l8 9 1 -] Notes on Uredinetz. 227 



and involucral leaves, oblong, long covered with thick epiderm- 

 is; uredospores elliptical or nearly round to obovate, epispore 

 thin, echinulate, 19-22x20-30^; teleutospores brown above 

 and pale below, elongated oblong, little if any constricted, 



vertex strongly thickened, obtusely and obliquely pointed, 

 epispore thin, smooth, 17-20X 33 X 63^; pedicel short, one- 

 third the length of the spore or less, slightly colored. 



On Cypcrus Sckweinitzii : Iowa, E. W. D. Holway, J. C. 

 Arthur; Nebraska, H. J. Webber, in Flora of Nebraska, No. 

 369; Wisconsin, W. Trelease and L. H. Pammel, in Paras. 

 Fungi of Wis., No. 202. On Cypcrus strigosus: Michigan, 

 J. C. Arthur. 



This species is related to P. obtecta, and in the form of its 

 teleutospores also resembles P. Caricis, to which it has been 

 referred. 



Uromyces Gentian* n. sp. — Sori scattered over the green 

 parts of the host, oblong or round, soon naked, brownish- 

 yellow color; uredospores globose or ovoid, epispore thin, 

 echinulate, 18-20x19-25^; teleutospores globose or ovoid, 

 yellowish-brown, vertex rounded, slightly thickened, epispore 

 thin, obscurely papillate, 15-19x19-23/*, pedicel fragile, very 

 short. 



On Gentiana quinque folia var. occidentalis, Decorah, Iowa, 

 E. W. D. Holway. 



The teleutospores are almost the same size and color as the 

 uredospores, and quite different from the one-celled teleuto- 

 spores of Puccinia Gentiana. That these are genuine teleut- 

 ospores is certain from the presence of a terminal pore, which 

 shows very distinctly upon using sulphuric acid. Their clo-e 

 resemblance to the uredospore has caused them to be over- 

 looked heretofore. The uredospores are sometimes thickened 

 like the teleutospores, but the spot is always lateral, and not 

 terminal, and by using acid the two or three lateral pores can 

 be made visible. 



Purdue University, Lafayette, Ind. 



