Term:

Staminal tube

Definition:

A tube formed by fusion of staminal tissue.

Notes:

In the Lecythidaceae, staminal tubes are found in species of Allantoma, Cariniana, Grias, and Gustavia. A staminal tube does not have a staminal ring and all species having one possess actinomorphic flowers except for the zygomorphic staminal tubes of species of Cariniana.