Henry Trimen

Bromus benekenii is a species of grass in the family Poaceae. Its native range is Northwestern Africa, Europe to China.

Spenceria ramalana is the lone species in the plant genus Spenceria, known by two varieties. S. ramalana grows from 18–32 cm. tall, and puts out yellow flowers from July through August; bearing fruit (yellowish-brown achenes) from September to October. The Chinese name, ma ti huang [马蹄黄], can be translated to mean "yellow horseshoe".

Bulbophyllum crassifolium is a species of orchid in the genus Bulbophyllum from Sri Lanka.

Vatica obscura is a species of plant in the family Dipterocarpaceae. It is a tree endemic to Sri Lanka. It is a Vulnerable species threatened by habitat loss.

Litsea ovalifolia is a species of plant in the family Lauraceae. It is endemic to Sri Lanka.

Zeuxine longilabris is a terrestrial orchid species belonging to the family Orchidaceae. It is seen across Indo-Malesia. It is a slender, small sized plant with lower creeping stem and an erect part growing up to 25cm. Flowers are white with coarsely toothed petals. Flowering season is late fall to early winter.

Wrightia flavorosea, was a flowering plant in the genus Wrightia. It was endemic to Sri Lanka, where the plant is known to be extinct. The plant was first described by Henry Trimen in 1885.

Phyllorachis is a genus of African plants in the grass family. The only known species is Phyllorachis sagittata, native to the Democratic Republic of the Congo, Tanzania, Zambia, Angola and Malawi.

Hortonia angustifolia is a species of plant in the Monimiaceae family. It is endemic to Sri Lanka.

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Litsea nemoralis is a species of plant in the family Lauraceae. It is endemic to Sri Lanka.

Litsea glaberrima is a species of flowering plant in the family Lauraceae. It is a tree endemic to Sri Lanka.

Eugenia rotundata is a species of plant in the family Myrtaceae. It is endemic to Sri Lanka.

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Stemonoporus revolutus is a species of flowering plant in the family Dipterocarpaceae. It is a small tree endemic to southwestern Sri Lanka. It is known from six locations in hill evergreen rain forest. It is threatened by overharvesting for timber, and by habitat loss from deforestation for expansion of smallholder farms and plantations.

Shorea dyeri is a species of plant in the family Dipterocarpaceae. It is endemic to Sri Lanka.

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Palaquium thwaitesii is a species of plant in the family Sapotaceae. It is endemic to Sri Lanka.

Hopea cordifolia is a species of flowering plant in the family Dipterocarpaceae. It is a tree endemic to Sri Lanka. It is native to the Walawe and Kirindi river basins in southwestern Sri Lanka, where it grows in riparian lowland rain forest. Its wood is dark yellowish brown, very hard and heavy. It is capable of standing up to great transverse strains. It is durable and takes polish very well. Its density is 64 to 76 pounds per cubic foot (1.03 to 1.22 kg/dm3). The species was first described as Vatica cordifolia by George Henry Kendrick Thwaites in 1864. In 1893 Henry Trimen placed the

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Beilschmiedia zeylanica is a species of flowering plant in the family Lauraceae. It is a tree which grows up to 20 metres tall and is endemic to southwestern Sri Lanka. It grows in lowland and montane rain forests from 500 to 1,300 metres elevation. It is threatened by habitat loss from deforestation to expand farms, plantations, and mines.

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