ON COMPOSITA 135 
7. Puccinia Tanaceti DC. 
Puccinia .Tanacett DC. Flor. fr. ii. 222. Cooke, Micr. Fung. p. 207, . 
Plowr. Ured. p. 189 p.p. Sacc. Syll. vii. 657. Sydow, Monogr. i. 
161. Fischer, Ured. Schweiz, p. 185, f. 146. 
P. Discoidearum Link ; Cooke, Handb. p. 499 p.p. 
Uredospores. Sori amphigenous, scattered, minute, not 
confluent, orbicular, pallid-brown ; spores subglobose or broadly 
ellipsoid, echinulate, yellow-brown, 25—82 x 16—25 w, with 
three germ-pores, each covered by a convex colourless cap. 
Teleutospores. Sori mostly hypophyllous, similar, but more 
compact and blackish, 4—%mm, diam.; spores ellipsoid or 
Fig. 87. P. Tanaceti, Teleutospores. 
oblong, more or less rounded at both ends, thickened above (up 
to 7), delicately verruculose (?) especially in the upper part, 
rich-brown, 32—44 x 16—24; pedicels hyaline, thick, per- 
sistent, as much as 120 long. 
On Tanacetum vulgare. Not common. August, September. 
(Fig. 87.) 
