Calyptranthes thomasiana
 Calyptranthes thomasiana (Thomas' Lidflower) is a rare species of plant in the Myrtaceae family. It is found on three islands in the Caribbean. There are fewer than 250 individuals total divided amongst the islands of Vieques in Puerto Rico St. John in the United States Virgin Islands and Virgin Gorda in the British Virgin Islands. It has been extirpated from the wild on Saint Thomas U.S.