20 6. CRUCIFER^. 
lateral slender and branching. Seeds in a single row, 
striate ; seed-stalk flattened, vnnged. 
12. Erysimum. Pod 4-edged ; valves prominently keeled, 
with 1 longitudinal vein. Seeds in a single row ; seed-stalk 
filiform. ^ 
Tr. ni. BRASSICEjE. Cotyledons conduplicate (longitudi- 
nally folded in the middle) ; radicle dorsal, within the fold. 
13. Brassica. Cal. erect. Pod terete or angular. Seeds 
globose, in a single row. 
14. SiNAPis. Cal. spreading (in the flower). Pod terete or 
ang^ar. Seeds in a single row. 
15. DiPLOTAXis. Cal. patent. Pod compressed. Seeds oval 
or oblong, in 2 rotes. 
Suborder II. LATISEPT^. 
Pouch (silicle) short, not dividing transversely, opening with 
two valves ; dissepiment in its broadest diameter. 
Tr. IV. ALYSSINEjE. Cotyledons accumbent. 
16. Alyssum. Pouch roundish or oval, compressed. Seeds 
2 — 4 in each cell. Filaments toothed or the shorter ones 
with a gland or subulate process on each side at the base. 
[17. KoNiGA. Pouch oval, compressed, sessile in the calyx. 
Seeds 1—2 in each cell. Filaments simple. Hypogijnous 
glands 8.] 
18. Draba. Pouch oval or oblong, slightly convex. Seeds 
many in each cell, not margined, in 2 rows. Filaments 
simple. 
19. CocHLEARiA. Pouch globose ; valves very convex, dbrsal 
vein prominent. Seeds many. Filaments simple. 
20. Armoracia. Pouch oblong or globose ; valves very con- 
vex, no vein. Seeds many. Filaments simple. 
[Tr. V. CAMELINEjE. Cotyledons incumbent. 
21. Camelina. Pouch subovate ; valves ventricose with a 
linear prolongation at the end which is confluent with the 
persistent style.] 
[Tr. VI. VELLEJE. Cotyledons conduplicate. 
22. Vella. Pouch ovate with a dilated winged flat style 
longer than the convex valves.] 
