Split a squash seed, and between the two fat sides the caulicle lies cozily tucked, like a tiny tail or handle.
The process of soaking starts the growth of the caulicle of the pea.
A secondary office is to hold the seed firmly, so that the caulicle can enter the ground.
When seeds germinate, the lower end of the caulicle, which becomes the root, bears large numbers of root-hairs.
You can see the little stem, or caulicle in fat seeds like squash and melon, beans and pease.
The caulicle can be proved by the manner of its growth to be of the nature of stem, not root.
It will throw out roots and the pupil will readily understand that the caulicle does the same thing.
They have said that the caulicle was the part to grow first, and have spoken of the arched form of the young stem.
Roots can also grow from the sides of the caulicle, as in Indian Corn.
The root of the Morning-Glory is primary; it is a direct downward growth from the tip of the caulicle.