No. 5.] USTILAGINE.E OF CONNECTICUT. 2j 



nally considered by the writer as belonging under S. Ellisii, 

 since their sori involve the entire inflorescence, instead of 

 being limited to the ovaries. The spores, however, are 

 smaller than those of the typical members of that species, and 

 both the spores and spore balls are like 6". Everhartii, so 

 they may possibly be only vigorous specimens of this species, 

 in which the sorus has involved the whole inflorescence. 



Sorosporium Syntherismas (Pk.) Farl. Figs. 7, 36. The 

 elongated sori usually involve the entire inflorescence, 3-7 cm. 

 in length, or more rarely are limited to the individual spikelets, 

 when they are shorter; they are provided with a prominent 

 false membrane which ruptures irregularly, disclosing the black- 

 brown spore mass, within which are often shredded filaments 

 of plant tissues. The sterile cells of the membrane are hya- 

 line, oblong to cubical or subspherical, and tend to adhere in 

 filaments when crushed apart. The spore balls, often evanes- 

 cent when old, are irregular oblong to subspherical, and 40- 

 100 fj in length. The reddish brown spores are minutely ver- 

 rucose (the inner often smooth and more lightly colored), 

 subspherical, polyhedral or occasionally more elongated, 

 chiefly 9-1 3n in length. 



Host and Distr. : Cenchrus tribidoides, Savin Rock, Aug. 

 30, 1902 ; Montowese, Sept. 20, 1902. 



This species should also be looked for on Panicum pro- 

 liferum, which is a common host for it elsewhere. 



Tolyposporium Wor. 



The sori are usually found in the ovaries, forming a gran- 

 ular spore mass at maturity. The spore balls are of medium 

 size, dark colored, and composed of numerous permanently 

 united spores. The spores are bound together by ridged folds 

 or thickenings of their outer walls, and are of small to me- 

 dium size. Figs. 10, 40. 



The spore balls can be ruptured by pressure, when the 

 outer darker colored covering often breaks apart as ridges or 

 spine-like projections on the light colored or hyaline spores. 

 So far 13 species have been described, though it is doubtful if 

 all belong to this genus; 2 of these occur in North America, 



