226 A. Barclay — A ddUioHal JJreflineae from Simla. [No. 3, 



TKis fungus is identical with that I have described as Gaeoma 

 Mori ; and as I have subsequently found that the peridium is distinctly 

 present though incoherent, I feel disposed to relinquish the name Gaeoma 

 Mori and to substitute Aecidium Mori. 



Aecidium plavescbns, n. s. 



On Senecio rufinervis, D. 0. 

 I found this plant in August bearing an Aecidium in the Mashobra 

 woods. The aecidial patches are indicated conspicuously by brown 

 patches with yellow irregular halos around them on the upper leaf 

 surface. On the under surface the peridia are indistinctly seen against 

 the white tomented natural leaf surface, as they are pale in colour. 

 The peridia are densely aggregated together, and always on the under 

 leaf surface. The tubes are short and open stellately. I counted from 

 one to thirty-two aecidial patches on single leaves. The patches varied 

 from a half to 2 cm. in diameter. The aecidiospores are oval or round, 

 pale orange red, measuring when well moistened 22 — 20 X 16 — 14/x. 

 The peridial cells are almost isodiametric, very rugose on the surface, 

 with short ridges and spines, and measuring 28 -22 x 22 - 20/a. 



(PI. IV, fig. 8). 



Later in the season leaves in the same locality bore uredospores, 

 and still later teleutospores in the form of Goleosporium. I have un- 

 fortunately had no opportunity of examining these forms. 



Two species of Aecidia on species of Senecio are noted by Saccardo, 

 Aec. Eualtatinuon, S-peg., and Aec. sclerothecium, Speg. ; but the spores 

 of the Simla species are much smaller than those of either of these two 

 species. 



Aecidiom Aquilegi^, Pers. ? 



On Aquilegia vulga7-is, Linn. 

 Mr. Lace collected this plant on the 9th August, 1890 at an eleva- 

 tion of 10,000 feet bearing an Aecidium. The peridia are hypophyllous, 

 formino- a patch of yellow below with a paled area abo^e on which 

 spermogonia may be seen with a field lens. The peridia open by a clean 

 regular margin. The peridial cells are angular, almost isodiametric, five 

 to° six-sided, spiny and ridgy, and about 26 X 20/*. The aecidiosjTOres 

 are round or facetted when just scraped off, tuberculated, and 24 - 18 

 X 18 - 12/x. 



This fungus is very possibly Aec Aqidlegiae, Pers. though the 

 spores in the latter are said to be larger (30 - 16 x 20 ~ 14/x,) and 

 perhaps more spiny. 



