286 British Uredinece and Ustilagincce. 



surrounded by a single layer of pseudospores, 5-9//. in dia- 

 meter. Mycelium perennial. 



Synonyms. 



Schrot., loc. cit., p. 279. 



Uredo agropyri, Preuss. Sturm's " Deut. Flor.," 3rd edit, 

 vol. vi. p. I, t. i. 



Urocystis parallela, B. and Br. Cooke, " Micro. Fungi," 4th 

 edit., p. 232, in part. 



On Triticujn repens and Avena elatior. 

 June to October. 



Urocystis fischeri. Korn. 



Spore-masses black, in parallel lines on the leaves. Spore-balls 

 with I or 2, rarely 3 teleutospores, 30-45/A in diameter. 

 Teleutospores rather larger as a rule than in U. occulta, generally 

 18-20/X, in diameter. Pseudospores firmly attached, numerous, 

 completely enclosing the teleutospores, dark brown. 



Synonyin. 



Winter, loc. cit., p. 120. 



Urocystis fischeri. Korn., " Hedwigia," 1877, p. 34. 



On Car ex glauca. 



July to September. Mr. Soppitt. 



Biology. — See p. 93. 



Urocystis colclaici. (Schlecht.) 



Spore-masses black, forming in the leaves swollen Hnes and 

 patches, which soon burst and become pulverulent. Spore- 

 balls rounded or irregular, composed of from two to four 

 roundish, polygonal, smooth, brown teleutospores, which are 

 surrounded by a great number of yellowish-brown pseudo- 

 spores. Spore-balls 20-25 x 15-20/x; teleutospores 12 x 15/x 

 in diameter; pseudospores 8-1 i/a in diameter. 



Synonyms. 

 Winter, loc. cif., p. 120. Schrot., loc. cit., p. 280. 



