Oncidium, abbreviated as Onc. in the horticultural trade, is a genus that contains about 330 species of orchids from the subtribe Oncidiinae of the orchid family (Orchidaceae). As presently conceived, it is distributed across much of South America, Central America, Mexico and the West Indies, with one species (O. ensatum) extending into Florida. Common names for plants in this genus include dancing-lady orchid and golden shower orchid.
Aparisthmium is a plant genus of the family Euphorbiaceae first described as a genus in 1840. It contains only one known species, Aparisthmium cordatum, native to South America and Costa Rica.
Astrococcus is a genus of plant of the family Euphorbiaceae first described as a genus in 1854. It contains only one known species, Astrococcus cornutus, native to neighboring states of identical names, Amazonas State in southern Venezuela and Amazonas State in northwestern Brazil.
Haematostemon is a genus of plant of the family Euphorbiaceae first described as a genus in 1919. It is native to northeastern South America.
- Haematostemon coriaceus(Baill.) Pax & K.Hoffm. - Amazonas State in S Venezuela
- Haematostemon guianensisSandwith - Potaro-Siparuni region of Guyana
Brewcaria is a genus of plants in the family Bromeliaceae. The genus is named for Charles Brewer-Carías, Venezuelan explorer and naturalist. It contains 6 known species, all native to Colombia and Venezuela.
Connellia is a genus of plants in the family Bromeliaceae. The genus name is for Frederick Vavasour McConnell, English ornithologist and biologist (1868-1914). There are 6 known species, all native to the Guyana Highlands of Guyana and Venezuela.
Holmskioldia is a genus of flowering plants in the mint family, Lamiaceae. It is native to the Himalayas but widely cultivated as an ornamental and naturalized in many places It contains only one known species, Holmskioldia sanguinea, commonly called the Chinese hat plant, cup-and-saucer-plant or mandarin's hat.
Achnopogon is a genus of flowering plants in the daisy family, Asteraceae described as a genus in 1957.
Stalkya is a monotypic genus of flowering plants from the orchid family, Orchidaceae. The sole species is Stalkya muscicola, endemic to the Mérida region of Venezuela.
Excremis is a genus of herbs in the family Asphodelaceae, first described as a genus in 1829. There are only one known species, Excremis coarctata, native to South America.
Achlyphila is a genus of plants in the Xyridaceae, first described as a genus in 1960. It contains only one known species, Achlyphila disticha, endemic to the Serranía de la Neblina National Park in the State of Amazonas in southern Venezuela, very close to the border with Brazil.
Orectanthe is a genus of flowering plants, in the family Xyridaceae, first described as a genus in 1958. It is native to the tepui of northern South America. It is closely related to Abolboda, and both known species were originally classified as members of Abolboda before being transferred to Orectanthe.
Aratitiyopea is a monotypic genus of flowering plants, in the family Xyridaceae containing the single species Aratitiyopea lopezii. The genus was erected and described in 1984. This species is native to northern South America.
Miersiella is a genus of flowering plants in the Burmanniaceae, first described as a genus in 1903. It contains only one known species, Miersiella umbellata, native to South America.
Apteria is a genus of flowering plants in the Burmanniaceae, first described as a genus in 1834. It contains only one known species, Apteria aphylla, the nodding-nixie, native to the southern United States, Mexico, Central America, the West Indies, and South America.
Geissospermum is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1846. It is native to South America.
Spongiosperma is a genus of plant in family Apocynaceae first described as a genus in 1988. It is native to the South America, nations of Venezuela, Colombia, and Brazil.
Rhigospira is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1878 by John Miers. The species, Rhigospira quadrangularis was first described as Ambelania quadrangularis by Johannes Müller Argoviensis in 1860 but was transferred to the genus, Rhigospira, in 1878 by John Miers. The genus contains only one known species, Rhigospira quadrangularis, native to northwestern South America.
Amphiphyllum is a group of plants in the family Rapateaceae described as a genus in 1931.
Diploon is a genus of plant in the family Sapotaceae described as a genus in 1946.
