Auteupuccinia. 145 
Pucecinia thesii. (Desv.) 
cidiospores—Pseudoperidia scattered and thickly crowded over 
the whole plant, cylindrical, whitish, with torn edges. Spores 
nearly spherical, orange-yellow, smooth, 17-26 X 12-17. 
Uredospores—Sori reddish brown, round, subconfluent. Spores 
round or shortly elliptical, brown, echinulate, 20-284 in 
diameter. 
Teleutospores—Sori compact, round or elongate, brownish black. 
Spores elliptical or ovate, central constriction slight or absent, 
base rounded, apex thickened and darker, smooth, brown, 
30-40 X 14-284. Pedicels brown, persistent, very long. 
Synonyms. 
Puccinia thesit (Desv.). Winter in Rabh., “Krypt. Flor.,” 
vol. 1. p. 202. 
Aecidium thesit, Desv., Jour. de Bot., vol. ii. p. 311. Cooke, 
“ Hdbk.,” p. 537; ‘‘ Micro. Fungi,” 4th edit., p. 195, t. iii. figs. 
50-51. B. and Br., Aun. Nat. Hist, No. 1048. 
Puccinia thesit, Chail. Cooke, “Hdbk.,” p. 495; “ Micro. 
Fungi,” 4th edit., p. 204. 
Lxsicati. 
Berk., 318. Cooke, ii. 311. Vize, “Fungi Brit.,” 12, 81; 
‘Micro. Fungi Brit.,” 214, 457. 
On Thesium humifusum. 
April to October. 
Puccinia calthe. Link. 
eidiospores—Pseudoperidia on roundish spots, or when cauline 
on long swellings, flat, with white torn edges. Spores sub- 
globose, finely verrucose, orange, 20-30 in diameter. 
Uredospores—Sori small, round, chestnut-brown, soon scattered. 
Spores globose or elliptical, echinulate, brown, 22-30 x 
20-2 5p. 
Teleutospores—Sori small, black, pulverulent, but persistent. 
Spores oblong, attenuated towards both extremities, rarely 
rounded, central constriction little or none, apex conical or 
with a paler wart-like papilla, smooth, brown, 30-44 X 13-22¢. 
Pedicels persistent, rather long. 
L 
