8 



rod. The. rough, merely sessile, nearly entire stem- 

 leaves differ decidedly from the leaves of our other 

 species of Arahi^ . 

 Variation : 



fhe material arailahle is inadequate. 



3. Arabis druimnondi Gray 

 Scientific name; 



(? Turritis hrachycarpa T. & G. Fl. N. A. 



1: 79. 1838) 

 AraMs confines S. Wats. Proc. Am. 



Acad. 22; 466. 1887. 



(? Arabis hrachycarpa Britton, Mem. 

 Torr. Club. 5} 174. 1894.) 



Arabis Orummondi Gray. 



Presumably Britton includes this form under A. 

 brachycarpa . According to 6ray*s Manual, A. brachyoarp a 

 is similar, but has the basal leaves densely pubescent, 

 etc., and has a more northern, tho largely overlapping, 

 range; it does not seem to occur either here or in Monroe 

 coiinty, according to the available evidence. 

 Common name: 



Purple rock-cress (for A. brachycarpa , according 



