Draha. CRUCIFER^. 107 



-t- H— Leaves coarsely few-toothed or entire : pedicels more remotely racemose. 

 ++ Flowers small, white : stigma sessile or nearly so. 

 D. CUneif olia, Ndtt. Loosely stellate-pubesceut, usually brauchiug from the base ; branches 

 leafy below and obovate to oblanceolate, acute or acutish, 4^ to 2 inches long : raceme pedun- 

 culate, at length elongated : flowers small : pods linear-oblong, usually acutish, 3 to 6 lines 

 long, 16-50-seeded, hispid with short sub-appressed simple hairs (very rarely glabrous), on 

 spreading or divaricate pedicels 1 to 3 lines long; stigma sessile or nearly so. — Nutt. in 

 Torr. & Gray, Fl. i. 108; Brew. & Wats. Bot. Calif, i. 28. D. ^filicaulis, Scheele, Linna^a, 

 xxi. 583. — Illinois (?); Kentucky, Short, to Alabama; Arkansas and Texas, and west to 

 S. California ; S. Ctah, Purri/, and Jordan Valley, Watson. 



Var. platycarpa, Watsox, l. c. Pods oblong-oval, mostly obtuse, 2^ to 4 lines long, 

 equalling or exceeding the pedicels. — D. plutijcarpa, Torr. & Gray, Fl. i. 108. D. Rcemeri- 

 ana, Scheele, 1. c. — Te.xas to Arizona. 



Var. integrifolia, Watson, 1. c. Small (1 or 2 inches high) : leaves small, mostly 

 entire: pods ghibrous, on pedicels about a line long. — Coast ranges of S. California; 

 Temescal Mountains, fire we?- ; Pasadena, Los Angeles Co., O.D.Allen; Santa Maria, Jared. 



D. Sonorse, Greene. Racemes usually nearly sessile and flowers very small : pods finely 

 stellate-pubescent, 3 lines long, on pedicels 1 or 2 lines in length. — Bull. Calif. Acad. Sci. 

 ii. 59 ; Wats. 1. c. — Santa Catalina Mountains, Arizona, Lemmon ; Chollas Valley, Saii 

 Diego Co.,1 Calif., Orcutt. (Mountains uf Northwestern Sonora, Pn'iu/le.) The pubescence 

 of the pods is the most constant character distinguishing this species from the last. 



D. braehycarpa, Nutt. 1. c. Simple or branched, 1 to 6 inches high, somewhat appressed 

 stellate-pubescent : leaves ovate to ovate-oblong, half inch long ; the cauline oblong-lanceo- 

 late or linear, obtuse or acute : peduncles short : flowers very small : pods narrowly oblong, 

 acutish, glabrous, 1 or 2 lines long, 1 0-1 2-seeded, about equalling the divaricate pedicels; 

 stigma nearly sessile. — Virginia to Georgia and west to Missouri and Louisiana ; Roseberg, 

 Oregon, Howell. 



++ -H- Flowers yellow, large : st3'le slender. 



D. Mogollonica, Greene. Stems simple or loosely branching from base, about a foot 

 high, villous or loosely .stellate-pubescent below : leaves mostly at the base, oblanceolate, 

 stellate-pnbescent, 1 to 3 inches long : flowers large, in broad racemes which are elongated 

 in fruit : sepals glabrous : pods linear or ol)loug, glabrous, 4 to 8 lines long, with a slender 



style a line long, on usually divaricate pedicels 3 to 9 lines in length. — Bot. Gaz. vi. 157. 



In the Mogollon and Santa Magdalena Mountains, New Mexico, Rnsby, Greene. 



D. (^) asprella, Greene. Pubescent with .spreading simple or forked hairs: scape-like 

 peduncles one to several : filaments dilated downward : pods oblong-elliptical, somewhat 

 turgid, hispid, on divaricate pedicels; style slender. — Bull. Torr. Club, x. 125 ; Wats. 1. c. 

 257. — Arizona. A doubtful species by reason of the turgid pods and dilated filaments. 

 Mature fruit has not been seen. 



* * High mountain or northern species : leaves entire or few-toothed : flowers small, yellow, 

 !)ecomiiig whitish : stigma sessile. 



D. nemorosa, L. Slender, loosely stellate-pubescent, branching and leafy below, a foot 

 high or less : leaves rarely rosulate, ovate to oblong-lanceolate, an inch long or less, acutish : 

 racemes nearly sessile : calyx somewhat villous : petals small : pods narrowly oblong, 

 minutely pubescent or rarely gla])rous, 3 or 4 lines long, on spreading or divaricate pedicels 

 6 to 12 lines long ; stigma nearly sessile. — Spec. ii. 643. D. nemoralis, Elirh. Beitr. vii. 154. 

 D. lutea, Gilib. ace. to DC. Syst. ii. 351, & I), gracilis, Graham, Edinb. New Phil. Jour. 1828, 

 172, the form with glabrous pods (var. leiocarpa, Liiidbl.). — From the Great Lakes (Ft. 

 Gratiot, Michigan, Pitcher; Michipicotin, Lake Superior, ace. to Macoun) across the plains 

 to the Rocky Mountains, N. Colorado, Central Idaho, the lower Columbia Valley, and north- 

 ward into Brit. America. (Eu., Siberia.) 



D. Stenoloba, Ledeh. Slender : stem erect or lax, afoot high or less, simple or branching 

 below, villous toward the base : leaves thin, mostly subrosulate, oblong-obovate or oblanceo- 

 late, the one or two cauline ovate to oblong-lanceolate, acutish, mostly entire, often glabrous 



1 Panamint Mountains, Calif., and Vegas Wash, S, W. Nevada, ace. to C'oville, 1. c. 



