552 BRASSICACEAE 
Calyx of 4 m erect or appressed sepals. Corolla of 4 usually clawed 
petals, or wanting. cium 6 stamens with 1 pair shorter than 
the others, or rarely of 2 or 4 stamens. Gynoeci of 2 united carpels 
tigma depressed or 2-lobed. Fruit capsular, elongate (silique) or short 
] r 
(siliele), flat, terete, or angled.—About 200 genera and 1,800 species, of 
wide geographie distribution; many are cultivated, some are weeds. 
Pod Ou dehiscent or indehiscent, not transversely jointed. 
not stipitate. 
od flattened or compressed contrary to the nar- 
row partition Tribe I. LEPIDIEAE. 
Pod n compressed nor flattened contrary 
to e parti ion. 
Pod terete or prism 
Length of pod m p twice its width. 
"Se ds eere plants dd with 
mostly branched hair 
Pods globular, the valves nerve- 
less: cotyledons accumbent. Tribe II. PHYSARIEAE. 
Pods pyriform, the valves 1- 
nerved : cotyledons ee Tribe III. CAMELINEAE. 
tu lan 
simple hairs or Tla rous. - Tribe IV. COCHLEARIEAE. 
0 idt 
Pod pod tipped wi ith the short 
st 
Pod terete or nearly s 
See a. n 2 rows in peck cavity. Tribe IV. COCHLEARIEAE. 
See n 1 row in E cavity. Tribe | V. ERYSIMEAE. 
Pod 4- Sided or 4-angle ribe WI. BARBAREAE. 
markedly beaked. Tribe VII. BRASSICEAE. 
Pod flattened or compressed parallel to the 
broad partition. Tribe VIII. ARABIDEAE. 
Pod stipitate. Tribe IX. WAREAE. 
Pod transversely 2-jointed, the joints indehiscent. Tribe X. CAKILEAE. 
I. LEPIDIEAE 
Pods didymous, separating from the ea een as 2 plump 
nutlets. 1. CARARA. 
Pods flat, regularly dehiscent, many-seeded. ' 
Pods cuneate, wingless, 1-several-seeded. 2. BURSA. 
ods Ve cular to elliptic or obovate, wing- -margined at 
ast at the apex. 
Seeds solitary in each cavity of the pod. 3. LEPIDIUM. 
Seeds several in each cavity of the — 3a. THLASPI. 
II. PH 
Stellate-pubescent herbs with mostly yellow pm and in- 
flated pods. 4. LESQUERELLA. 
III. CAMELINEAE 
Erect herbs with yellowish flowers and obovoid or pyssorm 
turgid pods. 5. CAMELINA. 
IV. COCHLEARIEAE 
Pod less than twice as long as wide. 
Corolla yellow. 6. RADICULA. 
Corolla white. 
Plant with a long pungent tap-root: stamens with 
Short filaments and Ed id anthers appendaged at 
the tip: style very s 1. ARMORACIA. 
Plant with elongate Sota o cess stamens with slender 
EE nts and sagittate unappendaged Bes: sty le 
slender 8. NEOBECKIA. 
Pod over twice as long as wide. . 
Corolla yellow : leaf-blades toothed or pinnatifid. 6. RADICULA. 
Corolla white: leaf-blades pinnately divided. 9. SISYMBRIUM. 
V. ERYSIMEAE 
Leaf-blades pinnatifid or se toothe 
An a A pod ure and tapering to the apex, ap- 
ra 
to the 
Outer sepals not Horned: corolla yellow or white. 10. ERYSIMUM. 
uter sepals horned: corolla mo or purple. 11. IODANTHUS. 
Anthers ellipsoid-sagittate : pod very slender but not taper- 
ing to the apex, widely spreadi ine 12. NORTA. 
