116 WANN, 



annual, 2-3 high, with spreading branches. Leaves alternate, clasp- 

 ing, sinuately pinnatifld, and bordered with prickly teeth, spotted 

 with white along the primary veins. Flowers terminal, yellow or whit- 

 ish, l'-3' in diameter. Capsule about 1' long. 



Introduced in the neighborhood of Honolulu rather abundantly, and ID other part*. 

 Of American origin, but now very abundant in all tropical countries. 



ORDER IV. 



Herbs, sometimes shrubby plants, with a pungent watery juice, 

 and regular flowers ; known from all others by the 4 sepals and 4 petals 

 along with hypogynous tetradynamous stamens (i. e. 6, two of which 

 are shorter than the other four), the fruit (called a silique, or when 

 short a silicle) a 2-celled capsule but with 2 parietal placentae. But in 

 two of the genera the silicle has only a single seed in each cell. Em- 

 bryo variously folded: no albumen. A large order in cool regions, 

 well known by such representative as the Mustard (Sinapis nigra and 

 S. alba), AVater-Cress (Nasturtium officinale), Eadish (liaphanus sati- 

 vus) ; Cabbage and Turnip (Brassica oleracea and B. Eapa) &c. 



Silique slender, several seeded, 1. CAnDAMlNE, 



Silicle only 2 - seeded, 



Very flat, opening by 2 valves discharging the seed, . . . ". . . 2. LEPIDIUM. 



Two-lobed, splitting into 2-closed pieces, 3. SENEBIEBA. 



1. CARDAMIJiTE Linn. [Paihi.] 



Pod linear, flattened, usually opening elastically from the base ; 

 the valves nerveless or veinless or nearly so ; seeds in a single row in 

 each cell, wingless ; their stalks slender. Cotyledons with the radicle 

 applied to their edges. Flowers white or purple. Herbs. 



A large genus, mostly in .the temperate and colder regions both of the northern an<J 

 outhcrn hemispheres. 



i. C. IIIKSUTA Linn. (Enum. No. 4.) Mostly smooth, sometimes 

 hairy ; leaves pinnate with 3-15-leaflets, or lyrate-pinnatifld ; leaflets 

 of the lower leaves rounded, angled or toothed ; of the upper, oblong 

 or linear, often entire ; petals twice as long as the calyx (white); the 

 narrow pods and slender pedicles upright : style shorter than the 

 width of the pod. 



In woods, iii districts of "Waimea and.Kona, Hawaii. (Probably introduced) . An almost 

 world wide plant. 



2. LEPIDITJM Linn. 



Pouch roundish, much flattened contrary to the narrow partition, 

 and notched at the apex ; the valves narrow, boat-shaped and keeled. 

 Seeds one in each cell, pendulous. Seeds usually with the radicle 



