274 CRUCIFERAE 
The corollas are all regular. All have 4 petals, equal and simi- 
lar, forming a cruciform flower. The sepals are also 4, and equal. - 
The ‘Stamens are 6 in number and, unlike the corolla, are unequal, 
“+ <-~Ieneon than the remaining 2; in some species some of the 
“1 y Yat: 
Leaves feauner~1ror cn yp 
Leaves not feather-formed, sinuses shallow or none Thlaspi 
Pod broader than long, 0s 4. 7 4 eG ee 6 ee A eremomee 
SECOND GROUP 
Fruit oval or globular, not flattened or only slightly so. 
Flowers white or purple. 
Fleshy plant growing in sand at sea side . . . . . Cakile 
Aquatic plant with awl-shaped leaves, all basal . . Subularia 
Plants not fleshy and leaves not awl-shaped nor all basal. 
Leaves mostly in a whorl about the base, plants gen- 
erally ess) than! 7a) toot hioh si a eee Draba 
Leaves not mostly in whorl] at base, plants 1 ft. high or 
MOTE: he Sy as Pete el ae i ets er nS Ren 
Flowers yellow. 
Leaves claspinge stem by a broad base. 
Pods marked by distinct reticulations . . . . Neslia 
Pods not reticulated . . i: . . . . -» Camelia 
Leaves not clasping stem by a broad base. 
Leaves small, Sia ahaa a pod without a conspicu- 
OUB)S BUYING) i aeons Aye wah cy) Sah aay lait Alyssum 
Leaves pinnate (2 Hedas b) by, Saas v2 
Tuirp GROUP 
Fruit in linear pods (siliques, see page 38, Part I), generally in 
length more than 4 times the diameter of the flower. Exception, No. 
18, about twice the length of the diameter of the flower. 
Flowers yellow. 
Pods not jointed nor markedly constricted between the seeds. 
Leaves, at least the lower ones, feather-formed. 
