Noel Yvri Sandwith

Combera is a genus of flowering plants belonging to the family Solanaceae. Its native range is Southern South America. Species: Combera minima Sandwith Combera paradoxa Sandwith

Physalis acutifolia is a species of flowering plant in the nightshade family known by the common names sharpleaf groundcherry and Wright's ground-cherry. It is native to the southwestern United States from California to Texas, and northern Mexico, where it can be found in many types of habitat, including disturbed areas. It is sometimes a weed when it springs up in agricultural fields, but it is generally not weedy in wild habitat. This is an annual herb producing a branching stem up to a meter tall. The lance-shaped to oval leaves are up to 12 cm long and have edges lined with shallow,

Dialium guianense is a species of tree in the flowering plant family Fabaceae. The species occurs through North America (South Eastern Mexico), Central America and South America, and was an important source of food and wood for the ancient Mayans.

Tabebuia roseo-alba, known as white ipê, ipê-branco or lapacho blanco, is a tree native to Cerrado and Pantanal vegetation in Brazil, but also appears in Argentina (especially in the "Esteros del Ibera" wetlands) and more rarely in Paraguay. This plant is frequently used as an ornamental plant and honey plant in Brazil and Argentina. On the other hand, its flowers seem to be less popular with many hummingbirds than those of other Tabebuia, being visited mostly by the occasional generalist species like the gilded sapphire (Hylocharis chrysura).

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Rinorea endotricha is a species of plant in the Violaceae family. It is found in Guyana and Venezuela.

Inga bollandii is a species of plant in the family Fabaceae. It is found only in Brazil.

Casearia mexiae is a species of flowering plant in the family Salicaceae. It is endemic to Ecuador. Its natural habitat is subtropical or tropical moist montane forests.

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Dinklageodoxa is a monotypic genus of flowering plant belonging to the family Bignoniaceae. It contains just 1 species, Dinklageodoxa scandens. Its native range is Liberia in Africa. The genus name of Dinklageodoxa is in honour of Max Julius Dinklage (1864–1935), a German merchant who collected plants in West Africa. The Latin specific epithet scandens means "to climb". It was first published by Heine & Sandwith in Kew Bull. Vol.16 on page 223 in 1962.

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Whittonia is a monotypic genus of flowering plants belonging to the family Peridiscaceae. It only contains one known species, Whittonia guianensis. It is native to Guyana. The genus name of Whittonia is in honour of Brian Alan Whitton (b. 1935), an English botanist at Durham University. The Latin specific epithet of guianensis means "of the Guianas" (an area of north eastern South America). Both the genus and the species were first described and published in Kew Bull. Vol.15 on page 468 (written 1961, publblished in 1962).

Tynanthus polyanthus, the bejuco de clavo is a flowering plant species in the genus Tynanthus.

Tabebuia elliptica is a species of Tabebuia tree native to Brazil and Bolivia.

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Eschweilera potaroensis is a species of woody plant in the family Lecythidaceae. It is found only in Guyana.

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Eschweilera fanshawei is a species of woody plant in the family Lecythidaceae. It is found only in Guyana.

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Couratari calycina is a species of woody plant in the family Lecythidaceae. It is found only in Guyana.

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