1891.] A. Barclay — Additional Uredineae /row Simla. 213 



harbour only two species of Puccinia (P. graminis and P. coronata). 

 This is therefore probably a new species. 



Ueomtcbs pulvinatus, Kalchb. et Cooke. ? 



On Euphorhia hypericifolia, Linn. var. indica. 



Mr. Lace collected a Puccinia on this species of Euphorbia in 

 October in a low valley of Bashahr, about 6,000 feet above the sea level. 

 The under-surfaces of the leaves were pi'ofusely covered with dai^k 

 brown circular pustules, usually distinct from one another, but some- 

 times coalescing. The spores are readily scraped off. These consist of : — 

 uredospores which are yellow, thin-walled, spiny, and 20 x 19yu,. ; and 

 teleuto spores. These are small, brown, thick-walled, single-celled, with 

 a small piece of stalk adhering (sometimes none), warted on the surface, 

 and generally with a clear nuclear vesicle. When just wetted they 

 measure 21 — 17 x 18 — 16/a. 



Of the several species of TJromyces which inhabit species of Eu- 

 pJiorbia the one I have just described comes neai^esfc IT. pulvinatun, 

 Kalchb. et Cooke, and TJ. Myristica, B. et B. The former has been 

 described from South Africa, and the latter from Korth America. In 

 size of spore the Himalayan fungus resembles the former more than the 

 latter ; but the spores of U. pulvinatus are smooth, whilst those of U. 

 Myristica ai"e punctated like mine. 



MICRUROMYCES or LEPTUKOMYCES. 



Uromycbs ambiens, Cooke. 



On Buxus sempervirens, Linn. 



Specimens of this fungus were gathered by Mr. Lace in the Bhabar 

 Valley, Bashahr (6,000 feet) in October. The leaves were studded with 

 circular patches 1 — 4 mm. in diameter. Some of these were orano-e 

 yellow, and others pale in the centre, but surrounded by a black circle. 

 The centres of all patches contained very prominent papillae (sper- 

 mogonia ?). All the pustules were hypophyllous. In the case of 

 patches which were not black the central papillae were surrounded by a 

 circular mound covered with epidermis. This mound was a circular 

 covered spore pustule. The spores were orange red, but as they were 

 thick walled and otherwise like immatiire teleutospores I do not reo-ard 

 them as uredospores. The black circles surrounding the other patches 

 were naked teleutospore beds. The spores from such parts are laro-e 

 yellowish brown, round to oval, fairly firmly adherent, coming off usually 

 with a short stalk or none, thick walled, showing a distinct pore at the 



