CKUCIFEK^. (^MUSTARD FAMILY.) 21 



6. CAULANTHUS, Watson. 



Sepals large, nearly equally saccate at base. Anthers linear, curved — 

 Ours are stout perennials, witli lyrate and entire leaves and greenislivell<nv 

 flowers. 



1. C. hastatUS, Watson, (ilal)rous, simple or somewhat branched : 

 leaves petioled, very variahlc; radical ones lyrate or entire, the terminal 

 leaflet ovate, hastate, or truncate at Iiase, the lateral leaflets very small ; i-auline 

 ovate-oblong, entire, hastate, rounded or cuneate at hose : flowers in a loo.se 

 virgate raceme, reflexed : .sepals narrow, distant: petals ('.sometimes nearly 

 M-auting) efpialling {lie sepals, toothed on the sides : pods spreading. — Hot. 

 King's E\\). 28, with plate. On shaded slopes in tlic Wasatch and Uinta 

 Mountains. 



7. THELYPODIUM, Endl. 



Sepals narrow, equal at base. Anthers linear, curved. — Mostly stout and 

 coarse biennials. 



* Leaves entire. 



1. T. integrifolium, Endl. Stem 3 to 5 feet high, attenuated upward 

 and sending out jiionrrous branches toward the summit: radical /eaves petiottd, 

 ohlong-e/lipfical ; cauline lanceolate, sessile, uppermost nearly linear: flowers 

 crowded, pale rose-color: pedicels almost horizontal : jxxl short, al)ruptly 

 pointed, ort a short stipe. — From New Mexico to the I'jjper Missouri and 

 Oregon ; also in California. 



2. T. linearifolium, Watson. Stem 1 foot or more high, often branclied 

 from the l)ase, ererf, paniculate at the top: leai-es linear, or the lower lance- 

 olate, sessile: sepals turning purplish: petals rose-purple: pods erect, on 

 spreading pedicels, very slender, teretish, a/)/cM/afe with a very short .<tti/le. — 

 Bot. King's Exp. 2.5. Streptanthus linear if olius. Gray. Wyoming, Colorado, 

 and southward. 



3. T. sagittatum, Endl. Stems weak, rarchf erect, 12 ^o 18 inches high: 

 radical leaves long-pet ioled, lanceolate; cauline sagittate and clasping: sepals 

 pur])lish : petals pale pink : pods .somewhat torulose, acuminate with thr 

 ratlier long stgle, spreading. — W. Wyoming, S. W.Montana, to Utah and 

 Nevada. 



4. T. Nuttallii, Watson. Resembling the last but stouter and more nrrf, 

 3 to f) f(et lii(/h : radical leaves ovale: septds and petals hriijht purpU, rtirc\Y 

 Avhitisli — Bot. King's Exp. 20. Streptanthus i;agittatus, Nutt. Wyoming 

 and Montana to Oregon and California. 



* * At least the radical leaves toothed. 



5. T. Wrightii, Oray. Stem 2 to 3 feet high: leaves lanceolate, repand- 

 dentate or denticulate, all narrowed into a short petiole: flowering racemes 

 short and den.se ; peilicels divaricate: petals .scarcely exceeiling the sepals 

 pods widely spreading, on a very short stipe. — Colorado and soulhwanl. 



