4 BOTANICAL GAZETTE [JULY 



Territory, 299, A. B. Seymour) ; Sept. 1884, III, Decorah, Iowa {E. W. D. Hoi- 

 nvay); Oct. 1885. Ill, Decorah. Iowa (Sydow's Uredineen, 251, E. W. D. 

 Holway)\ July 1886, 11. iii, Emmet co., Iowa {R. /. Cratty)\ Aug, 1886. 

 Ill, Emmet co., Iowa (524, R. I. Cratty)\ Oct, 1888, III, Racine, Wis. (/. /• 

 Davis)\ Aug. 1898, IL iii, Spirit lake, Iowa (/. C. Arthur); April 1899, 

 III, Ames, Iowa (Cryptogams: Plants of Iowa distributed by the Iowa State 

 College, M^H.H. Hiwie)\ July 1899, IL III, Fargo, N. D. {H, L. Bolley); 

 Aug. 1899, ii. Ill, Long Pine, Neb. (/. M, Bates)\ Oct. 1901, III, Fargo, 

 N. D. {H, L. Bolley) ; no date, ii. Ill, Canada (1193, C, G. Prt?tgle). 



On Spartina gracilis Trin. Sept. 1884, III. Medora, N. D. (Journey to 

 Washington Territory, A, B, Seymour)', July 1901, II. Ill, Gleichen, Alberta, 

 Can. {E. IV. D. Holway). 



On Spartina glabra Muhl, No date, IL III. Woods Hole, Mass. (Ellis' 

 N. Amer. Fungi, 239, type collection of Urojji, Spartince FarL, W, G. Far- 

 low)-, Oct. 1889, III, Cambridge, Mass. (Seymour and Earle's Economic 

 Fungi, 68, A. B. Seymour). 



On Spartina patens {IK\i,) yinhX, Oct. 1889, III, Cambridge, Mass. (Sey- 

 mour and Earle's Econ. Fungi, 67, yi. 5. Seymour)] Sept. i899,ii, III, Portland, 

 Me. (/. C, Arthur), 



The species apparently finds its greatest development, judg- 

 ing by the abundance of the teleutosporic stage, in the prairie 

 region of the upper Mississippi valley and northward, although, 

 judging by the fullness and prominence of the sori and plump- 

 ness of the spores, it flourishes best along the northern Atlantic 

 shores. No one has yet been able to suggest the probable 

 aecidial stage, which should be known before pronouncing upon 

 the conditions best suited to the species. Dr. W. G. Farlow,^ in 

 notes on the first collection made at the seashore, mentions his 

 failure to find any aecidium in the vicinity that could reasonably 

 be associated with it, and several times in northern Iowa, where 

 the species is especially abundant, the writer has made careful 

 search for a related aecidium, but wholly in vain. 



The teleutospores of this species, as well as their sori, are 

 quite variable i^fig^ /, ^ to e^. Collections made from salt 

 marshes near the sea, which have heretofore been called Uront. 

 SpartincE Farl., have the sori prominent, and the teleutospores 

 with more rounded apices, and, in general, a deeper-colored, 

 more luxuriant appearance {fig. /, c) . This richer development 



3Proc. Amer, Acad. Sci. 18 : 77. 



