UREDINACEAE 413 



upper surface of the leaf, rarely on the leaf-sheath, culm, 

 or glumes ; uredospores globose or broadly elliptic, 

 spinulose, yellow, 20-32 /u, or 21-32X20-24 /*. 



in. Sori blackish, small, numerous, often forming rings 

 on the leaf, surrounded by brown paraphyses ; teleutospores 

 shortly stalked, mostly clavate, apex truncate, with a 

 variable number of processes of variable length, 25-57 p. 

 long, basal cell 8-19 //. wide, terminal cell 10-19 //. wide. 



Puccinia dispersa, Eriksson and Henn., Getreidr., p. 210, 

 tab. x., xi., figs. 119-123. 



i. Aecidia forming large orange patches on stem, leaves, 

 and calyx ; aecidiospores spinulose, 20-30 p. diam., or 

 20-30 X 19-22 p.. 



ii. Sori small, i mm. long, and nearly as broad, crowded 

 in groups on the leaves, ochraceous brown; uredospores 

 globose or broadly elliptical, spinulose, yellow, 19-29 p. 

 diam. 



in. Sori blackish, irregularly scattered on the under 

 side, rarely on the upper side of the leaf, each sorus 

 surrounded by curved, brown paraphyses ; teleutospores 

 shortly stalked, mostly elongate club-shaped, unsym- 

 metrical, 40-50 /* broad, terminal cell 14-19 p- broad; 

 promycelium colourless. 



Puccinia glumarum, Eriksson and Henn., Getreidr.^ p. 

 141, tab. v.-ix., figs. 52, and 57-108. 



i. Unknown (wanting?). 



n. Sori minute, yellow-brown, densely crowded on the 

 leaves, more scattered on the inner surface of the glumes ; 

 uredospores globose or shortly elliptical, spinulose, yellow, 

 25-30 p. diam. 



ill. Sori forming crowded, blackish streaks on the leaf- 



