216 British Uvredinee and Ustilaginee. 
Spores ovate or fusiform, apex generally rounded and thick- 
ened, often subtruncate, pale brown, smooth, 45-55 X 18-20. 
Pedicels not very long. 
Synonym. 
Puccinia millefolit. ¥ckl., “Symb. Myc.,” p. 55. Cooke, 
“Micro. Fungi,” 4th edit., p. 207. 
Lxsiccatt. 
Cooke, ii. 633. Vize, ‘‘ Fungi Brit.,” 33. 
On Achillea millefolium. 
August to October. 
BIoLoGy.—This species is, by both Winter and Schréter, united 
with P, asterés,; but I found that, by placing the promycelial spores of 
P. millefolit on Aster tripolium, no effect was produced. Neither did 
a plant of Achillea, which was richly covered by the teleutospores and 
planted close to two plants of Aster, so that the diseased foliage of the 
former touched the latter, cause them to become diseased, although 
they grew together for a period of two months. 
Puecinia cardui (nov. sp.). 
Teleutospores—Sori small, circinating, crowded and confluent in 
large clusters, 3 or 4 mm. across, hypophyllous, long covered by 
the epidermis ; spots pale on the opposite surface of the leaf. 
Spores fusiform, subcylindrical, or clavate, markedly constricted, 
smooth, pale brown, base attenuated, apex generally thickened 
and rounded, 45-50 X 16-18. Pedicels pale brown, per- 
sistent, as much as 50, long. 
Synonyms. 
Puccinia syngenesiarum, Link. Johnst., “ Flor. Berw.,” vol. ii. 
p- 97- Berk., ‘‘ Eng. Flor.,” vol. v. p. 365. Cooke, ‘“* Hdbk.,” 
p- 499; “ Micro. Fungi,” 4th edit., p. 206, t. iv. figs. 63, 64. 
Puccinia cirsit, Fckl. Exs. No. 340 (?). 
On Carduus lanceolatus, crispus. 
August to October. 
BIOLOGY.—This species has the appearance of a Leptopuccinia, 
but it may belong to the previous group, It is clearly not the plant 
