166 British Uvedinee and Ustilaginea. 
LExsiccatt. 
Cooke, i. 16. Vize, “ Micro. Fungi Brit.,” 59, 322. 
4Ecidiospores on Alum ursinum, June and July. 
Teleutospores on Phalaris arundinacea, from August, throughout 
the winter. 
BioLocy. — The life-history of this fungus was worked out by 
Winter. I have been able to repeat Winter’s culture of P. sesst/zs 
by placing the germinating teleutospores which Mr. Soppitt sent me 
in 1888 on Aldium ursinum and Arum maculatum. On the first- 
named plant they produced the acidium, but they had no effect upon 
the Arum. 
Pueccinia phalaridis. Plow. 
cidiospores—Pseudoperidia mostly hypophyllous, in circular 
clusters on yellowish spots, not very prominent, with whitish 
torn edges. Spermogonia appearing first on the upper surface 
of the leaf, centrally then surrounded by the cups. Spores 
roundish, echinulate, orange-yellow, 20-254 in diameter. 
Uredospores—Sori orange, small, elongated, oval, oblong or linear, 
sometimes confluent, at length naked. Spores subglobose or 
oval, yellow, echinulate, 20-25 in diameter. 
Teleutospores—Sori minute, punctate or linear, black, covered by 
the epidermis, persistent. Spores smooth, brown, sessile, 
quadrate or attenuated below, truncate or rounded above, 
apex thickened, sometimes obliquely hooded, slightly con- 
stricted, 4o-50 X 15-18. Pedicels very short. 
Synonyms. 
cidium art, Desm., “ Catal. des Plant. omiss” (1823), p. 26. 
Cooke, “Hdbk.,” p. 545; ‘Micro. Fungi,” 4th edit. p. 199. 
Berk., “‘ Eng. Flor.,” vol. v. p. 369. 
Puccinia phatlaridis. Plow., Jour. Linn. Soc., vol. xxxiv. p. 88. 
Lxsiccate. 
Cooke, 1.5345 il, 84. Vize, “ Micro. Fungi Brit.,” 165, 559. 
fEcidiospores on Arum maculatum, L., May and June. 
Uredospores, teleutospores, on Phalaris arundinacea, L., June 
and July, and from July to May. 
