''Chionanthus balgooyanus'' is a tree in the family

Oleaceae Oleaceae, also known as the olive family or sometimes the lilac family, is a taxonomic family of flowering shrubs, trees, and a few lianas in the order Lamiales. It presently comprises 28 genera, one of which is recently extinct.Peter S. Gree ...

. It is named for the Dutch botanist Max van Balgooy.

Description

''Chionanthus balgooyanus'' grows up to tall, with a trunk diameter of up to . The bark is greyish green or dark brown. The flowers are white or greenish white.

Distribution and habitat

''Chionanthus balgooyanus'' is

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

Borneo Borneo () is the List of islands by area, third-largest island in the world, with an area of , and population of 23,053,723 (2020 national censuses). Situated at the geographic centre of Maritime Southeast Asia, it is one of the Greater Sunda ...

, where it is confined to

Sarawak Sarawak ( , ) is a States and federal territories of Malaysia, state of Malaysia. It is the largest among the 13 states, with an area almost equal to that of Peninsular Malaysia. Sarawak is located in East Malaysia in northwest Borneo, and is ...

. Its habitat is hill rain forest or lower montane rain forest from to elevation.

Conservation

''Chionanthus balgooyanus'' has been assessed as

endangered An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, inv ...

on the

IUCN Red List The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is an inventory of the global conservation status and extinction risk of biological ...

. Three subpopulations are recorded. One subpopulation is being logged, likely for its timber. Another subpopulation is subject to land conversion for agriculture. The subpopulation in

Gunung Mulu National Park The Gunung Mulu National Park, also known simply as the Mulu National Park is a national park in Miri Division, Sarawak, Malaysia. It is a UNESCO World Heritage Site that encompasses caves and Karst topography, karst formations in a mountainous ...

is afforded a level of protection there.

References

{{Taxonbar, from=Q16751153 balgooyana Endemic flora of Borneo Trees of Borneo Flora of Sarawak Flora of the Borneo lowland rain forests Flora of the Borneo montane rain forests Plants described in 2002