

NATURAL ORDERS 95 
. The Siliqua, as in the Wallflower and Cabbage. 
3 The Lomentaceous Siligua.—In this case the fruit is 
jointed, being divided by trans- 
verse partitions into as many 
segments as there are seeds; it 
dehisces transversely. This is — 
well seen in the Radish. 
The fruit of Sea Rocket (Cakile 
maritima) may be examined in— 
detail. This shows only two 
joints: the lower one is stalk- 
like, remains on the plant, and 
contains one ovule, which, how- : 
ever, does not usually develop fic. 62.—JomrEep Sm1QUA OF 
into a seed; the upper joint is -‘RADISE. 
mitre-shaped, falls off, and con- Sey stalk. en 
tains one seed. 
4. Indehiscent Siliqua.—lsatis, the Woad_ of the _ancient 
Britons, has a one-seeded, indehiscent, nut- like fruit, the stalk 
of which is long, slender, and drooping. 
Many plants belonging to this Order are eaten 
as vegetables, owing to the fact that in many 
cases the tap-root By tae swells out into the form of a 

Uses. 

ae oa. Ric. 64.—Frvir or Woap, 
Fic. 63.—FRvIT OF SEA de 
Rocket. 
tuber, as in turnips and swedes. It is stated by some botanists 
that many of the cruciferous plants used as vegetables have 
