2 66 British UredinecE and Ustilaginece. 



on four occasions in 1886, with M. populina, from P.pyramidalis, but 

 always without success ; and in 1888, from P. alba, with the same 

 resuU. 



^cidium sonchi. Johnst. 



" Minute, scattered, whitish or cream-coloured, prominent. Spores 

 ovate, rather large." 



Synonym. 



Johnst., " Flor. Berw.," vol. ii. p. 205. 



On the under surface of the leaves of Sonchus arvensis^ in 

 autumn. 



" The cover does not split so regularly, and is not so decidedly 

 cupped, as is common in this genus." 



JEcidinm ranuncnlacearum. D. C. 



Pseudoperidia hypophyllous in roundish or elongated clusters of 

 various sizes, cup-shaped, whitish, margin brittle. Spores 

 polygonal, orange-yellow, 17-28 x 14-20/x, 



Synonym. 

 Winter, loc. cit., p. 269. Grev., " Flor. Edin.," p. 446, D. C, 

 " Flore frang.," vol. vi. p, 97. 



On Ranunculus lingua. Duddingston Loch ; Dr. Greville. 



.fficidium dracontii. Schw. 



Pseudoperidia on extensive pallid spots on the leaves, sometimes 

 almost covering them, arranged without order, elongate. 

 Spores orange. 



Synonym. 

 Vadium dracontii. Schw., Trans. Am. Phil. Soc, 1834. 



Cooke, " Hdbk.," p. 538 ; " Micro. Fungi," 4th edit., p. 200. 



On Arum triphylhan. In gardens, Melbury, 1863 \ M. J. B. 

 This can hardly be considered a British species. 



.fficidium strobilinum. (Alb. and Schw.) 



Pseudoperidia numerous, in clusters on the inner surface of the 

 scales of the fallen cones, hemispherical or polygonal from 



