Lagerstroemia pustulata Furtado & Srisuko

9. Lagerstroemia pustulata Furtado & Srisuko View in CoL

Lagerstroemia pustulata Furtado & Srisuko (1969) View in CoL 222,f. 12; Yii (1996) 228. — Type: Muin Chai SAN 26006 (holo SING n.v.; iso K, L, SAN n.v., SAR n.v.), Borneo, Sabah, Lahad Datu .

Tree c. 17 m tall; bark smooth, white. Leaves: petiole c. 1 cm long; lamina glabrous on both surfaces, elliptic, 12–17 cm long; lateral veins 10–12 on each side; intercostal venation scalari- form. Inflorescences terminal, lax, to 35 cm long, moderatelyflowered, minutely hairy, glabrescent. Flowers: bud ± obovoid, finely hairy, c. 12 mm long, c. 7 mm diam, nipple and sutures of calyx lobes in bud not seen; pseudopedicel 5–7 mm long; calyx tube 5–7 mm long, 6-ridged, the ridges slightly winged and somewhat decurrent into the pseudopedicel; calyx lobes (sepals) 6, long-triangular, erect, 5–6 mm long, constricted (in-curved) in the basal part, sparsely hairy within, margin ± thickened; petals elliptic, 15–20 mm long (including 5–10 mm long claw); stamens numerous, subequal; ovary glabrous, ovate. Capsules oblong or subglobose, 20–25 mm long, c. 2 mm beaked at apex, shagreen; fruiting calyx 6-ridged, ridges somewhat winged and decurrent into the 8–10 mm long fruiting pseudopedicel; calyx lobes 5–8 mm long, ± glabrous within.

Distribution — Endemic to Borneo ( Sabah (Lahad Datu)), only known from the type.

Notes — 1. Lagerstroemia pustulata is distinguished by e.g. the relatively long calyx lobes (sepals) in flower looking constricted because of retroflexed margins, the long leaves, 12–17 cm, and the large fruit, to 25 mm long.

2. The leaves and flower buds are described ( Furtado & Srisuko 1969) as ‘pustulate’, but we cannot see what is actually meant.