indusium

An enclosing membrane, as that covering the sorus of a fern.

A layer of gray matter covering the corpus callosum in the brain: also indusium griseum.

One of the embryonic envelops developed, in addition to the amnion and serosa in certain insects, such as the

In Roman antiquity, one of the two tunics commonly worn by both men and women, probably the outer tunic, though some archæologists have contended that it was the inner tunic of the women.

In botany:

In entomology, the coat or covering of a larval insect, as the case of a caddis-worm.

In anatomy, the amnion, the innermost membrane enveloping the fetus.

A collection of hairs united so as to form a sort of cup, and inclosing the stigma of a flower.

The immediate covering of the fruit dots or sori in many ferns, usually a very thin scale attached by the middle or side to a veinlet.

A peculiar covering found in certain fungi.