CAPPARIDACE^. 48 POLASISIA. 



1. R. RAPHANI'STRUM. 



Leaves \yvaie; siHque terete, jointed, smooth, 1-celled, becoming at length 

 2-celled and not jointed. Naturalized in cultivated fields and by road-sides. 

 Stem glaucous, branching, 1 or 2 feet high. The upper leaves are ovate-ob- 

 lonir, toothed. Flowers yellow or light blue, blanching as they grow old. 

 August. Wild Radish. 



2. R. SATI^VA. 



Leaves \yraXe ; silique round, torose, acuminate, scarcely longer than the 

 stalk. A well known salad root from China. It is well grown in gardens 

 with a deep sandy soil. There are many varieties, both with spindle-shaped 

 and turnip-shaped roots, arranged as the spring, summer, turnip, autumn and 

 winter radishes. Garden Radish. 



2G. CRAMBE. 

 Silicic with 2 joints, of which the lower is abortive, the 

 upper globose, 1-seeded. 



One of the ancient Greek names of the cabbage. 



C. MARI'TIMA. 



The Ion (T filaments forked; fnd bhint ; leaves roundish, sinuate, wavy, 

 toothed, glaucous, and with the stem, quite smooth. Native of England. Cul- 

 tivated 'for its early shoots, which are used as a substitute for asparagus. 

 Flowers white. Per. '^'fi" ^'"'e. 



ORDER XV. CAPPARlDACEiE. The Caper Tribe. 



Coi.— Sepals 4. 



(^;o,-._Petals 4, cruciate, unquiculate, liypogj-nous, more or less unequal. 

 ,Srto._6— 12, or some liish multiple of 4, almost perigynous. 

 To^-.—Sinall. "Itcii (■lllll^al.■ll, hrtiriu};- a single gland. 



0^.(l. Ollrii siipiinir. i.t -i iiiiili'il rarpcls. Styles united into one. Stigma di.seoid. 



jr,-._F,jth(M- p,ul-sli:iiii-d ;uui dclnsccnt, or fleshy and indehiscent. Placenta; usually two. 

 6ys.— Many, renitbrm. 



A small order of tropical plants. Six genera have been found in N. Aiuerica. Their 

 properties resemble those of the Crucifira;. One species ol Polamsia, which is the only 

 northern genus, is used as a vermifuge. 



P O L A N I' S I A . 



Sepals distinct, spreading; petals 4; stannens 8-^32 ; fila- 

 ments tiiiform, or dilated at the summit; torus minute; pod 

 linear. 



Annual herbs with a strong odor. 

 p. GRAVE'OLENS. Raf. Clcoine dodecandra. Mt. 



Viscid pubescent; /era-es ternate ; Zcr/^c^s elliptical-oblong; /yiocrs axillary, 

 solitary; stammsB — 12; siZif/iic^ oblong, attenuate at base. A strong-scented 

 plant, found on sandy shores. Stem a foot high, branching. Flowers reddish 

 while, in terminal racemes, with a variable number of stamens. Pods one- 

 celled, 2-valved, hairy and viscid hJce every other part ot the plant. Jl. Ann. 



