Peter Shaw Ashton

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Parashorea macrophylla is a species of flowering plant in the family Dipterocarpaceae. It a tree endemic to Borneo, where it is native to Brunei, Sarawak, and West Kalimantan. The name macrophylla is derived from Greek (makros = big and phullon = leaf) and refers to the species extremely large leaves (30-50 x 16–24 cm). It is a large evergreen tree, which can grow up to 50 metres tall with a bole up to 100 cm in diameter. It grows in lowland mixed dipterocarp rain forest, often in periodically flooded riverine areas, up to 300 metres elevation. The timber is sold under the trade name of white

Rubroshorea macrophylla (called, along with some other dipterocarp species, light red meranti) is a species of flowering plant in the family Dipterocarpaceae. It is a tree endemic to Borneo.

Pakaraimaea is a genus of trees in the family Cistaceae. The genus contains a single species, Pakaraimaea dipterocarpacea, from South America. It was formerly placed in subfamily Pakaraimoideae of the family Dipterocarpaceae. The species is found in the western highlands of Guyana and in adjacent Bolivar State in Venezuela. It maintains strong ectomycorrhizal associations with a wide variety of fungal species. The trees can sometimes be seen forming large stands in the western Guyanas.

Dipterocarpus cuspidatus is a tree in the family Dipterocarpaceae.

Vatica pentandra is a species of plant in the family Dipterocarpaceae. It is a tree endemic to Borneo. It is a critically endangered species threatened by habitat loss.

Neobalanocarpus is a monotypic genus of plants in the family Dipterocarpaceae. The single species, Neobalanocarpus heimii, is a tropical hardwood tree. Common names for the tree and its wood products include chengal, chan ta khien, chi-ngamat, takian chan, and takian chantamaeo. The tree grows over 60 m (197 ft) tall. Chengal is considered the number one wood (classified as heavy hardwood) of Malaysia and export of logs is prohibited due to its scarcity. The species is listed as endangered on the IUCN Red list.

Vatica soepadmoi is a species of flowering plant in the family Dipterocarpaceae. It is a tree endemic to eastern Sumatra. It is a critically endangered species threatened by habitat loss. The species was described by Peter Shaw Ashton in 1978.

Vatica rynchocarpa is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet rynchocarpa means "snout fruit", referring to the beak-like shape of the nut.

Vatica rotata is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet rotata means "wheel-like", referring to the lobes of the fruit calyx.

Vatica parvifolia is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet parvifolia means "small leaf".

Vatica hullettii is a species of plant in the family Dipterocarpaceae. It is a tree endemic to Peninsular Malaysia. It is a Vulnerable species threatened by habitat loss. The species was first described as Capura hullettii by Henry Nicholas Ridley in 1910. In 1978 Peter Shaw Ashton placed the species in genus Vatica as V. hullettii.

Vatica globosa is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet globosa means "spherical", referring to the nuts.

Vatica coriacea is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet coriacea means "leathery", referring to the leaves.

Vatica congesta is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet congesta means "congested or combined", referring to the inflorescences.

Vatica compressa is a tree in the family Dipterocarpaceae, native to Borneo. The species was described by Peter Shaw Ashton in 1967. The specific epithet compressa means "compressed", referring to the twig when young.

Vatica chartacea is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet chartacea means "papery", referring to the leaves.

Vatica cauliflora is a species of plant in the family Dipterocarpaceae. It is a tree endemic to Kalimantan on Borneo. It grows in lowland rain forest near rivers. It has a limited range and is threatened by habitat loss, with a declining population. The IUCN Red List assesses the species as Critically Endangered. The species was described by Peter Shaw Ashton in 1978.

Vatica brevipes is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet brevipes means "short foot", referring to the petiole.

Vatica badiifolia is a tree in the family Dipterocarpaceae, native to Borneo. The specific epithet badiifolia means "chestnut brown leaf", referring to the colour of the dry leaf.

Rubroshorea bullata (called, along with some other species in the genus Rubroshorea, dark red meranti) is a species of plant in the family Dipterocarpaceae. It is a tree endemic to Brunei and northeastern Sarawak on the island of Borneo. The species was first described as Shorea bullata by Peter Shaw Ashton in 1962. In 2022 Ashton and Jaqueline Heckenhauer placed the species in genus Rubroshorea as R. bullata.

Hopea brevipetiolaris is a species of flowering plant in the family Dipterocarpaceae. It is a tree endemic to Sri Lanka. It is native to southwestern Sri Lanka, where it grows on rocky summits in remnant lowland semi-evergreen rain forest. Two subpopulations are known, the larger at the summit of Dunkanda in Kurunegala District and a small number of trees on Dombagaskanda in Kalutara District.

Dipterocarpus fusiformis is a species of tree in the family Dipterocarpaceae. The tree is endemic to Borneo, where it is found in Central and East Kalimantan provinces of Indonesia and Sabah state of Malaysia.

Anisoptera reticulata is a tree in the family Dipterocarpaceae. The specific epithet reticulata means "netted", referring to the leaf veins.

Vatica brunigii is a species of flowering plant in the family Dipterocarpaceae. It is a tree native to Borneo and eastern Sumatra. In Borneo it is native to western Brunei, Sarawak, and western Kalimantan. It grows up to 30 metres tall. It grows in heath forests and on dry ridges. It is threatened by habitat loss, and the IUCN Red List assesses the species as near threatened. The species was described by Peter Shaw Ashton in 1967. This tree has some medicinal properties.

Rubroshorea splendida is a species of plant in the family Dipterocarpaceae. It is a tree endemic to Borneo. It is threatened by habitat loss.

Rubroshorea rubella (called, along with some other dipterocarp species, light red meranti) is a species of tree in the family Dipterocarpaceae. It is endemic to Borneo. The species was first described as Shorea rubella by Peter Shaw Ashton in 1962. In 2022 Ashton and Jacqueline Heckenhauer placed the species in genus Rubroshorea as R. rubella.

Rubroshorea pallidifolia (commonly known, along with some other species in genus Rubroshorea, as red meranti) is a species of plant in the family Dipterocarpaceae. It is a tree endemic to western and central Sarawak on the island of Borneo. It is native to lowland heath or kerangas forest up to 400 metres elevation. The species was first described as Shorea pallidifolia by Peter Shaw Ashton in 1967. In 2022 Ashton and Jacqueline Heckenhauer placed the species in genus Rubroshorea as R. pallidifolia.

Richetia mujongensis is a species of tree in the family Dipterocarpaceae. It is endemic to Borneo.

Shorea ladiana is a species of plant in the family Dipterocarpaceae. It is endemic to Borneo.