It consists of arteries, veins and sinuses, but ramified capillaries are usually absent except in the integuments of Cephalopods.
In many bamboos they are long and spreading or drooping and copiously ramified, in others they are reduced to hooked spines.
Cometary science has ramified in unexpected ways during the last hundred years.
Anterior tentacles forming a scalloped frontal veil; dorsal appendages and tentacles similarly ramified.
Tegumentary papillae not ramified, and containing cnidosacs with nematocysts.