Peter C. van Welzen

Mallotus nudiflorus (syn. Trevia nudiflora), the false white teak, is a species of flowering plant in the family Euphorbiaceae. It is native to the Indian Subcontinent, southern China, Southeast Asia, western Indonesia, and the Philippines. It is a medium-sized tree, typically 10–20 m (33–66 ft) tall.

Guioa malukuensis is a species of plant in the family Sapindaceae. It is a tree endemic to the Maluku Islands in Indonesia. It is a vulnerable species threatened by habitat loss.

Guioa grandifoliola is a species of plant in the family Sapindaceae. It is endemic to Papua New Guinea.

Guioa asquamosa is a species of plant in the family Sapindaceae. It is endemic to Timor and Flores in Indonesia. It is a vulnerable species threatened by habitat loss.

Guioa waigeoensis is a species of plant in the family Sapindaceae. It is endemic to West Papua (Indonesia).

Guioa unguiculata is a species of plant in the family Sapindaceae endemic to Papua New Guinea.

Guioa scalariformis is a species of flowering plant in the family Sapindaceae. It is endemic to Papua New Guinea.

Guioa palawanica is a species of plant in the family Sapindaceae. It is endemic to the Philippines, in Palawan.

Guioa multijuga is a species of plant in the family Sapindaceae. It is endemic to West Papua (Indonesia). It is a vulnerable species threatened by habitat loss.

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Hancea integrifolia is a plant species in the family Euphorbiaceae. It is native to Mauritius and Réunion. It is a tree with unisexual flowers and occurs at an altitude of 1000 m asl.

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Lasiococca brevipes, synonym Lasiococca malaccensis, is a species of flowering plant in the family Euphorbiaceae, native to the Lesser Sunda Islands, Peninsular Malaysia, the Philippines, and Sulawesi. It was first described by Elmer Drew Merrill in 1915 as Mallotus brevipes.

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Guioa novobritannica is a species of plant in the family Sapindaceae. It is a tree endemic to the island of New Britain in Papua New Guinea. It is known only from Mt. Tangis in Western New Britain, where is grows in submontane rain forest dominated by species of Casuarinaceae at around 740 meters elevation.

Guioa normanbiensis is a species of flowering plant in the family Sapindaceae. It is a tree endemic to Normanby Island in the Louisiade Archipelago of eastern Papua New Guinea. It is typically a small tree of about 7 metres but can grow up to 20 metres tall. It is native to lowland rain forest, typically growing along gullies from sea level up to 200 metres elevation.

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