Megistostigma is a genus of plant of the family Euphorbiaceae first described as a genus in 1887. It is native to southern China, Assam, and Southeast Asia.
- Megistostigma burmanicum - Assam, Myanmar, Thailand, Perlis
- Megistostigma cordatum - Sumatra, Sabah, Samar
- Megistostigma glabratum - Peninsular Malaysia, Anamba Islands, N Sumatra
- Megistostigma peltatum - Siberut, Natuna, Java
- Megistostigma yunnanense - Yunnan
Agonandra is a genus of plants in the family Opiliaceae described as a genus in 1862.
Pladaroxylon is a genus of trees in the tribe Senecioneae within the family Asteraceae.
Hirtella is a genus of 110 species of woody trees in family Chrysobalanaceae. It was first described as a genus by Linnaeus in 1753. Hirtella naturally occurs in tropical forests throughout Latin America, the West Indies, southeast Africa, and Madagascar. The flowers are mainly pollinated by butterflies.
Triuris hyalina is a species in genus Triuris. It is a tiny flowering plant no more than a few cm tall, lacking chlorophyll and obtaining its nutrients from fungi in the soil. It is known from Brazil, Suriname, Guyana, Colombia, Venezuela.
Cyclanthus bipartitus a species of plant in the family Cyclanthaceae, first described as a genus in 1824. It is native to southern Mexico, Central America, Trinidad, Windward Islands, northern South America.
Thoracocarpus is a genus of plants first described as a genus in 1958. It contains only one known species, Thoracocarpus bissectus a hemiepiphytic vine. It is native to Costa Rica, Panama, Cuba, Trinidad and Tobago, and South America.
Sievekingia is a genus of orchid, comprising 20 species found in Central and South America, from Nicaragua east to the Guianas and south to Bolivia.
Rhytachne is a genus of plants in the grass family. They grow principally in wet savannahs in Africa and the Americas. More specifically, they tend to prefer transitional zones between marshes and drier upland savannahs. In the Americas the genus can be found from southern Mexico and Cuba south to northern Argentina, while in Africa it is present in Sub-Saharan Africa, including in Madagascar. Twelve species are included, of which nine are African, two are American, and one, Rhytachne subgibbosa, is found on both continents. The genus is closely related to Coelorachis.
Aechmea contracta is a species of flowering plant in the Bromeliaceae family. It is native to Venezuela, Colombia, Peru, Guyana and northern Brazil.
Tillandsia turneri is a species of flowering plant in the family Bromeliaceae. This species is native to Venezuela, Colombia, Guyana, and northern Brazil.
Amasonia is a genus of plants in the family Lamiaceae, native to South America and to the island of Trinidad.
Euterpe catinga is a palm species in the genus Euterpe. It is found in forests of a dry, sandy soil and very peculiar vegetation, known as catinga forests or Campinarana in northern South America.
Macradenia lutescens is a species of epiphytic orchid known by the common name longgland orchid. It is native to South America, the West Indies, and southern Florida.
Hylaeorchis is a genus of epiphytic orchids. There is only one known species, Hylaeorchis petiolaris, native to northwestern South America.
Dictyostega is a genus of flowering plants in the Burmanniaceae, first described as a genus in 1840. It contains only one known species, Dictyostega orobanchoides, native to southern Mexico, Central America, Trinidad, and South America ).
Blepharodon is a genus of plant in the family Apocynaceae, first described as a genus in 1844. They are native primarily to South America, with one species extending into Central America and Mexico.
Schiekia is a genus of herbs in the family Haemodoraceae, first described as a genus in 1957. It contains only one recognized species, Schiekia orinocensis, native to South America. This plant grasped the minds of many scientists who tried fruitlessly to discover its purpose in the natural order.
Dimerocostus is a group of plants in the Costaceae described as a genus in 1891. It is native to Central and South America.
Weddellina is a monotypic genus of flowering plants belonging to the family Podostemaceae. It only contains one known species, Weddellina squamulosa.
