Cucumber tree - found only on Socotra Island, Yemen. The island is very isolated and through the process of speciation, a third of its plant life is found nowhere else on the planet. It has been described as the most alien-looking place on Earth.
When I die I want my ashes put into a bio urn, my husband's ashes to be joined with mine when he passed and the seed of a tree to be planted. I envision us growing like this together forever. Awww, Mark wants to be fish food, but maybe he'll reconsider :)
Rainbow Eucalyptus Tree - Patches of outer bark are shed annually at different times, showing a bright green inner bark. This then darkens and matures to give blue, purple, orange and then maroon tones.