]889.] 



occurring in fJte iieighhunrhood of Simla. 



247 



spores are very firmly adherent, and, when scraped off, become detached 

 with a long piece of sUilk attached (Fig. 6, PI. XIV). The spores are 

 spindle-shaped, pale brown when seen by transmitted light, well con- 

 stricted at the septum, and with a distinct apical thickening. Each cell 

 of the spore usually displays a clearly defined nuclear vesicle. The 

 fresh spore, when moistened, measures on an average 45 6 /jl ; the upper 

 cell is usually a little longer than the lower, which contracts towards the 

 stalk. The width at the septum is about 13 jx, and the thickening at 

 the free end is 6 to 7 /x. Towards the end of March these spores ger- 

 minate in the usual way. The sporidia are oval, and measure 8 X 6 yu. 

 I have not mot with any uredospores on this grass. 

 lieinarks. — This is probably a new species. 



20. PUC'CIKIA ClIUYSOPOfil, nov. sp. 

 ou Chnjsnjvigoa iinjUus, hum. 



This is a very abundantly distributed parasite, forming well raised 

 plump, oval, or broadly linear dai'k brown pustules : they germinate very 

 readily in spiing in water. After 24 hours in a water cultivation they 

 were observed to have thrown out long promj-celia, into the distal ends 

 of which the orange-yellow contents of the spore liad wandered. The 

 end of the promycelium divides into four cells, each of which produces 

 a sporidium on unusually long sterigmata. The sporidium (14 x 12 /a), 

 which is oval, often germinates while still attached to the sterigma, for- 

 ming a secondary sporidium. The germ tube of the primai-y and secondary 

 sporidium is often slightly spiral (Pig. 10, PI, XIV). The promycelium 

 of the upper cell emerges from a point near the apex of the cell, and 

 that from the lower from a point near the septum (Fig. 9, PI. XIV). The 

 promyoelia were often observed to acquire nnusual forms, such for ex- 

 ample as is represented in the figure, where the promycelium of the 

 upper cell has divided into three cells, two of which have thrown out 

 remarkably long and stout sterigmata, which, bowever, remained sterile. 

 The cultivation was in water. The spores are slightly constricted at the 

 S3ptum, and the apex is little if at all thickened. On an average the 

 moistened spore measures 43/* in total length, and "24 /x at the septum. 

 In each cell a well defined nuclear vesicle is usually seen. The de- 

 tached spore has usually a very small portion of the stalk adhering (o 

 it. The spores are iirmly set in their beds. 



The tcloutosporos are preceded by uredospores, which are round or 

 oval orango-i'cd bodies. Young teloutosporos are often seen in fully 

 developed uredopustules. The uredos])Oi'os measure, when moistened, 

 from 23 /u. in diameter to 33 x 2G /x, the average being 287 x 2G 5 /x. 



Bamarhs. — This is probably a new species. 

 32 



