Lasianthus glaber Ridl.

52. Lasianthus glaber Ridl. View in CoL

Lasianthus glaber Ridl. (1911; nec 1910) 59; (1923a) 155; K.M. Wong (1989) 373, p.p. — Type: Ridley 11486 (14490 in publication) (holo SING; iso K), Peninsular Malaysia, Temengoh .

Shrubs; branchlets terete, sometimes compressed in the youngest part, glabrous, dark-brown when dry. Leaves: blades elliptic, elliptic-lanceolate, thinly coriaceous, 15–18 by 4–5 cm, glabrous on both surfaces, apex cuspidate-acute, base acute, midrib depressed above, prominent beneath, nerves 6 –7 pairs, flat above, prominent beneath, ascending at an angle of 70–80°, curved to the leaf margin, nervules slender, distinct on both surfaces, subparallel; petioles 5 –10 mm long, glabrous. Stipules big, ovate-triangular to triangular-lanceolate, 8 – 9 mm long, 5 mm broad at base, glabrous except the sparsely ciliate margin. Cymes sessile; bracts numerous, glabrous except long-ciliate hairs at the margin, outer ones similar to stipules, ovate-triangular, 7–8 mm long, inner ones smaller, lanceolate. Flowers sessile; calyx campanulate, tube c. 1.5 mm long, glabrous, limb with 5 broadly triangular lobes, glabrous outside, long-ciliate inside and at margin, lobes c. 1 mm long; corolla glabrous outside, tube 6 –7 mm long, lobes 5, oblong, c. 3 mm long. Drupes subglobose, c. 5 mm diam, the base narrowed, with 4–5 obtuse ridges; pyrenes 4–5.

Distribution — Peninsular Malaysia.

Notes — The specimen Ridley 11486 from Temenggo of Perak in SING that has the name L. glaber written on the label in Ridley’s handwriting, is annotated as the type of L. glaber . Although it is not Ridley 14490 in publication, it agrees with Ridley’s description.

This species is similar to L. stipulari s. It differs from L. stipularis by having ovate-lanceolate stipules and ovate-triangular to lanceolate bracts, 7–8 mm long, with hairs at margin. Lasianthus stipulari s has linear to narrowly lanceolate bracts which are villous and up to 1.5 cm long.