1 90 British Fungi, 



Urocystis primulicola, Magnus, Ueber drei neue 

 Pllze Schles. in Sitzungsber. d. Botan. Vereins. des 

 Prov. Brandenburg, B. xx. 1871 ; Sacc. Syll. vii. ii. 

 n. 1899; Plow. Brit. Ured. and Ustilag. p. 289. 



On Primula far inos a SiTid P. vulgaris. Rare. 



Entyloma, De Bary. 



Mycelium intercellular, not becoming gelatinized j 

 resting-spores solitary, terminal or intercalary, often 

 crowded together in sori, but not forming spore- 

 clusters, epispore tbick, often stratose, hyaline or 

 coloured, smooth or ornamented ; promycelium fili- 

 form, primary sporidia acrogenous, elongated, often 

 conjugating in pairs ; in some species gonidia are 

 produced acrogenously on slender gonidiopbores which 

 form indeterminate white tufts on the surface of the 

 host. 



Entyloma, De Bary, Bot. Ztg. 1874, p. 101; Sacc. 

 Syll. vii. ii. p. 487 ; Plow. Brit. Ured. and Ustilag. 

 p. 289. 



Closely allied to Melanotsenium ; the latter differs in 

 the black sori. 



A. Gonidia formed on the living liost-'plant. 



Entyloma Fergussoni, Plow. 



Spots orbicular, 1 — 3 mm. diameter, greyish on the 

 under surface of the leaf owing to the formation of 

 gonidia ; resting-spores globose or angularly globose 

 from mutual pressure, rarely broadly elliptical, epi- 

 spore rather thin, smooth, pale brown, 10-15 /a 



