RKPORT OF THE STATE BOTANIST 1902 29 



white crust, which at length ruptures and disappears, exposing 

 the surface of a jet black, firm, but slightly pulverulent spore 

 mass; spores globose or subglobose, minutely and closely papil- 

 lose, involved in a thin, obscure, hyaline, gelatinous coat, black, 

 .000G-.0008 of an inch broad. 



Living stems of K h y n c h o s p o r a m a c r o s t a c h y a 

 Torr. Smithtowu, Suffolk co. August. 



This interesting species is closely related to (1 1 e u c o d e r m a, 

 from which it differs in its longer, thinner and more intensely 

 black spore mass, which occupies the stem instead of the sheaths 

 and flower spikes, and by its more globose spores, which are 

 minutely and closely but not spirally papillose. Two spore masses 

 usually develop on one stem. These are commonly separated by 

 a slight interval. Occasionally the lower is free from the white 

 crust, while the upper still retains it. The thickness of the spore 

 mass, including the inclosed stem, is usually 1-1.5 lines. 



Phyllosticta gxisea n. sp. 



Spots suborbicular, small, 1-1.5 lines broad, arid, gray with a 

 purplish brown margin, brown beneath, occasionally brown 

 above; perithecia epiphyllous, minute, erumpent, black; spores 

 elliptic, hyaline, .00025-.0003 of an inch long, .00016 broad. 



Living leaves of Crataegus praecox. Crown Point. 

 September. 



Gloeosporium phaeosorum Sacc. 



Dead canes of blackberry. Farmer, Seneca co. May. F. C. 

 Stewart. 



Sporotrichum poae n. sp. 



Hyphae slender, .00008 -.00012 of an inch thick, procumbent, 

 branched, slightly interwoven, white; spores colorless, subglobose. 

 .00016 -.00032 of an inch broad. 



Sheaths and culms of Kentucky blue grass, Poa pratensis. 

 Geneva. June. F. C. Stewart. The fungus occurs both without 

 and within the sheaths of culms that have died, but whether their 

 death was due to the attack of the fungus or of insects is nol clear. 



