Daphne was a girl that Apollo fell in love with. But Daphne was not in love with Apollo. He was smitten with her and chased her, but she called for her father to help her. She turned into a laurel/bay tree as Apollo was able to catch her and hold her. Because he could never love her this way, he honored her memory by creating the laurel/bay wreath in her honor and memory.
Apollo also travelled with Dionysus-Osiris on his global journeys to civilize the world.
Source:
http://en.wikipedia.org/wiki/Apollo_and_Daphne
