Lasianthus rotundatus Stapf

108. Lasianthus rotundatus Stapf View in CoL

Lasianthus rotundatus Stapf (1894) View in CoL 185;Merr.(1921) 578. — Type: Haviland 1141 (holo K), Borneo, 8300 ft.

Shrubs, c. 1 m high; branchlets terete, c. 1.5 mm diam, glabrous, slightly compressed in the youngest part, darkish when dry. Leaves: blades oblong-rounded, subrounded or rounded, 3–6 by 2–4.5 cm, coriaceous, glabrous on both surfaces, apex shortly cuspidate or apiculate, base rounded, blackish when dry, midrib and nerves prominent on both surfaces or slightly depressed above, nerves c. 5 pairs, ascending at an angle of 70–80°, curved to the margin, nervules prominent and distinct on both surfaces, subparallel; petioles 3 –6 mm long, glabrous. Stipules triangular, c. 1 mm long, glabrous or sparsely puberulous. Cymes sessile or subsessile (peduncles less than 2 mm long); bracts absent. Flowers sessile; calyx campanulate, c. 2 mm long, tube c. 1 mm long, glabrous, limb c. 1 mm long, puberulous outside, teeth 4, broadly triangular, c. 0.6 mm long; corolla tube c. 4 mm long, lobes 4, ovate, c. 2.5 mm long; stamens 4; ovary 4-locular. Drupes subglobose, 3–4 mm diam, glabrous; pyrenes 4, smooth on the abaxial face.

Distribution — Endemic to Borneo (Sabah).