Cactus Evolution, Carribean Cactus Forests, & Tree Prickly Pears

Initial intro rant is 12 minutes and rambles on about the Prednisone worsening ADD, getting smacked in the face with Poison Ivy while filming magic mushrooms in Mexico etc.

A conversation with Dr. Lucas Majure from Florida Natural History Museum about evolution in the Cactus Family, Hummingbird-Pollinated Tree Prickly Pears, why one genus of Cactus wears a damn Fez (just like the shriners), the subtle nuances of Dogtooth Karst, Weird-Ass plants from Cuba that only grow on a certain soil type, and much more.