234 Oedbe 13— CRUOIPER-S!. 



eeme, -wliioh bsoomes 1 — 2f long, and environed hj the appressed sessile pods. 

 Jn., Sept. Medicinal. § Eur. 



2 S. Sdphia L. Plkweed. Iais. bipinnatifid, lobes linear-oblong, acute, incised; 

 sspals longer than the petals ; silique linear, slender, erect, longer than the spread- 

 ing pedicel. — Plattsburg, K T. (Mrs. Conant), and Can. along the St. Lawrence. 

 Stems erect, 1 — 2f high. Leaves ovate in outUne, finely dissected, almost tripin- 

 natifid. Kls. very small, pale yellow. SiUques 1' long, very narrow, in long 

 racemes. July. 



3 S. oanisoens Nutt. Tanset Mdstabd. Lvs. bipinnately divided, canescent, 

 lobes oblong or lanceolate, subdentate, obtuse; peUHs about equalling tJie calyx ; 

 siligues oblong-linear, ascending, shorter {or never longer) than the spreading pedi- 

 cels.-^' Arctic Sea to Florida. Plant 1 — 2f high, often nearly smooth. Lvs. 

 about 3' long, sessile, lance-oblong in outline, segm. 5 — 7 pairs, finely divided. 

 Pis. very small. Siliques 3 — 6" in length, the seeds somewhat 2-rowed. Variable. 

 Mar., Jn. 



13. WAREA, Nutt. (Named in honor of Mr. Ware, the discoverer.) 

 Sepals colored, ligulate ; petals with very slender claws, longer than 

 the lamina; silique flattened, long and slender, raised on a slender 

 stipe ; stamens nearly equal, 0||. — (D Glabrous, entire-leaved plants, with 

 the aspect of Cleome. Fls. white or purple, in short racemes. Siliques 

 curved and declinate. 



1 W. ouueifolia Nutt. Lvs. oblong, obtuse, cuneate at base, and sub-sessile. — 

 Dry hills, Ga. (Mettaaer) and Pla. St. 1 — 2fhigh, branched above. Lvs. J — ^1' 

 long, rather thick, the upper linear. Pis. in showy clusters at the summits of the 

 branches, white or purplish. Pedicels divergent. Sta. exserted, with the anth- 

 ers finally ciroinate. Petals with remarlcably slender claws 2" in length, lamina 

 1". Siliques IJ' or more in length, 4 times longer than the filiform stipe. 

 Jn., Aug. 



2 'W. amplezifolia Nutt. I/vs. oblong-ovate, partly clasping. — ® Pla. In all 

 other respects like No. 1, and in all probability not distinct fi'om it. 



14. HtSPERIS, L. Rocket. (Gr. eanepa, evening ; when the 

 flower is most fragrant.) Calyx closed, furrowed at base, shorter than 

 the claws of the petals ; petals bent obliquely, linear or obovate ; sil- 

 ique 4-sided, 2-edged or subterete ; seeds not margined ; stigmas 

 forked, with the apices converging (0||). — Fls. cyanic. 



1 H. matronalis L. St. simple, erect ; lvs. lanceolate-ovate, denticulate ; petals 

 emarginate, mucronate ; pedicels as long as the calyx. — A fine garden peren- 

 nial, said to be found native about Lake Huron. St. 3 — 9f high. Pis. purple, 

 often double, and white in /3 hortensis. f Eur. ' 



2 H. dprioa L. St. erect, simple, pubescent : lvs. oblong, obtuse, entire, ciUcUe 

 hispid ; pedicels as long as the calyx. — If From Siberia. Stem a foot high. 

 Pis. purple. May, Jn., \. 



15. SINAPIS, Tourn. Mustard. (The Greek name, aivam.) Sepals 

 equal at base, spreading ; petals ovate, with straight claws ; siliques 

 subterete ; valves veined ; style short and subulate, or ensiform ; seeds 

 in a single series, globular (0»). — Fls. always yellow. 



1 S. nigra L. Black Mustard. Smooth; silique smooth, somewhat i-angled,' 

 appressed to the rachis, and beaked with a slender, 4-sided style. — (^ In culti- 

 vated grounds and waste places. St. 3 — 6f high, round, smooth, striate, branch- 

 ing. Lvs. all petiolate, lower ones variously lyrate and dentate, upper ones 

 lance-linear, pendulous, entire. Sep. and pet. sulphur-yellow. Pods very nume- 

 rous, nearly 1' long. Sds. numerous, small, globous, nearly black, well known 

 as a condiment. Jn., July., if § Bur. 



