164 British Fungi. 



subglobose_, often subangular from mutual pressure, 

 epispore thin, clear brown, smooth, 14-20 //, dia- 

 meter. 



Protomyces an, Cooke^ Grev. i. p. 7 ; Plow. Brit. 

 Urecl. and Ustilag. p. 301 ; Sacc. Syll. vii. n. 1133. 



(Type in Herb. Kew.) 



On leaves and petioles of Arum maculatum. Rare. 



The groups of spores are frequently arranged in 

 large discoloured patches spreading in an irregular 

 manner over the greater portion of the leaf. May 

 prove to belong to the genus Entyloma. 



Protomyces 2^f-f''''pureo-tingens,'MsiSS. {n. s^.). (figs. 72, 



73>' 



Forming elongated or broadly effused patches of a 

 dark purple colour on the leaves ; resting-spores 

 solitary^ rarely two^ globose or broadly obovate, 

 often with a short persistent portion of the my- 

 celium, epispore bright brown^ of two distinct layers, 

 minutely warted, 25-28 /i in diameter or 22-28 /jl. 



In the cotyledons and young leaves of the sunJBower 

 and of garden specimens of Smilacina. Rare. 



The blotches in some instances cover nearly the 

 whole of the leaf, and are of a deep purple, or in some 

 instances almost black. 



Distinguished by the warted resting-spores. 



USTILAGINE^. 



The members of the Lstilaginede are minute 

 parasitic fungi, mostly met with in the tissues of 

 flowering plants. Their mycelium is very delicate, 



