'Ulu and his wife lived in the village of Waiakea on the Big Island. They had a son named Moku'ola. Moku'ola is small and always sick. At that time there was no food to feed their young son. 'Ulu is a fisherman. Every morning he paddled out in his canoe to go fishing. One day 'Ulu said to his wife,"What can we do for our son, he will die soon because of food shortage? " 'Ulu and his wife decided that 'Ulu should die so that their son will survive. 'Ulu and his wife then prepared to make the offering at the heiau. They walked along Wailuku River near Hilo. 'Ulu washed himself and prayed to the gods out loud:

Later 'Ulu went back home and told his wife, "Tonight I will take my last breath. When my spirit has left, bury me close to the stream near the door to our home, then wait inside the house. You may hear sounds of leaves and flowers and later heavy fruit falling to the ground. If you do, then my prayers have been answered. Our son will not starve, he will be saved. With those words 'Ulu died. Later that night his wife heard the noises her husband said she might hear. The next morning she saw a tree with broad leaves and on the ground were large ripe fruits fallen from the tree. The large tree grew where 'Ulu's body was buried. That is the legend of the 'Ulu Tree

http://www.k12.hi.us/~klee_loy/Myths,%20stories,%20legends%20of%20Hawai'i.htm