168 CRUCIFER^. Streptanthus. 



§ 1. EusTREPTANTHUS, Gray, 11. cc. Flowers large: petals with a broad 

 blade: filaments distinct : pods erect or ascending : glabrous annuals : species of 



the interior. 



* Pedicels conspicuously bracteate : pods narrow. 



S. bracteatus, Gray. Stem I to 3 feet high, branching above : lower leaves petiolate, 

 entire or repand-toothed to lyrately pinnatifid, oblong to ovate-hastate ; the upper sessile, 

 oblong to ovate, cordately auriculate ; floral bracts broadly cordate, the uppermost much 

 reduced : flowers rose-colored on short pedicels : pods spreading, 4 to 6 inches long by 1 to 2 

 lines broad, attenuate to a short style and broad entire stigma ; seeds oblong, broadly winged. 



— Gen. 111. i. 146, t. 60, excl. f. 4-8, & PI. Lindh. pt. 2, 143. — Southwestern Texas, Lind- 

 heimer, Wright, Hall, Reverchon. 



* ^ Floral bracts minute or none. 

 S. maculatus, Ndtt. Glaucous, 1 to 2 feet high : cauline leaves sessile, entire, oblong to 

 elliptical or broadly ovate, deeply cordate-amplexicaul ; floral bracts none : flowers deep 

 rose-color : calyx purplish : pods 4 to 5 inches long by about a line broad, erect or ascend- 

 ing, straight or curved, beaked with a short style ; stigma small ; seeds oblong, winged. — . 

 Jour. Acad. Philad. v. 134, t. 7. S. obtusifolius, Hook. Bot. Mag. t. 3317; Gray, Gen. 111. i. 

 t. 60, f. 4-8. ? Brassica Washitana, Muhl. Cat. 61. 1 Stanleya PFasAitena, DC. Syst. ii. 512. 



— Arkansas and E. Texas; St. Augustine, Leavemvortk. 



S. platy carpus, Gray. Branching from near the base, a foot high or more, glaucous : 

 lower leaves petiolate, lyrately pinnatifid ; the upper lanceolate to oblong-ovate, sessile and 

 amplexicaul, entire or pinnatifid : lower pedicels often minutely bracteate : flowers rose- 

 purple ; the calyx purplish : pods ascending on pedicels 3 to 6 lines long, slightly curved, 



2 to 3 inches long by 2 to 2^ lines broad ; the broad lobed stigma sessile : seeds somewhat 

 in 2 rows, suborbicular, broadly winged. — PI. Wright, ii. 10. — Valley of the Pecos, W. 

 Texas to Sonora. 



§ 2. EuCLi'siA, Nutt. Petals narrow (the blade scarcely broader than the 



claw), undulate-crisped. 



* Filaments distinct : cauline leaves clasping : pods not reflexed. 

 -I— Branches of the inflorescence bearing round cordate bracts ; the bracts also frequently 

 subtending or alternating with the lower pedicels : pods narrow : species of California 

 and Arizona. 



S. tortuosus, Kellogg. Stem more or less branched, ^ to 3 or 4 feet high : lower leaves 

 spatulate or oblauceolate and petiolate, somewhat toothed, becoming oblong to ovate, entire, 

 sessile and clasping ; the upper little reduced and of nearly uniform size, deeply clasping 

 with overlapping lobes : sepals acuminate, connivent ; the tips recurved in flower : petals 

 purple (rarely white), 3 to 6 lines long : pods recurved, spreading, 2 to 6 inches long by about 

 a line broad; the small stigma sessile ; seeds orbicular, narrowly winged. — Proc. Calif. 

 Acad. Sci. ii. 1.52, f. 46. aS. Breweri, Gray, Proc. Am. Acad. vi. 184, in part.i — Frequent in 

 the Sierra Nevada, from Mono Pass to Mt. Shasta ; near Humboldt Bay, Rattan. 



S. diversifolius, Watson. Resembling the preceding in habit: cauline leaves pinnately 

 divided ; the few segments very narrowly linear ; the slender petioles not auricled at the base : 

 bracts rounded-cordate and deeply clasping : flowers similar ; the white or pinkish petals 



3 to 4 lines long : pods reflexed, about 3 inches long by two thirds line broad, beaked with 

 a short style : pedicels 2 lines long or less : seeds broadly elliptical, narrowly winged. — Proc. 

 Am. Acad. xvii. 363. — On the Cosumne Piver, Eldorado County, California, Rattan. 



S.* suffrutescens, Greene. "Perennial, suffrutescent, the stout leafy trunk 6 to 8 inches 

 high ; flowering branches 1 to 2 feet long : herbage glalirous, glaucous : stem-leaves cuneate- 

 obovate, coarsely serrate-toothed ; floral leaves round-cordate or more elongated : sepals 

 purplish-green, their tips not reflexed : one pair of filaments connate ; all the anthers equal 

 and fertile." — Erythea, i. 147, & Man. Bay-Keg. 16 (whence foregoing characterization). — 

 Hood's Peak, Sonoma Co., Calif., Bioleiti. 



1 Add syn. S. orUculalus, Greene, Fl. Francis. 258 (= S. Bretveri, Gray, in part), a low and rathei 

 small-flowered form. 



