Glossaries
Plants

Alternate

Placement of leaves, branches, etc, that is, by turns, on one side of a stem and then the other, and no two are at the same level.

Botany

The science of plant life.

Cotyledon

Food-storage organ in a seedling.

Crown

Upper part of a tree, including the branches and foliage.

Flora

The plant life of a region.

Germination

The development of a seed in such a way as to grow new plants.

Herbarium

A collection of dried plants.

Lichen

An alga and a fungus that are growing in association.

Opposite

Arranged in facing pairs.

Petiole

The stalk of a leaf.

Seedling

Young plant from the start of germination, when it relies on the seed for nourishment, until it is able to grow on its own, nourishing itself through its own system.

Stipule

Appendage at the base of the leaf.

Stomata

Small openings on the surface of leaves that let air and water-vapour in and out (in other words, to breathe and transpire).

Testa

External coating of a seed.