nearly to the same level. (Examples, parsley and carrot.)

UNGULATA. — Hoofed quadrupeds.

UNICELLULAR. — Consisting of a single cell.

VASCULAR. — Containing blood-vessels.

VERMIFORM. — Like a worm.

VERTEBRATA or VERTEBRATE ANIMALS. — The highest division of the animal kingdom, so called from the presence in most cases of a backbone composed of numerous joints or VERTEBRAE, which constitutes the centre of the skeleton and at the same time supports and protects the central parts of the nervous system.

WHORLS. — The circles or spiral lines in which the parts of plants are arranged upon the axis of growth.