UREDINACEAE 411 



elliptical or elongate-clavate, base rounded, slightly con- 

 stricted ; apex rounded, 35-52 x 17-26 /x, smooth, chestnut- 

 brown ; pedicel persistent ; forming elongated blackish sori 

 on the^stem, rarely on the leaves. 



Puccinia menthae, Pers.,S}>n.FuKg., p. 227. Spermogonia 

 honey-colour, in little clusters ; aecidia on stem or leaves 

 forming large, inflated, coloured spots, large, plane, spores 

 verruculose, pale yellow, 40 x 17-26 /A; uredospores elliptic 

 or ovoid, aculeate, pale brown, 17-28 X 14-19 /x; teleutospore 

 sori hypophyllous, rarely on the stem, scattered or aggre- 

 gated ; spores elliptical, or shortly cylindrical, ends rounded, 

 scarcely constricted, apex slightly thickened, 26-35 x J 9' 

 23 ft, minutely warted, with a broad, colourless, or pallid 

 apical papilla, dark brown ; pedicel longer than the spore, 

 hyaline, slender. 



Puccinia hieracii, Mart, Fl. Mosq., p. 226. Spermogonia 

 in little groups ; aecidia arranged in rings or without order 

 on purplish spots, margin broad, white, torn; spores 30 x 

 16-23 /A, pale yellow, smooth or minutely verruculose; uredo 

 sori on both surfaces, rounded, scattered, or gregarious ; 

 spores globose or elliptic, 17-32 x 16-26 //, chestnut-brown, 

 aculeate, with two or three germ-pores ; teleutospores in 

 similar sori, crowded, spores elliptic or ovoid, apex rounded, 

 often narrowed below, very finely punctate, 24-45 * 17-28 /* 

 brown ; pedicel slender, longish, hyaline, soon deciduous. 



ft Hetero-puccinia, Schrot. The sporidiola do not 

 infect the same species of host-plant that produces the 

 teleutospores, but a different one which bears the sper- 

 mogonia and aecidia. 



Puccinia pringsheimiana, Kleb., Zeitschr. f. Pflatizenkr., 

 v, p. 79. Spermogonia honey-yellow, in small groups; 



