pyxidium

A pyxis.

In botany, same as pyxis, 9.

[capitalized] In zoology, a genus of Vorticellinidæ.

A pod which divides circularly into an upper and lower half, of which the former acts as a kind of lid, as in the pimpernel and purslane.

The theca of mosses.

A seed capsule in the form of a box, the seeds being released when the top splits off.

fruit of such plants as the plantain; a capsule whose upper part falls off when the seeds are released