Montserrat, like many isolated islands, is home to rare, endemic plant and animal species. Work undertaken by the Montserrat National Trust in collaboration with the Royal Botanic Gardens, Kew has centred on the conservation of pribby (Rondeletia buxifolia) in the Centre Hills region. Until 2006, this species was known only from one book about the vegetation of Montserrat. In 2006, conservationists also rescued several plants of the endangered Montserrat orchid (Epidendrum montserratense) from dead trees on the island and installed them in the security of the island's botanic garden.