1889.] 



occurring in the neighhonrlwod of Simla. 



245 



this Society above quoted. I then noted that the teleutospores are 

 formed in autumn, and that I had not observed their germination. 

 Early this Sjsring (middle of February), however, I observed a few 

 young seedlings with teleutospore pustules on the young green leaves 

 j of the same characters as those I found in autumn, and these germin- 



, j ated early in March in water. The promycelium of tlie upper cell 



emerges from the upper half of the upper cell, but not from its apex 

 (see rig. 12, PI. XIII), whilst that from the lower cell emerges from a 

 point nearer the stalk than the septum, and takes a course in a direction 

 opposite to that of the upper promycelium. The sporidia are long nar- 

 row bodies, about 26 jU. to 18 in length and 8 fn. in -width, on short 

 pointed sterigmata, and the promycelial tube opposite a sterigma is 

 about 10 fJL in diameter. The sporidia frequently germinate while still 

 attached to the promycelium. 



Early in March, I found similar young seedlings already attacked 

 by an ^cidium, but, although I made several attempts to reproduce 

 the Kcidium -with these freshly gathered and.germinable teleutospores, 

 I did not succeed. I am therefore forced to believe that the teleuto- 

 spores are not genetically related with the rccuZtKHi-beariug fungus on 

 the same host. The matter requires further investigation. 



LIST II. 



17. P0CCINIA Aeundinell^, nov. sp. 



on Arundinella setosa, Trin., and A, WalUchii, Nees. 

 This fungus is not uncommon. The teleutospore beds are oval or 

 slightly linear on the under surface of the blade. The uredo pustules 

 are peculiarly brilliant brick red, and are formed in July and August. 

 The teleutospores are brown bodies slightly constricted at the septum, 

 somewhat thickened at the free end, and breaking off usually with a 

 long portion of stalk adhering (Figs. 7, 8, PI. XIV). In each cell a nuclear 

 vesicle is often pi'esent. The whole length of the spore when moisten- 

 ed is about 46 fn, of which 24 /x belong to the upjier cell, and 22 fi to the 

 lower. The breadth at the septum is about 20 yn.. After a winter's rest, 

 these spores readily germinate in water, each cell throwing out a charac- 

 teristic promycelium. That from the upper cell usually emerges first 

 from the apex of the spore, while that from the lower cell issues 

 from a point near the septum (Fig. 7, PI. XIV). Each promycelium 

 forms four sporidia on as many sterigmata, and the sporidia, which are 

 oval or liidney-shaped, measure on an average 10 x 7 ju,, varying from 

 9 X 5 /n to 11 X 7 jU,. Tlio portions of stalk adhering to the spore 

 measure 110 to 120/* in length. 



