CRUCIFERZ. 23 
Stem-leaves an inch or less long, not clasping: flowers and pods erect..........---+- 11 
cordatus, Nutt. Petals 4-6 lines long, yellowish to purple. 
tortuosus, Kellogg. Petals similar: pods narrower (a line wide). 
Breweri, Gr. Petals 3-5 lines long, purple: pods 14 to 23 in. long. 
Howellii, Watson. Collected in 8.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 veinles white blade. 
perameenus, Greene. calyx magenta: blade cf petals white, purple-veined. 
glandulosus, Hook. Petals red-purple, 6 to 8 lines long. 
S. hispidus, Gr. Hirsute, 2-5 in. high: red-purple petals 4-6 lines long. 
S. flavescens, Hook. Petals yellowish, linear: sepals half as long, acute. 
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8. CHEIRANTHUS, Linnzus. 
1. C. Menziesii, B. & H. Smooth stems scape-like: petals purple. This is Phant 
caulis Menziesii, Greene (the generic name given by Nuttall). 
2. C. asper, C. &S. Stems erect, leafy: petals orange or yellow. 
9. CAULANTHODS, Watson. 
1. C. procerus, Wats. Glabrous, 4 to 7 ft. high, stout, branching: flowers greenish: 
10. THELYPODIUM, Endlicher. 
T. brachycarpum, Torr. Stem 1 to 5 ft. high: petals slender, white, S.N. Mta. 
T. flavescens, Watson. Sepals hairy, yellowish: pod 14 in. long. 
{T. lasiophyllum, Greene. (Sisymbrium reflecum Nutt.) Leaves pinnatifid: stems 
1 to 5 ft. high: pods deflexed or erect. : 
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11. STANLEYA, Nuttali 
1. 8. pinnatifida, Nutt. Stems several, 1 to 8 ft. high: petals narrow, 
12. ERYSIMUM, Linnzus. 
1. E. asperum, DC. Canescent, leafy: petals 8 to 12 lines long. 
13. BRASSICA, Linnzus. 
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. Rough-hairy: pods 1 to I} in. long, 4 beak. 
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14. BARBAREA, Robt. Brown. 
1. B. vulgaris, R. Br. Perennial, 1 to 3 ft. high: racemes dense, yellow. 
Var. arcuata, Koch., has pods and pedicles spreading. Wet ground. 
