''A ERYTHEA. 



slightly constricted, nearly equal, lower cell sometimes wedge- 

 shaped, not thickened at the apex, 25-30x15-18/^. Pedicels 

 hyaline, short, weak and shriveled, inclining to fall away. 

 Differs from Puccinia Biicliloes, Schof., on the same host, in 

 its smaller teleutospores, not thickened at the apex and in its 

 weak, shriveled, hyaline pedicels. 



Puccinia jul)Jita. On culms and sheaths of Hordeum 

 jubatum, Mch. 7, 1895 (No. 1680). 



III. Sori oblong or linear, soon erumpent and naked 

 1-10 mm. long, |-f mm. wide, often confluent, black 

 Teleutospores clavate-oblong, only slightly constricted, 

 27-65x13-20/*, upper cell darker, obtusely rounded at the 

 apex, or even truncate but mostly with an obtusely pointed 

 papilla, direct or oblique, lower cell paler and mostly 

 gradually narrowed into the stout, persistent, colored pedicel 

 40-70/f long. A few uredospores were seen, 18-22xl4-16yu, 

 faintly aculeate, yellowish-brown. 



Differs from P. graminis in its thinner epispore and from 

 P. omnivora, E, & E., in its larger spores. 



Puccinia sparganioidis. On Carex sparganioides^ Kooks 

 Co., Kansas, Aug., 1895 (Bartholomew, No. 1908). 



I[ and III. Amphigenous. Uredosori, very narrow, 

 orange-yellow, about 1 mm. long, at first covered by the 

 epidermis, then naked. Uredospores obovate or pyriform, 

 orange-yellow, aculeate, stipitate, 22-35x14-20/1. Teleutosori 

 small, elliptical, oblong or linear, 1-1 .V (exceptionally 2-2 J) 

 mm. long, soon naked, nearly black. Teleutospores oblong- 

 elliptical or oblong-clavate, very slightly constricted, 35-55 

 xl5-20/-^, rounded, or oftener obtusely pointed above, mostly 

 narrowed below into the stout, persistent, 40-50/f long, 

 subequal, hyaline pedicel. Epispore smooth, distinctly 

 thickened above. 



Differs from P. ludibundn, E. & E. (on the same host) in 

 its smaller sori and broader teleutospores. The uredospores 

 also, in P. ludihnnda are decidedly smaller ( 16-22x12-15 /<), 

 and not as distinctly aculeate. 



