Alstonia penangiana
Content
Description
Tree 17-32 m high, 35 cm dbh.
Bark smooth, grey or pale brown.
Branchlets glabrous.
Leaves in whorls of 3 or 4;
Inflorescences 5.5-12 cm long, many-flowered;
Flowers with a slightly sour odour.
Sepals connate at the base for 0.8-1 mm, ovate, 1.7-2.5 by 0.8-1.5 mm, acute or obtuse, pubescent outside and on the free parts inside.
Stamens inserted at 3.5 mm from the base;
Fruit (known only from the type specimen) a pair of follicles, 60 cm by 3.5 mm, glabrous.
Seeds dark brown, narrowly ovate or elliptic, 8.5 by 1.8-2 mm, pubescent, one end acute or acuminate, acumen 1-1.5 mm long, the other end obtuse or rounded;