Stipe - Definition and Overview

In botany, a stipe is a stem type of structure.

It may be a stemlike structure, as of a seaweed, or a true leaf stem, as of a fern.

In the case of the fern, the stipe is only the petiole ( = stem) from the rootstock to the beginning of the leaf tissue, or lamina.

The continuation of the structure within the lamina is then termed a rachis.

This structure is particularly common in brown algae such as kelp.

A stipe is the stalk-like support of a pistil.

In orchids, the stipe or caudicle is the stalk-like support of the pollinia. It is a non-viscid band or strap connecting the pollinia with the viscidium (= the viscid part of the rostellum or beak).

A stipe is also the stalk supporting the fruiting body of some fungi.