278 PUCCINIA 
Brunella (= Heidiuin Prunellae Wint.). This was found by Fischer in 
Switzerland, and the connection of the two hosts was proved by Cruchet. 
To this, doubtless, belongs the ecidium found on Prunella vulgaris by 
Dr Keith at Forres (Plowr. Ured. p. 264), and Qr Buchanan White's 
Puccinia on Molinia may belong there likewise. The apex of the teleuto- 
spores in his specimens is, however, much less strongly thickened than in 
the figures given by Fischer. 
DIsTRIBUTION: Throughout Europe, except the south. 
131. Puccinia Poarum Niels. 
Aeidium Tussilaginis Gmel. in Linn. Syst. Nat. ii. 1473. 
AG, Compositarum var. Tussilaginis Cooke, Handb. p. 542; Mier. 
Fung. p. 198. 
Puccinia Poarum Niels. in Botan. Tidsskr. ii. 26. Phill. et Plow. 
Grevillea, xiii. 54, Plowr. Ured. p. 168; Grevillea, xi. 52. Sace. 
Syll. vii. 625. Sydow, Monogr. i. 795. Fischer, Ured. Schweiz, 
pp. 361, 556, f. 268. McAlpine, Rusts of Australia, p. 128, f. 22. 
Spermogones. Epiphyllous, pale-yellow, often very numer- 
ous. 
Micidiospores. Aicidia hypophyllous, usually in dense 
clusters on circular yellowish or reddish thickened spots 
1—2 om. diam., seldom scattered, cup-shaped, with a dentate 
white revolute margin; spores verruculose, orange, 18—25 x 
16—20 p. 
Uredospores. Sori on the leaves, sometimes on the culms, 
minute, roundish or elliptic, soon naked, yellow ; spores globose 
to ellipsoid, densely and minutely verruculose, yellow, 17—28 x 
17—25 y, with about five scarcely perceptible scattered germ- 
pores, and intermixed with numerous, hyaline, capitate para- 
physes. 
Teleutospores. Sori similar, oblong or linear, more or. less 
in short rows, long covered by the epidermis, surrounded by 
a small pale area, black; spores oblong-clavate, cylindrical, or 
obconical, variable, rounded, truncate, or rarely conically at- 
tenuated above where they are slightly thickened (4—8 p), 
hardly or not at all constricted. more or less tapering below, 
smooth, chestnut-brown, becoming gradually paler downwards 
