246 British UredinecE and UstilagineiE. 



Melampsora padi. (Kze. and Schm.) 



Uredospores — Sori hypophyllous, small, pustular, whitish. Pseudo- 

 peridia on violet or brownish polygonal spots, hemispherical, 

 persistent, opening with an apical perforation. Spores elongate 

 or subglobose, often angular from mutual pressure, echinulate, 

 white or yellowish, 15-20 x io-15/x. 



Telentospores — Sori epiphyllous, small, round, or angular, often 

 forming black-brown crusts. Spores divided longitudinally, 

 into cylindrico-prismatic cells, from two to four in number, 

 intracellular, brown, 1 8-2 3/x long. 



Synonyms. 

 Uredo padi. Kze. and Schm., Exs., 187. Cooke, " Hdbk.," 



P- 527- 



Uredo porphyrogenita, Kze. Cooke, " Mico. Fungi," 4th 

 edit, p. 216. 



Melampsora padi. Cooke, " Hdbk.," p. 523. 



Exsiccati. 

 Cooke, i. 536. Vize, "Fungi Brit.," 146. 



On Primus padiis. 

 July to November, 



Melampsora vacciniorum. (Link.) 



Uredospores — Sori yellow, small, pustular, scattered or crowded. 

 Pseudoperidia hemispherical, perforate above. Spores sub- 

 globose or ovate, fine, echinulate, orange-yellow, iS-24 x 

 12-18/X. 



Telentospores — Sori forming very small, pale brown, irregular 

 crusts, hypophyllous, on the fallen leaves. Spores formed in 

 the epidermal cells (intracellular), which they generally fill, 

 septate longitudinally, brown, 14-18/*. 



Synonym. 



Schrot., loc. cif., p. 365. Winter, ioc. cif', p. 244. 



Uredo vaccinio7'iim. Link., " Sp. Plant," vol. ii. p. 15. Berk., 

 " Eng. Flor.," vol. v. p. 378. Cooke, " Hdbk.," p. 527 ; " Micro. 

 Fungi," 4th edit, p. 216. Johnst., "Flor. Berw.," vol. ii, p. 199. 



