CRUCIFER.E. 23 



VUl. WAREA. (aeomeo/EQ) 



Silique flat, stiped, elongatctl, slender, curved pendulous. — 

 Sepals deflected, spalulale, or ligulate, colored, caducous. Pc. 

 tals V Via, wiih ioMi; claws. With six glands at the base 



of th^ . ....:cns. Leaves entire. 



1. W. Ampleiifolia. Stem branched above, glabrous. Leaves oblonp, 

 ON •«'. Flou\Ts in unibel-like racemes, much crowded; petals with 

 till :,carl}'orbicuiar, claw longer than the limb. Silique linear, stipe fili- 

 form purplish. 



Pale purple. Q. Florida. 1-3 ft. 



2. \V. Cr.vEiFOLiA. Stem branched above, glabrou*!. Ia^vcs nearly ses- 

 sile, oblouc, obtuse, upper ones oblong-linear- Jxaiemis with the flowers clus- 

 tered at the extremities of the branrhes. Sepals miiiHtc. Petals with the 

 limb nearly round, supported <>n a lone claw. Stamens Ionizer than the petals. 

 Anthers WncAT. Stigmas sessile. Siliauc filiform, nearlv 2 inches long. 



While tinged with purple. 0. June and Aug. Middle Geo. and Car. 

 1-2 feet. 



Remarks.— T^i^ laal species is a beautiful plant, and would well repay the floriai't 

 care, if ii iiiipruved aonu by culiivalion. 



Tkibe III. BRASSICE.E. 



Silique dehiscent. Seeds globose with the radicle on the 

 back. Aunual and biennial herbs. 



V 



GExrs IX. SIN APIS. 



SiVque nearly terete, nerved. Style short, acute. Seeds 



in a single series. Sepals spreading. Leaves usually lyrate. 



Flowers in elongated racemes. 



1. S Nigra. Lower leaves large, lyrate, scabrous ; upper ones lanceolate 

 «nfire, glabrous. Sepals colored. Petah obovate, unguiculate. Silique ap- 

 pressed, about i o( an inch long, glabrous. £lack JIustard. 



Yellow. 0. June. Introduced. 



Rem rk.> —T\v seeds of the S. Ni^ra, (common musiarO) art- too ex'ensi^t-ly known 

 and u>eJ ', • ii> maud a iiuiiie of iheir nriif>enie8 lirre. 'Iliori? are circumstances con- 

 ntcUvi v>i' ' f ihcir well known prupcrties, which are singular and in- 



lere«:in?. s in a i>erfecily dry ?iaie, may bt- pressed and made to 



yield an ' if the active prv)[>enif'S uf nmsuird, iluse remaining in 



ihe se^d. ''.aint^ by wilcr, ii is powerful in its oj^fraiion, |irt>ducing 



t\<^ ■'- ''• ■■ ' ' !' seems does tini .-m^ r, k t rtipd jn the seed, 



V\. r. I he chemical the two is pn^ba- 



bi; - this is found in ill' rd in a principle 



called ."^uprto-otnaptairi. ^•g.iUt^ same properties as this oil, and formed by lb* 



action of waur. 



Tribe IV. SELENIE.E. 



Septum broad and membranaceous. Seeds inverted. 



Genus X. Si^LENIA 



SUicle broadly oval, acute at the base, margined. Seeds 

 orbicular, 4-6 in each cell, with a broad, thin, cartilaginous 

 border. Sepals colored ; glands 10. Petals erect. 



