Palaquium formosanum Hayata

No specimen has been seen by the authors. The description is based on the original protolog and P. Royen (Blumea: 10: 472. 1960).

Timber. Fruit edible.

Trees 5--7(--20) m tall. Bark dark brown. Branchlets terete, reddish brown tomentose or glabrous, with distinct leaf scars. Leaves alternate, closely clustered at end of branchlets; stipules lanceolate, grayish tomentose abaxially, early deciduous; petiole 7--12 mm, yellowish puberulent; leaf blade thickly leathery, ovate-oblong, obovate, or spathulate, 10--17 X 4.5--7.5 cm, both surfaces glabrous or with clustered white hairs on veins, cinnamomous puberulent on veins when young, base broadly cuneate, apex rounded to cordate, lateral veins 10--12 pairs. Flowers axillary, solitary or in clusters of 3--6. Pedicels angular, 7--12 mm, thickened in fruit and to 2.8 cm, yellowish rust colored tomentose. Sepals broadly ovate, 4--4.5 X 4--5 mm, outside brownish tomentose, enlarged in fruit and to ca. 6 X 5 mm. Corolla pale yellowish gray, 6-lobed. Stamens 12--15, included. Ovary 6-locular. Fruit ellipsoid, often oblique, 4--5 X 1.5--2 cm, apex rounded to subtruncate, often with a ca. 1.5 cm persistent style. Seeds fusiform, compressed, ca. 3.5 X 1.1 X 0.9 cm.

Forests; low elevations. Taiwan [Philippines]

Palaquium hayatae H. J. Lam.

Palaquium formosanum là một loài thực vật có hoa trong họ Hồng xiêm. Loài này được Hayata mô tả khoa học đầu tiên năm 1911.

大葉山欖（学名：Palaquium formosanum，又名:台湾胶木、杆仔樹、臭屁梭；噶瑪蘭語:qasup、達悟語:kolitan）是山榄科胶木属的植物，常綠喬木。分布於菲律賓、臺灣北部東部及南端海岸與蘭嶼綠島等地。多生于低海拔林中，主要作為海岸防風樹。樹皮可做為染料、果實可食用，目前已由人工引种栽培。