The nervous system of BrachioDiagram showing the muscular pods has, as a rule: maintained system.
The pods of Acacia nilotica, under the name of neb-neb, and of other African species Acacia Senegal, flowering branch, natural size (after A.
Alfarrobeira) also produce edible seed-pods somewhat resembling beans.
The spines and pods of the plant are often mixed with it.
The chief of these silk cottons is kapok, consisting of the hairs borne on the interior of the pods (but not attached to the seeds) of Eriodendron anfractuosum, the silk cotton tree, a member of the Bombacaceae, an order very closely allied to the Malvaceae.