FLOWERING PLANTS AND FERNS OF INDIANA. 773 



A. brachycarpa (T. and G.) Britton. Purple Rock Cress. 



Probably a migrant, coming into our flora from the north. 

 Reported from Tippecanoe (Barnes); Decatur (Ballard). Oc- 

 curring also in the dune flora of Lake and Porter counties. 



A. glabra (L.) Beruh. Tower Mustard. 



(A. perfoliata Lam.) 

 Reported as occurring along railroad in Putnam County by Dr. 

 MacDougal. Verifying specimens in DePauw herbarium. Prob- 

 ably a migrant. 

 Steuben (Bradner). 



ERYSIMUM L. 



E. asperum DC. Western Wall Flower. Yellow Phlox. 



This showy crucifer is becoming more abundant and of more 

 general distribution. In some localities it is so abundant as to 

 give brilliant mass effects. It frequents gravelly soils or lime- 

 stone cliff. Growing well in very light, thin soils. 



Flowers in May and June. 



Tippecanoe (Cunningham); Montgomery (Coulter); Cass 

 (Hessler); Vigo (Blatchley); Putnam (MacDougal). 



CAPPARIDACE.E. Caper Family. 



CLEOME L. 



0. splnosa L. Spider-flower. 



A southern form which has either escaped from cultivation in 

 the southern part of the State, or found its way into our flora 

 by way of the Wabash River. Sparingly found in waste places. 

 Whether migrant or escape, it maintains itself well. 



Flowering from June until in September. 



Clark (Baird); Gibson and Posey (Schneck). 



POLANISIA Raf. 



P. graveolens Raf. Clammy-weed. 



Rather common in most parts of the State in dry, sandy or 

 gravelly soil. More abundant in shore sand and gravel in places 

 removed from the immediate action of the water. 



Flowers from June until in September. 



Bartholomew (Barnes); Monroe and Vigo (Blatchley); Putnam 

 (MacDougal); Fayette (Hessler); Gibson and Posey (Schneck); 

 Tippecanoe (Cunningham); Kosciusko (Coulter); Daviess (Cle- 

 ments); Montgomery; Marion (Wilson); Jennings (Barnes). 



