AND SOME OF ITS ALLIES 525 



Specimens examined : 



Maine : Aroostook Co. (Fernald, no. 109, K. Furbish), Ken- 

 nebec Co. (Fernald, no. 2747), Somerset Co. and Orono(Fernald). 



Vermont : (Eggleston & Churchill, no. 404), Willoughby (G. 

 G. Kennedy). 



New York : Ithaca (Dudley and others) ; Truxton (K. M. 



Wie 



M 



Co. (O. A. Farwell, no. 468b). 



F. Wheeler), Keweenaw 



Wisconsin : (J 

 Missouri : Di> 



Well 



(J 



Nebraska: Hooker Co. (Rydberg, no. 1374), Thomas Co. 

 (Rydberg & Wright, nos. 1845 an ^ 1 4%7)- 



Wyoming : Lander (A. Nelson, no. 699). 



Idaho : Boise (A. I. Mulford). 



Colorado : Mancos (Baker, Earle & Tracy, no. 424). 



Arizona : Willow Spring (F. Palmer, no. 550). 



The cartilaginous brown auricles, stiff stem and small contracted 

 inflorescence with spreading calyx distinguishes this species from 

 all others of the group. In the vicinity of Ithaca, N. Y., it is 

 quite common, and may be found either in damp open meadows 

 along water courses or preferably in marly soil in which latter sit- 

 uation it reaches its greatest perfection. In the Cayuga Flora 

 Professor Dudley refers to this species as an unnamed variety of 

 J. tenuis with tall stems and crowded glomerate heads occurring on 

 the moist meadows of Marl Creek. 



/uncus Dudleyi is extremely variable in size, although the floral 

 characters are constant. The largest specimens are coarse, tall 

 and robust with looser sheaths, thinner auricles and more open 

 inflorescence ; but all gradations may be found down to the very 

 slender low forms with close sheaths and capitate flowers. These 

 extremes may all be found about Ithaca, N. Y. 



j 



1817 



Sparingly tufted, very stout, especially at the base (7-9 dm 

 high), strict, dark green : culms terete or flattish, shallow ly striate : 



