coriaceous

The fourth glume is coriaceous, with a bisexual or female flower.

Those whose food is succulent grow more rapidly than those which have for their food dry gramineous plants and coriaceous lichens.

Broadly effused, sometimes shortly reflexed; coriaceous, at length thick and rigid; pileus at length smooth, brownish.

There is also a genus of carnivorous habits, called the Sphargis, or coriaceous turtle.