Lasianthus scalariformis King & Gamble

110. Lasianthus scalariformis King & Gamble View in CoL

Lasianthus scalariformis King & Gamble (1904) View in CoL 131; Ridl.(1923a) 167; M.R. Hend. (1933) 107; K.M. Wong (1989) 369. — Type: Scortechini 411 (lecto K, designated here), Peninsular Malaysia, Perak; Wray 332 (para, n.v.), Peninsular Malaysia, Perak, 6700 ft.

Shrubs or treelets, up to 4 m high; branchlets terete, c. 2 mm diam, thinly pubescent, dark in colour when dry. Leaves: blades lanceolate-oblong to elliptic-oblong, 10–15 by 2.5 –3.5 cm, coriaceous, glabrous on both surfaces except sparsely pubescent hairs on midrib and nerves beneath, apex acuminate to acute, base acute, midrib and nerves flat to slightly prominent above, strongly prominent beneath, nerves 7– 8 pairs, ascending at an angle of 50–60°, curved to the margin, nervules prominent on both surfaces, densely anastomosing, parallel; petioles 5–10 mm long, pubescent. Stipules triangular, 2– 3 mm long, pubescent. Cymes pedunculate; main peduncles 5 –10 mm long, robust, pubescent or glabrous with 2 branches; branches 2–4 mm long, pubescent or glabrous; bracts minute, subulate, c. 2 mm long, pubescent; bracteoles c. 1 mm long. Flowers sessile; calyx tube obconic, c. 2– 3 mm long, pubescent, lobes 5, oblong or ovate-oblong, 3–4 by 1.5 mm, sparsely hirsute outside, puberulous inside; corolla tubular, 5 – 6 mm long, tomentose outside, lobes 5, triangular-ovate; stamens 5; filaments very short c. 1.2 mm long. Drupes obovoid, 3.5–4 mm diam, gla- brous, 5-ridged, crowned by persistent calyx lobes; pyrenes 5.

Distribution — Peninsular Malaysia, Indonesia (Sumatra).