Fleteropuccinia. 171 
Synonym. 
Puccinia arenariicola. Plow., Jour. Linn. Soc. Bot., vol. xxiv. 
p- 90. Vize, ‘“ Micro, Fungi Brit.” (1888), 549. 
Ecidiospores on Cenfaurea nigra, L., May and June. 
Uredospores, teleutospores, on Carex arenaria, L., July to May. 
On the seashore at Hemsby, Norfolk. 
BIoLoGy.—The above life-history was worked out by a series of 
cultures (1885), by which it was proved that this species is distinct 
from the other Puccinize on Carices, P. scheleriana and caricis, for 
details of which see Linm. Soc. Four. Bot., vol. xxiv. pp. 90-93. 
This may be the Puccinda tenudstipes, Rost. (Schrot., “ Krypt. Flor. 
von Schlesien,” vol. iii. p. 329) on C. muricata, which has its zcidio- 
spores on Centaurea jacea. 
Puccinia scheleriana. Plow. and Mag. 
icidiospores—Spots yellow, circular, mostly on the radical leaves. 
Pseudoperidia hypophyllous, with reflected torn edges, spermo- 
gonia on the upper surface of the leaves. Spores rounded, 
yellow, finely echinulate, 15-20, in diameter. 
Uredospores—Spots yellow, pallid. Sori elongated or subrotund, sur- 
rounded by the torn epidermis, brown, generally hypophyllous. 
Spores subglobose or ovate, yellowish brown, 25-30 X 14-20. 
Teleutospores—Sori erumpent, oblong or elongate, large, prominent, 
persistent, black, hypophyllous, naked. Spores slightly con- 
stricted, upper cell subglobose, ovate or attenuated upwards, 
apex much thickened, rounded or pointed, lower cell cunei- 
form, often paler than the upper, rich brown, smooth, 60— 
80 X 15-204, Pedicels long, firm. 
Synonyms. 
Puccinia scheleriana. Plow and Mag., Quart. Jour. Micro. 
sSctence, vol. Xxv., new series, p. 170, 
Ecidium jacobee, Grev., “Flor. Edin.,” p. 445. 
icidium compositarum, Mart. Cooke, “ Hdbk.,” p. 542; 
“ Micro, Fungi,” 4th edit., p. 198. 
Lixsiccati. 
Vize, “‘ Micro. Fungi,” 156; ‘Micro. Fungi Brit.,” 434. 
