''Payena lamii'' is a tree in the family

Sapotaceae 240px, '' Madhuca longifolia'' var. ''latifolia'' in Narsapur, Medak district, India The Sapotaceae are a family (biology), family of flowering plants belonging to the order (biology), order Ericales. The family includes about 800 species of ev ...

. It grows up to tall with a trunk diameter of up to .

Inflorescences An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ...

bear up to 10 flowers. The fruits are ellipsoid, up to long. The tree is named for the Dutch botanist

Herman Johannes Lam Herman Johannes Lam (3 January 1892 in Veendam – 15 February 1977 in Leiden) was a Dutch botanist. Lam studied at Utrecht University, where he was awarded a Doctor of Biology in 1919. Lam was the appointed the director of the '' Rijksherbarium' ...

. Its habitat is swamp and ''

kerangas The Sundaland heath forest, also known as ''Kerangas'' forest, is a type of tropical moist forest found on the island of Borneo, which is divided between Brunei, Indonesia, and Malaysia, as well as on the Indonesian islands of Belitung and Bangk ...

'' forests from sea level to altitude. ''P. lamii'' is

endemic Endemism is the state of a species being found 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 found elsew ...

Borneo Borneo (; id, Kalimantan) is the third-largest island in the world and the largest in Asia. At the geographic centre of Maritime Southeast Asia, in relation to major Indonesian islands, it is located north of Java, west of Sulawesi, and eas ...

and known only from

Sarawak Sarawak (; ) is a States and federal territories of Malaysia, state of Malaysia. The largest among the 13 states, with an area almost equal to that of Peninsular Malaysia, Sarawak is located in northwest Borneo Island, and is bordered by the M ...

References

lamii Endemic flora of Borneo Trees of Borneo Flora of Sarawak Plants described in 1958 {{Tree-stub