58 CEUCIFEE^. thelypodidm. 



Cotyledons more or less oblique. 



T. Howellii Watson Proc. Am. Aoad. xxi, 445. Glabrous and glaur 

 cous but the base of the stem and the radical leaves villous with spreading 

 hairs : stems erect, slender, sparingly branched or simple, 6-18 inches 

 high from an annual or biennial root : radical leaves numerous in a rosu- 

 late tuft, oblanceolate, obtusish, coarsely toothed or pinnatifld, narrowed 

 at the base, an inch or two long; cauline leaves linear-lanceolate attenu- 

 ate, sagittate, aurioulate erect and usually appressed, 6-12 lines long: 

 racemes rather short and loose, the flowers scattered and ascending on 

 short pedicels ; sepals oblong 2-3 lines long the lower pair distinctly sac- 

 cate at base : petals narrow, crisp twice as long as the sepals : pods ascend- 

 ing 12-15 lines long, slender beaked. In grassy meadows Harney valley 

 Oregon and at Camp Polk on the eastern base of the Cascade Mountains. 



T. eucosmnm Eobinson in Gray Syn. Fl. i, 175. Glabrous, stems as- 

 cending from an annual or biennial root 6-18 inches high, freely branch- 

 ing : lower leaves ovate, long petioled ; cauline leaves oblong or lanceolate' 

 entire spreading, 1-3 inches long : racemes very-many-flowered ; flowers ' 

 deep purple usually horizontal on spreading pedicels 2-3 lines long: petals 

 spatulate 4 lines long : pods arcuate ascending 1-2 inches long : mature fruit 

 not known. On moist slopes of the Blue Mountains at Baker City, iJ; D. 

 Nevius, and near Canyon City Oregon, Howell. 



T. ftexuosnm Eobinson 1. c. Stems slender weak and subdecumbent, 

 flexuouB, nfearly naked above : radical leaves numerous lanceolate, includ- 

 ing the slender petiole 3-6 inches long : cauline leaves distant, all or at 

 least the ujiper much reduced, linear-oblong or lance-linear with narrow 

 acutish auricles : racemes rather loose and somewhat few-flowered ; flow- 

 ers usually horizontal on short pedicels ; petals spatulate, 3-4 lines long, 

 usually pale : pods arcuate ascending 1-3 inches long. In alkaline soil 

 among "Sage brush," etc. Harney valley southeastern Oregon, Stwell, 

 to Nevada and California. 



T. STuttallii Watson Bot. King, 26. Glabrous and glaucous: stems 

 stout, branching above, 3-5 feet high : leaves all entire the radical ones 

 ovate, petioled, often 6-8 inches long and half as broad; cauline leaves 

 lanceolate, sagittate-clasping : flowers rather large nearly erect, on pedi- 

 cels 3-6 lines long : petals ovate-oblong, tbe claw exceeding the sepals, 

 purple 6-8 lines long : pods 2-3 inches long, nearly erect upon the spread- 

 ing pedicels, subterete, more or less torulose acuminate with the rather 

 long style. Eastern Washington and Oregon to Idaho, Utah, Nevada and" 

 Arizona. 



T. integrifoUum Endl. Gen. 876. Glabrous: stout, 2-6 feet high, 

 branching at the summit : radical leaves large oblong-elliptical, I'dng-pet- 

 ioled ; cauline leaves mostly narrowly lanceolate 1-2 inches long sessile not 

 auriculate, ascending, the uppermost linear: flowers crowded and almost 

 corymbose at the end of the branches : sepals 1^-2J^ lines long : petals 

 spatulate-obovate, pale rose-color: fruiting racemes short and crowded: 

 pods 6-15 lines long, somewhat torulose accuminate with the slender 

 style, curved upwards on divaricate, commonly thickened and rigid pedi- 

 cels 1-5 lines long. On plains, Washington to southern California, Colo- 

 rado and Nebraska. 



T. laciniatum Endl. 1. c. Glabrous: stems stout erect 1-6 feet high,, 

 simple or branched; leaves all petioled 1-6 inches or more long, lanceolate 

 to broadly oblong, laciniately pinnatifld or soarsely and equally sinuate-- 

 toothed: racenies long and crowded: sepsJs narrowly lanceolate, acumi- 

 nate 3-4hnes long, about half as long as fUe linear-spatulate petals: an- 

 thers long-exserted : pods 2-3 inches long pointed with the slender style 

 distinctly stipitate, erect on short stout divaricately sprea,ding pedicels 

 Among rocks, etc., at the base of cliffs alojig the Columbia, river in Oregon 

 and Washington to California and Nevada. 



