162 THE FLORA. 



** Plants growing wild, or cultivated for food. 



( flowers yellow 8 



1 Fruit a silique, 2-ceUed leiDgttwise, \ ^^^^^ ^^j^^^ ^^^pl^^ ^^ 5 



, „ . .,. , „ M J 1 ;.i. ■ ( flowers yellow 5 



I Fruit a silicle, 2-oelled lengthwise, -j „ •' , .^ , j. ■ „ 



° I flowers white, purple, &o 2 



1. Fruit a jointed pod, with the partitions crosswise . , . . 11 



2 Silicle flattened or turgid, with a broad partition 4 



2 Siliele flattened contrary to the narrow partition 3 



5 Silicle triang., seeds several in each cell. Shepherd'' s-pwae. Capsel'la. 3 



8 Silicle roundish, with one seed in each ceU. Pepper-graas. Lepid'ium. 4 

 3 Silicle double, with one seed in each lobe. S. Swine Cress. Senebie'ka. 5 



4 Silicle flattened. Leaves oauliue or radical. WMtlow-grass. Deaea. 6 



4 Silicle turgid. Leaves cauline. Horse Sadish. Aemoea'oia. 



4 Silicle turgid. Leaves all radical. r. Awlwort. Sdeula'bla. 



6 Silicic obovoid, ».«., inversely egg-shaped, turgid. False Flax. Cameli'ha. 

 5 Sil. globose, turgid, membranous. Style long. Mladdev-pod. Vesioa-'ria. 

 5 Silicle oblong, turgid, and somewhat terete. Cress. Nastur'ticm. 



6 Seeds arranged in two rows in each cell, not winged. &i'ess. Nastde'tium. 



6 Seeds in two rows in each cell, wing margin. Tower-Ttmstard. TaE''EiTia. 



6 Seeds arranged in a single row in each cell 7 



7 Sil. linear, flattish, caeli valve with 1 central vein. Jiock Cress. Ae'abis. 7 

 7 Silique lanceolate, flat, the valves veinless. Tootli-root. Denta'eia. 8 

 7 Siliques linear, veinless, tej'ete. Flws. purple. False Boclcet. Iodan'thus. 



7 Siliquea linear, veinless, flat. Fls. whitish. Cuckoo-flovjer. Caei>ami'ne. 9 



8 Seeds ovato or oblong 9 



8 Seeds globose 10 • 



8 Seeds flat, with a broad, winged margin. S. Leayenwoeth'ia. 



9 Calyx i-open. Lvs. runoinate,. or finely dissect. Hedge-mustard. Sisym'beicm. 

 9 Calyx closed. Leaves lyrate-pinnatifid. Winter Cress. Barea'eea, 10 

 9 Calyx closed. Leaves lanceolate. False Wallflower. Ebys'iudm. 11 



10 Calyx spreading. Valves of the pod 1-3- veined. Mustard. Sina'pis. 12 



10 Calyx mostly erect. Valves of the pod 1-veined. Cabbage, d:c. Beas'sioa. 

 H Pods short, 2-jointed, with 1 seed in each joint. Seor-rochet^ Caki'le. , 



II Pods with several transverse joints and cells. Radish. Ka'ph'anus, 



1. IBE'EIS. Candy-tuft. 



The two outside petals larger than the two inside ones. Pods flattened, 

 truncate, emarginate, the cells one-seeded. — Foreign, ornamental plants. 



1 Flowers white. . Plain about If. high 2-4 



1 I. umbella'ta. ' Purple C. Fls. purple, in umbels. Lvs. serrate, upper entire, 

 2 I. ama'ra. Bitter C. Corymbs lengthening into racemes. Lvs. slightly toothed. 

 8 I. pinna'ta. WinijAeaved C. Corymbs scarcely lengthening. Leaves pinnatifid. 

 4 I. saxat'ilis. Bock C. Corymbs not lengthening. Shrubby. Lvs. linear, entire. 



