CHUCIFFR.1:. 23 



stem-leaves an inch or leas long, not clasping: flowers and pods erect 11 



1. S. cordatus, Nutt. Petals 4-G lines long, yellowish to purple. 



tortuosus, Kellogg. Petals similar: pods narrower (a line wide). 



Breweri, Gr. Petals 3-5 lines long, purple: pods li toJ2i in. long. 



Howellii, Watson. Collected in S.W. Or. by Thos. Howell in 1884. 



diversifolius, Watson. Pods strongly reflexed, slender. Cosumnes River. 



polygaloides, Gr. Sepals yellow: petals purple scarcely exserted. 



niger, Greene. Petals with purple claw and minute veinlea white blade. 



peramsenus, Greene, calyx magenta: blade cf petals white, purple- veined. 



glandiilosus, Hook. Petals red-purple, 6 to 8 lines long, 

 hispidus, Gr. Hirsute, 2-5 in. high: red-purple petals 4-6 lines long, 

 flavescena, Hook. Petals yellowish, linear: sepals half as long, acute. 



8. CHEIRANTHUS, Linnsus. 

 Meaziesii, B. & H. Smooth stems scape-like: petals purple. This is Phani' 

 caulia Menziesii, Greene (the generic name given by Nuttall). 

 asper, 0. & S. Stems erect, leafy: petalsiorange or yellow. 



9. CAULANTHUS, Watson. 

 1. C. procerus, Wats. Glabrous, 4 to 7 ft. high, stout, branching; flowers greenish' 



10. THELYPODIUM, EndUcher. 



1. T. brachyoarpum, Torr. Stem 1 to 5 ft. high: petals slender, white. S. N. Mt». 



2. T. flavescens, Watson Sepals hairy, yellowish: pod 1 J in. long. . 



3. T. lasiophyUum, Greene. {Sisymbrium rejlexum Nutt.) Leaves pinnatifid: stems 

 1 to 5 ft. high: pods deflexed or erect. 



11. STANLEYA, KutialL 

 I. S. pinnatiflda, Nutt. Stems several, 1 to 8 ft. high: petals narrow. 



12. EBYSIMTTM, Linnseus. 

 1. E. asperum, DC. Canescent, leafy: petals 8 to 12 lines long. 



13. BBASSICA, Linnxus. 

 nigra, Boiss. Leaves petioled: pods 4-angled, 6 to 9 lines long. 

 ' campestris, L. Upper leaves clasping: pods 2 or 3 in. long; beak long. 

 Sinapistrum, Boiss. Eough-hairy: pods 1 to IJ in. long, J beak. 



14. BAB.BAKEA, Robt. Brown. 

 1. B. vulgaris, R. Br. Perennial, 1 to .3 ft. high: racemes dense, yellow. 

 Var. arcuata, Koch., has pods and pedicles sijruailiiig. Wet ground. 



