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The Bahamian Flora: Plant Exploration, Living Collections, and DNA – A Journey Started in 1963

Abstract:

Dr. John Popenoe was Director of Fairchild Tropical Botanic Garden (FTBG) between 1963 and 1989. Dr. Popenoe was a strong supporter of the Bahamian flora, and in 1963 he obtained extramural funds to develop a living collection focusing on Bahamian plants that was established in FTBG. During his tenure FTBG supported the publication of the latest comprehensive flora of this archipelago. A project initiated by the first FTBG herbarium curator, William Gillis, but published by Donovan and Helen Correll (with illustrations of Priscilla Fawcett) in 1982. This living collection of Bahamian plants has supplied plant material for molecular phylogenetic studies worldwide. There are DNA phylogenies for only 10 of the 89 Bahamian endemics; most of the material of these phylogenies came from plants from these collections (three species) and/or from fragments of herbarium specimens collected by Donovan Correll (six species). Only two of the species included in these phylogenies are from collections unrelated to FTBG. Excluding species restricted to the Bahamas, material from 14 Caribbean Island endemics that are part of these collections has been used in phylogenetic studies. The available molecular phylogenies show that the Bahamian endemics are closely related to species from the West Indies or continental areas of the Caribbean Basin. There is also a paucity of population genetic studies based on DNA markers focusing on Bahamian plants. Only two of the four available population genetic studies are for a Bahamian endemic taxon.