cruciferjE 55 



Var. fUipes, Gray. Slender spreading pedicels longer than the pods. 



Var. Hartwegianum, (Fourn.) Wats. Short erect pedicels with short 

 pods, but the pods longer than the pedicels. 



10. CONRfNGIA. Hare's-ear Mustard. 



. Pods long, 4-angled; seeds in a single row in each cell; leaves 

 entire, elliptical, clasping. 



1. C. orientalis, (L.) Dumort. 



A glabrous, succulent annual occurring occasionally in cultivated ground, 

 introduced. 



11. BRAYA. 



Flowers wMte or purplish; fruit linear to lanceolate in outline, 

 the septum so constructed that the cells are longer transversely or 

 obliquely than along the axis of the pod; leaves usually tufted at the 

 base. 



1. B. hdmilis (C. A. Mey.) Robinson. 



Pubescent with branched hairs; stems usually several from the same root, 

 low, 2-8 in. high; leaves mostly basal, linear to spatulate, slightly pinnatifid; 

 flowers purplish white. {Sisymbrium humile, C. A. Meyer.) Rooky Mts. 



12. RADiCULA. Water Cress. 



Pods short, varying from slender to globular; seeds in 2 irregular 

 rows. Marsh plants with yellow or whitish flowers and pinnatifid 

 leaves. 



1. R. paliistris, L. Marsh CBE}sa. 



Erect, 1-2 ft. high ; leaves pinnately divided, or the upper cut into narrow 

 pointed lobes; pods short, cylindrical, about as long as the pedicels (nas- 

 turtium paluslre, Gray.) Wet places, Man.-Alta. 



Var. hfspida, Robinson. Hairy, with globular pods, not common. 



13. CAM^LINA. False Flax. 



Pods pear-shaped with a broad partition; seeds numerous; 

 flowers small, yellow. 



1. C. sativa, (L.) Crantz. 



Annual, with large pear-shaped pods, and lanceolate to arrow-shaped 

 leaves. Cultivated fields, introduced. 



