246 British Uvredinee and Ustilaginea. 
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-I5y. 
Teleutospores—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, 18-23 long. 
Synonyms. 
Credo padi. Kze. and Schm., Exs., 187. Cooke, “ Hdbk.,” 
Pp. 527. 
Uredo porphyrogentta, Kze. Cooke, “Mico. Fungi,” 4th 
. edit., p. 216. 
Melampsora padi. Cooke, “ Hdbk.,” p. 523. 
LExsiccate, 
Cooke, i. 536. Vize, “ Fungi Brit.,” 146. 
On Prunus padus. 
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, 18-24 x 
12-18. 
Teleutospores—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, 14-18p. 
Synonym. 
Schrot., loc, cit., p. 365. Winter, loc. cit, p. 244. 
Uredo vacciniorum. 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. 
