ON COMPOSITE 157 
4icidiospores. Akcidia hypophyllous, evenly spread over the 
whole leaf-surface, flat, with white margin; spores delicately 
verruculose, yellowish, 15—25 x 14—20 mu] 
Uredospores. Sori amphigenous, minute, roundish, scat- 
tered, surrounded by the epidermis, cin- 
namon.; spores globose to ovoid, delicately 
aculeate, brown, 20—24 x 16—20 uy, 
with two or three germ-pores. 
Teleutospores. Sori hypophyllous, 
rarely also epiphyllous, minute, long ( 
covered by the epidermis, blackish-brown; Fig. 108. P. Crepidis. 
spores ellipsoid to ovoid, rounded at both HRN Nona 
ends, not thickened above, scarcely or not at all constricted, 
very delicately punctate (7), chestnut-brown, 20—30 x 17—22y; 
epispore thin ; pedicels hyaline, very slender. 
On Crepis virens. Rare. August. (Fig. 108.) 
This species seems to be very rare. It is recorded for Scotland 
(Moray, Rev. Jas. Keith) in Scot. Nat. 1884, p. 270, and I have a specimen 
showing teleutospores from Ireland (J. Adams), but I have not seen the 
zcidia on British specimens. The punctations were not discernible on 
the teleutospores. 
DISTRIBUTION: Central Europe. 
31. Puccinia major Dietel. 
eidium Compositarum var. Prenanthis Cooke, Handb. p. 542; Micr. 
Fung. p. 198. 
Puccinia Lapsanae Plowr. Ured. p. 149 p.p. 
P. major Dietel, Mitth. Thiir. Bot. Ver. 1894, heft vi. Sacc. Syll. 
xiv. 310. Sydow, Monogr. i. 66. Fischer, Ured. Schweiz, p. 214. 
Spermogones. Generally hypophyllous, on reddish or yellow- 
ish spots. 
4icidiospores.. A&cidia hypophyllous, often surrounding the 
spermogones, on the same thickened spots, in roundish clusters 
or more often forming oblong patches on the nerves and petioles; 
shortly cylindrical, with white torn erect margin; spores ovoid 
or rarely subglobose, delicately verruculose, orange, 20—30 x 
16—24 pu. 
