1891.] A.Barclay — Additional Uredinesie f7-otn Simla. 217 



quent epiphyllous eruption opposite the beds below. The upper surface 

 of attacked leaves is rendered conspicuous by the yellow zones surround- 

 ing the pustules. Pustules were also found on the petiole and smaller 

 stems, though not so frequently. 



The spores are fairly easily detached, coming of£ as a rule with no 

 portion of stalk adhering. They are dark brown, somewhat irregular 

 in size and shape, mostly distinctly constricted at the septum, and 

 mostly narrowing towards the free end, where there is a slight pale 

 mammilla or conical thickening (PI. V, fig. 12). At the base the spore 

 is sometimes rounded, and sometimes narrowed. It is smooth on the 

 surface. The fresh spores examined at once in water measure 40 — 28 

 X 18 - Ufji. 



No uredospores are apparently formed by this species, since I got 

 specimens of teleutospores from the earliest stages of development. 

 The teleutospores would not germinate immediately after ripening. 



There is no doubt, I think, that this fungus is distinct from P. 

 PJilomidis, Thiim, 



LEPTOPUCCUsTIA. 



PUGCINIA USTALIS, Berk. ? 

 On Hanunculus hirtellus, Eoyle. 



I found seedlings of this plant bearing teleutospore pustules on the 

 Mattiana hill on the 4th September. The pustules were quite youno-, 

 and there was no trace of uredospore. The teleutospore pustules were 

 small, dark, circular, and hypophyllous, with spots of paling on the 

 upper leaf surface. These pustules were confined to the youngest leaves 

 and were never found on the upper ones. The pustules had a distinct 

 though not pronounced circinate arrangement. The spores are yerj 

 firmly adherent ; they are long, more or less spindle-shaped, pale yellowish 

 brown, much thickened and conical ~t the free end, well constricted at 

 the septum, and narrowing towards the stalk. The surface is smooth 

 (PL y, fig. 13). In scrapings I noticed many empty spore cases, and I 

 presume therefore that the species is a Leptopuccinia. When just 

 wetted the spores measured 61 — 46 x 23 — S/x, the apical thickening 

 being 10 — 4/a in depth. I placed some spores in water on the 10th 

 September, and on the following day found some had germinated. The 

 sporidia are oval or somewhat semilunar, colourless, and 13 x 6/jl in 

 measurement. The sterigmata are four in number, short, conical, and 

 pointed, and together with the whole premycelium colourless. 



This is possibly P. ustalis, Berk. ; but I have no access to the 

 spore measurements. 



