1902] THE UREDINE^ IN AMERICA II 



determined as Spartina cyniostcroidcs, and the correction published 

 by Bartholomew^ in his list of Kansas Uredineae. All the syn- 

 onyms of the species are founded upon these three types. 



The oldest specific name, Fraxiniy cannot be transferred to 

 the genus Puccinia, as there is already a P. Fraxini Kom. from 



the orient,' and the next oldest name, that of Link, is therefore 

 taken. 



3. Puccinia Seymouriana, sp. nov. 



Exsicc : Ellis & Everhart, N. Am. Fungi, 1474 "^ 



Seymour & Earle, Econ. Fungi, 69^^^ 



O. I. Spermogonia and aecidia unknown. 



II. III. Sori epiphyllous, intercostal, prominent, oblong, rup- 

 tured epidermis inconspicuous. II. Uredospores globose, or 

 broadly elliptical, 26-39 t>y 30-45/^, contents orange when 

 fresh, becoming faintly yellow when old, at first globose, after- 

 ward angular and shrunken, wall colorless, thickened above, 

 sometimes to more than half the diameter of the spore, promi- 

 nently tuberculate, pores obscure. IIL Teleutosori pulvinate, 

 chocolate brown ; teleutospores elliptical or oblong, 20-26 by 

 37-52 /i, slightly constricted at the septum, apex obtuse, thick- 

 ened; pedicel firm, slender, tinted, once to thrice the length of 



the s 



pore. 



From Massachusetts to Illinois and Iowa, and northward. 

 On blades of Sparti?ia cyiiosuroides; uredospores in July, soon 

 followed by the teleutospores which persist through the winter 

 and germinate the next spring. Specimens have been examined 

 as follows: 



On Spartina cynosuroides (L.) Willd. July 1881, III, Hudson, 111. (2348, 

 A. B. Seymour); Aug, 1881, III, English prairie, III. (1346, A. B. Seymoiir)\ 

 Oct. 1S81, III, Canton. 111. (1771, ^. ^. 5o'^^/^«^); Oct, 1 881. May and Sept. 

 1882, III, Normal, 111. (1829, 4794, 6262, A. B, Seymour)\ June 1882, III, 

 Normal, 111. (5272, C, A. Hart)\ Jan. and March 1883, III, Normal, 111. 

 {C.A.Hari)\ April 1883,111, Madison, Wis. {Wnu Trelease)\ Oct. 1883, 

 III, Chicago, III. (/. C Arthur)', Nov. 1883, III, Normal, 111. (Ellis & Ever- 



*Trans. Kan. Acad. Sci. 16:178. 



*See Jaczevvski, Komarov, Tranzschel, Fungi Rossiae Exsiccati, no. 225, where 

 full description is given. 



