Lasianthus pseudo-stipularis Amshoff ex Bakh.f.

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 : 77

100. Lasianthus pseudo-stipularis Amshoff ex Bakh.f.

Lasianthus pseudo­stipularis Amshoff ex Bakh.f. (1963) 64; (1965) 340. —

Type: Winckel 1916ss ( holo L), W Java, Tjadasmalang (SW Tjidadap, Priandgan) , 1000 m alt .

Shrubs, 1–2 m high; branchlets terete, 2– 3 mm diam, glabrous, dark-brown when dry. Leaves: blades oblong to elliptic-oblong or oblong-obovate, 10–15 by 3.5 –5 cm, glabrous on both surfaces, apex cuspidate-acute, base acute, dark-brown when dry, midrib and nerves flat to slightly prominent above, prominent beneath, nerves 7–8 pairs, ascending at an angle of 50–60°, curved to the margin, nervules slightly obscure above, distinct beneath, subparallel; petioles 5 – 8 mm long, glabrous. Stipules ovate to ovate-triangular, 5 –7 by 5 mm, with thinly membranaceous margin, glabrous. Cymes sessile, bracts minute, inconspicuous. Flowers sessile; calyx glabrous, c. 2 mm long, tube obconic, c. 1 mm long, limb shallowly cupular, c. 1 mm long, truncate or obscurely 4–5-toothed; corolla c. 1 cm long, glabrous outside, tube c. 6 mm long, lobes c. 4 mm long, glabrous outside, pilose inside; anthers 5. Drupes turbinateglobose, c. 5 mm long, glabrous, verrucose, 4-ridged; pyrenes 4, verrucose on the abaxial face.

Distribution — Indonesia ( Sumatra, Java).

Note — This species differs from L. stipularis by having cymes without numerous hirsute bracts.