“No man is an island entire of itself; every man / is a piece of the continent, a part of the main” So wrote John Donne in his oft-quoted Meditation XVII. Theodore Fleming, we can assume has, at least at some point in the past, likely read Donne’s famous meditation, and perhaps was even thinking about it as he examined the discoveries he made in his study of cactus pollination and pollinators near Sonora, Mexico.