Lasianthus perakensis King & Gamble

Zhu, H., Roos, M. C. & Ridsdale, C. E., 2012, A taxonomic revision of the Malesian species of Lasianthus (Rubiaceae), Blumea 57 (1), pp. 1-102 : 73

94. Lasianthus perakensis King & Gamble

Key to the varieties

1. Leaves with nerves 7–8 pairs, 15–25 by 5.5 – 8 cm; rusty-puberulous on branches, midrib and nerves beneath; drupes c. 4 mm diam, sessile.............. a. var. perakensis

1. Leaves smaller with nerves 3–5 pairs, 13–16 by 3–4.5 cm; sparse puberulous on branches, midrib and nerves beneath; drupes smaller c. 2 mm diam, with 1 mm long pedicels.............................. b. var. kalimantanensis