Magnolia tsiampacca (L) Figlar & Noot., Blumea 49 (2004)

Synonyms
Elmerrillia celebica (Koord.) Dandy
Elmerrillia mollis Dandy
Elmerrillia papuana (Schltr.) Dandy
Elmerrillia papuana var. adpressa Dandy
Elmerrillia papuana var. glaberrima Dandy
Elmerrillia sericea C.T.White
Elmerrillia tsiampacca (L.) Dandy
Michelia arfakiana Agostini
Michelia celebica Koord.
Michelia forbesii Baker
Michelia mollis (Dandy) McLaughlin
Michelia tsiampacca L.
Sampacca sylvestris Rumph.
Talauma papuana Schltr.

Description
Upper canopy tree up to 47 m tall and 116 cm dbh. Stipules large, forming ring scar around the twigs when dropped. Leaves alternate, simple, penni-veined, hairy, sometimes whitish below. Flowers ca. 53 mm diameter, white-yellowish, placed solitary. Fruits ca. 90 mm long, red, elongate central axis with many carpels. Seeds with red aril.

Ecology
In undisturbed to old secondary mixed dipterocarp to sub-montane forests up to 1000 m altitude. Usually on alluvial sites on sandy soils, but also on limestone. In secondary forests usually present as a pre-disturbance remnant tree.

Uses
The timber is used for construction, furniture, boats and plywood.

Distribution
Sumatra, Borneo (Sarawak, Sabah, West-, Central- and East-Kalimantan), Celebes, Moluccas, New Guinea.

Local names
Borneo: Aran, Arau, Arau sejam, Maharu, Medang, Miharo, Minag, Miwi, Sempaka, Talak uma.