aware, this genus of grasses was known to 



* Journal of Botany, Sept, 1890. 



