A brown form often has the shape of a human ear, so it is called by common names such as Jelly Ear, Tree Ear, or Wood Ear. The technical name for the species Auricularia auricula-judae is derived from the Latin word for ear. It grows on trees and fallen logs, but a similar Jelly Ear named Exidia recisa (shown here) commonly is found on small, dead branches on the ground. Their shape and color also is similar to that of a large prune. When dry, it is a thin brownish-black growth not easily seen until it becomes saturated with water after rains. This fungus can absorb water and eventually weigh over 60 times its dry weight.