POPULAR FLORA. 125 



1. Pod (siUque) generally several times hnger than wide. 

 Pod not splitting open "when ripe, but becoming liard, beak-pointed. Seeds round. 



Flowers pink or purple. Pod thick, fleshy when young, {Rdphanux) *Eadish. 



Flowers j'ellow, turning whitish or purplish. Pod long, necklace-shaped, 



(Raphanus, § RaphaTmii^m) Jointed-Charlock. 

 Pod splitting, i. e. opening when ripe by two valves, which fall ofif and leave the partition. 

 Pod ending in a beak. Seeds round. Flowers yellow. 



Calyx erect in blossom. Roots, stems, or leaves, &^^e- j , „ ^. . ( *TnKKip and 



coming fleshy in cultivation, f 1 *Cabbage. 



C.ilyx open or spreading in blossom, (Sinapis) JIcstakd. 



Pod not beaked, 1. e. not ending in a strong-pointed tip. Seeds flat or oblong. 

 Calyx unequal, two of the Sepals projecting or pouch-shaped at the base. 



Flowers yellow or orange. Pod and seeds flat, ( Qieirdn^us) * Wallflower. 



Flowere rose, purple, or white. Pods not flat. 



Stigmas thickened on the back. Seeds flat, {MattJitola) *Stock. 



Stigmas close-pressed together. Seeds oblong, {Mespeiis) *Rocket. 



Calyx equal, i. e. the sepals all alike or nearly so. 

 Pods flat. Flowers white or purple. 



Valves of the pod with a mid-nerve or vein, (Arabia) Eock-Ceess. 



Valves of the pod without a nerve. 



Stem-leaves alternate or scattered, ( Carddmine) Bitter-Ceess. 



Stem-leaves 2 or 3, whorled or clustered. Root fleshy, {DentaHa) Tooth wort. 



Pods obtusely 4-sided, linear. Flowers yellow, (Barbar'ea) Wister-Ceess. 



Pods awl-shaped. Flowers pale yellow, {Sisymbrium) Hedge-Must.ykd. 



Pods turgid, short-linear or oblong, {Nasturtium) Wateb-Ceess. 



2. Pod {silicle or pouch) shorty the length not wjore than two or three times the breadth. 

 Pod opening when ripe by 2 valves which fall ofi" and leave the partition. 



Pod globose or ovoid, many-seeded, (Armoracia) Horseradish. 



Pod pear-shaped, rather flattish, many-seeded. Flowers yellow, ( CameTina) False-Flax. 



Pod flat, with a broad partition. Seeds many, {Draba) Whitlow-Gieass. 



Pod flat, with a broad partition. Seeds 2 to 4. 



Flowers purple, large. Pod large, stalked above the calyx, {Lunaria) *Hoxesty. 



Flowere white, small. Pod small, 2-seeded, {Koniga) *S\veet-Alyssum. 



Pod flattened contrary to the narrow partition. Flowers white or purple. 



Seeds many; pod triangular-obcordate with a shallow notch, ( Capsella) Shepheed's-Puese. 

 Seeds only one in each cell. 



Petals all alike. Flowers very small, {LepUlium) Peppergrass. 



Petals unlike; the two on the outer side of the flower larger, (Iberis) *Caxdytuft. 



Pod not opening, 1-celled, 1-seeded, wing-like. Flowers yellow, (fsatis) *Wuad. 



Pod not opening, but jointed across the middle, fleshy. Flowers purplish, (CaiMe) Sea-Rocket. 



U. MIGNONETTE FAMILY. Order EESEDACE^. 



A family consisting of a few European herbs, with small and irregular flowers, which 

 deserves notice merely because it contains the 



