136 PUCCINIA 
Formerly united with Puccinia Absinthii, from which it is distinguished 
by its (on the average) narrower and shorter teleutospores, with longer 
pedicels. I could not see in any case that the teleutospores were verru- 
culose, as they are said to be. 
DistTRIBuTION: North-western and Central Europe. 
8. Puccinia expansa Link. 
Puccinia expansa Link, Sp. Pl. vi. 2, p. 75. Sydow, Monogr, i. 146. 
Fischer, Ured. Schweiz, p. 182, f. 141—2. 
P. Senecionis Cooke, Micr. Fung. p. 207. Plowr. Ured. p. 209, 
(non Lib.). 
Teleutospores. Sori amphigenous, but generally hypophyllous, 
on round yellowish or brownish 
spots, densely crowded and con- 
fluent in roundish clusters 5—8 
mm. broad, blackish-brown; spores 
ovate or broadly ellipsoid, rounded 
at both ends, with a minute paler 
oe ae eae re apical papilla, hardly constricted, 
spores and mesospore, on S. smooth, brown, 30—40 x 19—30x, 
TRUE but sometimes smaller; pedicels 
hyaline, very short; an occasional mesospore is seen. 
On Senecio aquaticus, 8. Jacobaea. Not common. July— 
September. (Fig. 88.) 
The sori of this species are chiefly on the underside of the leaf; they 
are collected into roundish or elongated groups and open by a small round 
pore, after the manner of some ecidia, so that, when the spores have 
fallen out, the group looks like a honeycomb. P. glomerata is said to be 
distinguished by its paler, narrower and longer spores with a smaller 
papilla, and by having the sori on both leaf-surfaces. I think the two 
species are the same so far as our specimens are concerned, but have 
followed Sydows’ Monographia pro tem. Plowright has confused the 
characters of the two, partly because he thought his species on 8. aguaticus 
was P. Senecionis Lib., which is incorrect. The true P. Senecion’s Lib. 
has not been found in Britain. 
DISTRIBUTION: Central Europe, Holland, California. 
9, Puccinia glomerata Grev. 
Puccinia glomerata Grev. in Berk. Eng. Fl. y. 365. Cooke, Handb. 
p. 500; Mier, Fung. p. 206. Plowr. Ured. p. 209. Sydow, 
Monogr. i. 148, t. 8, f. 125. 
