CRUCIFEE^. 21 



Stem 2-4 feet high, glaucous. Cauline leaves ovate-lance- 

 olate or oblong, clasping with sagittate base. Pods long 

 and very narrow, on erect pedfceh. — Meadows and old fields. 

 Pretty easily recognized by its strict halait. 



7. A. eonft'nis, Watson. {A. Drummondii, Gray.) Flow- 

 ers white or rose-colour. Petals twice as long as the 

 calyx. Stem 1-2 feet high, smooth above. Cauline leaves 

 lanceolate or oblong-linear, with sagittate base; lowest 

 leaves spathulate and toothed. Pods long and flat; the 

 pedicels not so strictly erect as in the last species. — Eocky 

 banks of streams. 



8. A. Holboel'lii, Hoirnem. Petals white or- rose-colour, 

 occasionally purplish, becoming reflexed, twice as long as 

 the sepals. Stem 6-24 inches high, usually simple, more or 

 less hairy. Lowest leaves small, spathulate, somewhat 

 toothed, with margined petioles; upper sessile, sagittate,, 

 linear-lanceolate. Pods reflexed. Style none. — N. W. 



7. EKYS'MIII.II, L. Tkeacle MUSTARD. 



1. E. eheiranthoi'des, L. (Woem-sebdMustabd.) Flow- 

 ers yellow, inconspicuous. Stem slender, branching. Leaves 

 lanceolate, scarcely toothed, roughish with appressed pubes- 



Njence. Pods small and short, on slender diverging pedicels. 

 — Waste wet places. 



2. E. as'pepum, DC. (PraikieEocket.) Flowers s7jo«;2/, 

 bright orange-yellow, rarely purple. Stem stout, 1-2 feet 

 high, simple, hoary, with minute appressed hairs. Leaves 

 oblanceolate. Pods long, ascending on stout spreading pedi- 

 cels. — Dry soil, N. W. 



3. E. parviflO'PUm, Nutt. stem low and simple, hoary. 

 Leaves all linear, densely clustered at the base of the stem. 

 Flowers small, sulphur-yellow. Pods long, narrow, ascend- 

 ing, on short pedicels. — N. W. 



4. E. orientaUe, E.Br. Stem slender and branching, 

 1-2 feet high. Leaves grayish-green, oblong to oval, slightly 

 clasping ; radical ones spathulate. Flowers pale yellow or 

 oroam-coloured, sinall. — N, W. a»d Atl. Prov. 



