fTeteropuccinia. 179 
Puccinia moliniz. Tul. 
Acidiospores—Pseudoperidia on round discoloured spots, flat, 
with torn, white edges. Spores subglobose, finely verrucose, 
orange-yellow, 17-25 X 15-21. 
Uredospores—Sori chestnut-brown, elliptical or linear, often con- 
fluent. Spores globose or shortly elliptical, very thickly but 
finely echinulate, yellowish brown, 24-28, in diameter. 
Teleutospores—Sori black-brown, elliptical or linear, pulvinate, 
naked, often confluent. Spores elliptical, central constriction, 
slight, base rounded, apex rounded, much thickened, smooth, 
brown, 30-56 X 20-264. Pedicels brownish, permanent, very 
long (100p). 
Synonyms. 
Puccinia molinie. Tul., Mem. Ured. Ann. Sc. Nat., series iv., 
vol. ii. p. 141. Winter in Rabh., “Krypt. Flor.,” vol. i. p. 219. 
Cooke, “ Micro. Fungi,” 4th edit., p. 203. 
Aicidium orchidearum, Field. Cooke, “ Hdbk.,” p. 545; 
“ Micro. Fungi,” 4th edit., p. 200. 
Exsiccati. 
Cooke, i. 106. Vize, “ Micro. Fungi Brit.,” 558 (?). 
Ecidiospores on Orchis latifolia, May and June. 
Uredospores and teleutospores on Molinia caerulea, July to 
October. 
BIoLoGy.—The life-history was worked out by Rostrup, and 
while there is no reason to doubt the accuracy of his conclusions, yet 
I was unable to produce the uredospores on M7. cerulea from the 
zecidiospores on O. latifolva from Irstead. Neither have I been able 
to find P. molinée at Irstead, although the Aicidium is abundant there 
during May and June on O. /atifolia. It is therefore probable that 
two species have their ecidiospores on O. Jadzfolia. 
Puccinia perplexans. Plow. 
Aicidiospores—Pseudoperidia in roundish or elongate clusters on 
thickened yellow, often concave spots, shortly cylindrical, with 
torn white everted edges. Spores subglobose or polygonal, 
finely echinulate, orange-yellow, 24-28 X 20-25). 
