Grimmeodendron is a plant genus of the family Euphorbiaceae first described as a genus in 1908. It is native to the West Indies.
- Grimmeodendron eglandulosum(A.Rich.) Urb. - Bahamas, Cuba, Haiti
- Grimmeodendron jamaicenseUrb. - Jamaica
Chascotheca is a genus of plants in the family Phyllanthaceae described as a genus in 1904. It is native to the western Caribbean.
- Chascotheca neopeltandra(Griseb.) Urb. - Cuba, Hispaniola, Cayman Islands
- Chascotheca triplinervia(Müll.Arg.) G.L.Webster - Cuba
Main Ridge is the main mountainous ridge on the island of Tobago, Trinidad and Tobago. It is a 29-kilometre (18 mi) chain of hills which runs from southwest to northeast between the Caribbean Sea and the Southern Tobago fault system and reaches a maximum height of 572 m (1,877 ft). The Main Ridge Forest Reserve, which was legally established in 1776, is one of the oldest protected areas in the world. It is a popular site for birdwatching and ecotourism. Main Ridge provides important habitat for native plants and animals, including several species endemic to Tobago.
Podocarpus coriaceus, commonly known as the yucca plum pine, is a species of conifer, an evergreen tree in the family Podocarpaceae. It is found in the Dominican Republic, Guadeloupe, Martinique, Montserrat, Puerto Rico, and Saint Kitts and Nevis.
Podocarpus trinitensis is a species of conifer in the family Podocarpaceae. It is endemic to Trinidad and Tobago, where it has only been recorded from the island of Trinidad. It has been recorded from 13 distinct localities in Trinidad, including sites in the Central Range and in central and eastern areas of the Northern Range.
Roupala is a Neotropical genus of woody shrubs and trees in the plant family Proteaceae. Its 34 species are generally found in forests from sea level to 4000 m altitude from Mexico to Argentina.
Symplocos octopetala is a species of evergreen woody plant with small white flowers in the family Symplocaceae. It is endemic to Jamaica. First described in 1788, the most recent concept of the species includes three taxa described as separate species in the late 19th and early 20th century.
Ignatz Urban was a German botanist. He is known for his contributions to the flora of the Caribbean and Brazil, and for his work as curator of the Berlin Botanical Garden. Born the son of a brewer, Urban showed an interest in botany as an undergraduate. He pursued further study at the University of Bonn and later at the University of Berlin where he gained a doctorate in 1873. Urban was appointed by A. W. Eichler to run the Berlin Botanical Garden and supervised its move to Dahlem. He also worked as Eichler's assistant on the Flora Brasiliensis, later succeeding him as editor. In 1884 Urban began working with Leopold Krug on his Puerto Rican collections, a collaboration would later produce the nine-volume Symbolae Antillanae, one of his most important contributions, and his 30-part Sertum Antillanum. Urban's herbarium, estimated to include 80,000 or more sheets, was destroyed when the Berlin Herbarium was bombed in 1943, during the Second World War.
The endemic flora of Trinidad and Tobago includes a total of 59 species of vascular plants belonging to 34 plant families. This is less than 3% of the total vascular plant flora of Trinidad and Tobago. Thirty-nine of these species are endemic to Trinidad, 12 are Tobagonian endemics, and six are present on both islands.
Dicliptera aripoensis is a species of plant in the family Acanthaceae which is endemic to Trinidad and Tobago. The species is only known from the Heights of Aripo, in Trinidad's Northern Range. It is a branching shrub, 1–1.5 m tall with red flowers about 3 cm long.
Justicia flaviflora is a species of herbaceous plant in the family Acanthaceae. It was previously classified as Beloperone flaviflora. The species is endemic to the island of Trinidad in the Caribbean republic of Trinidad and Tobago where it is only known from near the peaks of mountains in the Northern Range. It is an erect herb with leaves up to 27 cm (11 in) long. It is suffering from habitat degradation and has become increasingly rare, being now rated as "critically endangered".
Justicia tobagensis is a species of plant in the family Acanthaceae which is endemic to Trinidad and Tobago. The species is only known from two areas in the Main Ridge of Tobago. It was first described as Drejerella tobagensis by German botanist Ignatz Urban in his Symbolae Antillanae, based on a collection made by Danish botanist Henrik von Eggers
Aristolochia boosii is a species of woody vine in the Aristolochiaceae plant family which is endemic to Trinidad and Tobago. Known only from a few locations in southern Trinidad, the species was first collected by Julius Boos in 1977. After determining that it was new to science, the species was described by Jacqueline Anne Panter in 1981 and named for its discoverer.
The environment of Trinidad and Tobago reflects the interaction between its biotic diversity, high population density, and industrialised economy.
Duguetia tobagensis is a small tree in the plant family Annonaceae which is endemic to Trinidad and Tobago. The species is only known from Tobago.
Tetraperone is a genus of flowering plants in the cosmos tribe within the daisy family.
Koehneola is a monotypic genus of flowering plants in the daisy family. There is only one known species,Koehneola repens(O.Hoffm.) Urb.
Eosanthe is a monotypic genus of flowering plants in the family Rubiaceae. The genus contains only one species, viz. Eosanthe cubensis, which is endemic to Sierra Cristal National Park.
Marthella is a genus of flowering plants in the Burmanniaceae, first described as a genus in 1903. It contains only one known species, Marthella trinitatis, endemic to the Island of Trinidad. It is considered critically endangered and only naturally appears in Northern Range Forest Reserve Section B. As a conservation measure, it is being cared for in the Heights of Aripo Village as a form of ex situ conservation.
Chromolaena geraniifolia, is a West Indian species of flowering shrub in the sunflower family. It is native to the Commonwealth of Puerto Rico, part of the United States.
