= Fruit winged on the margins 
CL MW. 
/O Bach leeute of the fruit usually l-seeded; 
/4 fruit 3-5 mm, long Oe Lepidium 
/C Bach leeule of the fruit usually 2-seededs 
fruit 12-15 mm, long, or if less, 
14 
not notched 6. Thlaspi 
8 Fruit not winged on the margins, obcordate or wedge-shaped 
Te Capsella 
<' 3bFruit little or not at all flattened or flattened parallel to 
= the partition 
(- Stems 40-60 cm, tall; fruit obovate 8, Camelina 
- Stems less than 10 om, tall 
8 Plants terrestrial; pubescence branched 9. Draba 
@& Plants aquatic, .glabrous 10. Subularia 
A &bFruit linear or linear-oblong in outline, or sometimes lanceolate 
Y or elliptical, at least 3 to many times as long as broad, 
‘commonly columnar or 4-angled, sometimes tapering 
‘| Ja Fruit distinctly flattened parallel to the partition 
Fruit 6-15 mm, long (see also Arabis Nuttallii) Se Draba_ 
Fruit 2-10 cm, long (sometimes less in Arabis 
Nubtellii) 
Fruit rarely longer than 3 em,, the valves not 
nerved but smooth; herbage glabrous ll. Cardamine 
Fruit mostly longer than 3 cm, (except A. Nut- 
tallii) usually bearing a vein or rib 
down the middle of each valve3 herbage 
usually pubsscent, at least at the base 
of the plant 12. Arabis 
193 - 
pice Rien SEY = 
