CRUCIFERA. 449 
by valves ; the replum in its narrower diameter (fig. 894). 
Illustrative Genera :—Capsella, Moench ; Iberis, Linn. 
Sub-order 4. Nuewmentacex.—Fruit an indehiscent silicula ; 
often 1-celled, owing to the absence of the replum. [Ilustra- 
tive Genus :—Isatis, Linn. 
Fie. 892. Fie. 893. Fie. 894. 
Fic. 895. Fic. 896. Fic. 897. 
Fig. 892. Essential organs of the Wallflower (Cheiranthus Cheiri). 7. Tha- 
lamus. gl. Glands. ec. Tetradynamous stamens. sft. Stigmas. Fig. 893. 
An unripe siliqua of the Wallflower, with one of the valves removed to 
show the replum, and the stalked pendulous seeds. Fig. 894. The sili- 
cula of Shepherd’s Purse (Capsella Bursa-pastoris) inthe act of dehiscing, 
showing the stalked pendulous seeds. Fig. 895. Silicula of the Scurvy- 
grass (Cochlearia officinalis) in the act of dehiscing.— /ig. 896. The em- 
bryo of Bunias orientalis. Fig. 897. The embryo of the Cabbage plant 
(Brassica oleracea). 1. Undivided. 2. Horizontal section. 7. Radicle. 
c. Cotyledons. 
Sub-order 5. Septulatex.—The valves of the fruit opening lon- 
gitudinally and bearing transverse septa in their interior. 
There are no examples among British plants. 
Sub-order 6. Zomentacex.—Fruit a siliqua or silicula, dividing 
transversely into 1-seeded portions, the true siliqua sometimes 
barren ; the beak placed above it containing one or two seeds. 
Illustrative Genera :—Cakile, Gaert.; Raphanus, Lini. 
GG 
