I902J THE UREDINE^ IN AMERICA 19 



rather thin, brownish-yellow, sparingly echinulate with stout 

 points, pores indistinct, apparently four and equatorial. III. 

 Teleutosori pulvinate, solid, blackish brown ; teleutospores dark 

 brown, linear-oblong, 20-24 by 48-72 /x, not constricted at the 

 septum, side walls moderately thick, apex somewhat thickened, 

 obtuse or rounded, pedicel slender, firm, slightly tinted or color- 

 less, as long as the spore, more or less. 



In the southern states from North Carolina to Alabama, not 



/ 



common. On leaves of Arundinaria. Specimens have been 

 examined as follows: 



On Arundinaria tecta (Walt.) Muhl. No date, III, Salem, N. C. (type, 

 Z. Von Schweinitz) ; Feb. i8g6, III, Auburn, Ala. {F, S. Earle and L.M. 

 Underzuood)\ Sept., 1897, III, Tuskegee, Ala. (95, C. IV, Carver)\ Sept. 



H, 



H, 



This is not an abundant species. Although collected by L. 

 von Schweinitz in North Carolina about 1820, and again later in 

 Philadelphia, Penn.," on plants in the Bartram Gardens, brought 

 from a distance, yet it has been rarely collected since. It 

 appears to occur over a wide area, but at all times very spar- 

 ingly. The uredo stage, being light brown in color, is especially 

 difficult to find. I am indebted to Mr, P. H. Rolfs and Mr. 

 George W. Carver for material for study, which they obtained 

 for me after much search. 



The type specimen in the herbarium of the Philadelphia 

 Academy of Sciences consists of a single fragment of leaf about 

 8 by so™'", bearing only three sort. Both host and fungus fall 

 somewhat short of perfect development. 



A single glance at 



Phragmitis) 



only through ignorance of its real characteristics. The usually 

 elongated, non-constricted, and often curved teleutospores are 



CA 



B 



This completes the list of species known to occur on Spartina, 

 Phragmites, and Arundinaria in North America. There are only 



"Trans. Amer. Phil, Soc. 4: 295. 



