Thclypodlum. CRUCIFKR.E. 1 



* * Caiiline leaves often reduced to linear Ijracts, when well dcvflojicd narrowfil <ir dis- 

 tinctly petiolate at the base. 



-1— Sparingly pilose to hirsute. 

 C. pilosus, Watson. Simple or l)ranihed, biennial, 2 to 4 feet high: stem leafy up to the 

 inlioresceuce : leaves coarsely toothed or piunatifid, 3 to 8 inches in length ; terminal seg- 

 ment not greatly exceeding the others : raceme long, pedicels 2 to 8 lines in length, smooth 

 or hispid, spreading : tiowers rather sni;Ul, greenish, or purple, ascending: caly.x narrow; 

 sepals linear-oblong, 3 to 4 lines in length, usually somewhat iiis|)id, little exceeded by the 

 petals: siliijues long and very narrow, two thirds line in diameter, tiexuous, widely spread- 

 ing or recurved. — Bot. King Exp. 27 ; Brew. & Wats. 1. c. — Sandy soil, in sage brush, &c., 

 N. W. Nevada, Watson, Shocklcy, Crystal Spring, Eastern California, Corille & Fuustun, to 

 Oregon, Howell, Ciislck ; fl. May and June. Immature and therefore doubtful specimens 

 collected at Silver City, Brit. Columbia, along the Canad. I'acif. Kailway, Macoun, are prob- 

 ably introduced from farther south. 



■i— -I— Stem glabrous. 

 -H- Flowers ascending or erect. 

 C. Crassicaiilis, Watsox. Stem simple, erect, 1 to 3 feet high, very thick, fistulous : leaves 

 chieriy clustered at or near the base, oblanceolate in outline, lyrately toothed or j)innatifid, 



2 to 5 inches long; cauliue leaves few, much reduced, linear or somewhat hastate: flowers 

 subsessile, large : sepals oblong-lanceolate, 5 to 6 lines long, more or less pubescent, usually 

 densely so, often velvety : pods ascending, slender, terete, 4 to 5 inches long. — Bot. King 

 Exp. 27, & Bibl. Index, 55 ; Jones, Zoe, iii. 283. Slrcptoittluis crassicanlis, Torr. in Stansbury, 

 Eep. 383, t. 1, & Flora, 1853, 702 ; Durand, Fl. Utah, 159; Gray, I'roc. Am. Acad. vi. 186.— 

 Kocky ground aud slopes of footln'lls, Utnh to Central and S. California, north to Idaho, 

 ,yiss Mulford; fl. May to July. A form willi slender stem has la-on cnUccted in Bear 

 Valley, S. Calif., Parish Bros. ' 



Var. glaber, M. E. Jones. Sepals as well as other ])arts (luitc glalirons. — Z<ie, iv. 

 266. — S. Utali and E. Nevada. 



C procerus, Watson. An erect stout sparingly branched l)iennial : basal and lower cau- 

 line leaves runcinate-pinnatifid, 4 to 8 inches long, narrowed at the base to a distinct petiole ; 

 uppermost lanceolate, attenuate, subentire : flowers greenish white : pedicels smooth, ascend- 

 ing, 3 lines long : sepals smooth, oblong, 4 lines in length, little exceeded by the petals. — 

 Bot. King Exp. 27 ; Brew. & Wats. Bot. Calif, i. 36. Streptantlius flavescens, Gray, Proc. 

 Am. Acad. vi. 186, in part. S. procerus. Brew, in Gray, 1. c. 519; Bolander, Cat. 5; Wats. 

 1. c. 19. T helij podium procerum, Greene, Fl. Francis. 263. — Central California. 



C. glauCUS, Watson. Branching, smooth and glaucous : leaves succulent, ovate or lanceo- 

 late, obtuse or acute, subentire ; the cauline well developed, narrowed at the base or 

 abruptly contracted and somewhat decurrent upon the petioles : sepals smooth, tinged with 

 liurple, oblong, 4 lines in length, a line in lireadth : petals ex.«erted and recurved : pedicels 



3 to 5 lines in length, glabrous : fruit slen<ler, terete, 3 to 4 inches long, falcate or flexuous, 

 widely spreading. — Proc. Am. Acad. xvii. 364. — In clefts of rock, &c., Nevada, Candelaria, 

 Esmeralda Co., at 6,500 feet alt., S/iocHei/ ; Belleville, Jones ; fl. May and June. 



++ ++ Flowers horizontal or somewhat deflexed. 

 C. hastatus, Watson. Perennial, erect, 2 to 4 feet high, simjde or sparingly Itraicbed : 

 cauline leaves well developed, variable, usually with a large deltoid to lanceolate acutish or 

 o])tuse subentire or hastately lobed segment and often, but not .always, several nnich smaller 

 segments arranged irregularly u])on the long slender petioles : racemes dense and spike-like: 

 flowers small for the genus, spreading and pendulous almost from the first: sejtals narrow, 

 glabrous, greeiiish white : capsules sleiuler, spreading or ascending, somewhat knotted and 

 often falcate or flexuous. — Bot. King Exp. 28, t. 3; Brew. & Wats. Bot. Calif, i. 30 — 

 Shaded slopes of the AVasatch and I'inta Mountains, Ctah, JVatson, Hooker & Gnu/, to the 

 Blue Muuntains of Oregon, Cusick ; fl. June. 



48. THELYPODIUM, Endl. (©^Av?, female, and tto.'c, foot, stalk, 

 referring to tlie more or less distinetl}' stiped ovar}'.) — A considerable jr^nus of 

 the West and Soiilliwcst, most of the species biennials, often sncenhnt. with 



