Native Orchids of Trinidad and Tobago provides detailed descriptions of the native species and varieties of orchids from Trinidad and Tobago. The Orchidaceae is the largest family of flowering plants with between 15,000 and 20,000 known species and varieties in from 500 to 600 genera; and new ones are being discovered by almost every botanical expedition to tropical areas. In Trinidad and Tobago, the Orchidaceae is the second largest family of flowering plants in terms of number of species. The native species and varieties known at the present time number 181, and they belong to sixty-six gene