POPULAR FLORA. 125 
1. Pod (silique) generally several times longer than wide. 
Pod not splitting open when ripe, but becoming hard, beak-pointed. Seeds round. 
Flowers pink or purple. Pod thick, fleshy when young, (Raphanus) *Rapisn. 
Flowers yellow, turning whitish or purplish. Pod long, necklace-shaped, 
Raph , § Raphanistrum) JoinTED-CHARLOCK. 
Pod splitting, i.e. opening when ripe by two valves, which fall off and leave the partition. 
Pod ending ina beak. Seeds round. Flowers yellow. . 
Calyx erect in blossom. Roots, stems, or leaves, &e. be- (Brassica) { * TURNIP and 
coming fleshy in cultivation, *CABBAGE. 
Calyx open or spreading in blossom, (Sinapis) Musrarp. 
Pod not beaked, i. 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, ( Cheiranthus) *WALLFLOWER. 
Flowers rose, purple, or white. Pods not flat. 
Stigmas thickened on the back. Seeds flat, (Matthiola) *Srock. 
Stigmas close-pressed together. Seeds oblong, (Héesperis) *Rocker. 
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, ( Arabis) Rock-CreEss. 
Valves of the pod without a nerve. = 
Stem-leaves alternate or scattered, (Cardémine) BirTER-CREss. 
Stem-leaves 2 or 8, whorled or clustered. Root fleshy, (Dentaria) Toormwort. 
Pods obtusely 4-sided, linear. Flowers yellow, (Barbaréa) WinTER-Cress. 
Pods awl-shaped. Flowers pale yellow, (Sisymbrium) HrpGE-Mustarp. 
Pods turgid, short-linear or oblong, (Nasturtium) WatEr-CreEss. 
2. Pod (silicle or pouch) short, the length not more than two or three times the breadth. 
Pod opening when ripe by 2 valves which fall off and leave the partition. ; } 
Pod globose or ovoid, many-seeded, (Armoracia) HORSERADISH. 
Pod pear-shaped, watliee flattish, many-seeded. Flowers yellow, (Camelina) Fause-Fuax. 
Pod flat, with a broad partition. Seeds many, (Draba) WuitLtow-Grass. 
Pod flat, with a broad partition. Seeds 2 to 4. 
Flowers purple, large. Pod large, stalked above the calyx, (Lunaria) *Honzsty. 
Flowers white, small. Pod small, 2-seeded, (Kéniga) *SwEetT-ALYssuM. 
Pod flattened contrary to the narrow partition. Flowers white or purple. 
Seeds many; pod triangular-obcordate with a shallow notch, ( Capsélla) SHEPHERD’s-PuRSE. 
Seeds only one in each cell. 
Petals all alike. Flowers very small, (Lepidium) PEPPERGRASS. 
Petals unlike; the two on the outer side of the flower larger, (Ibéris) *CANDYTUFT. 
Pod not opening, 1-celled, 1-seeded, wing-like. Flowers yellow, (satis) *Woan. 
Pod not opening, but jointed across the middle, fleshy. Flowers purplish, (Cakile) Ses-RocweEr. 
ll. MIGNONETTE FAMILY. Order RESEDACEA. 
A family consisting of a few European herbs, with small and irregular flowers, which 
deserves notice merely because it contains the : 
