Chisocheton crustularii

Primary tabs

Chisocheton crustularii

Description

Pachycaul tree to 8 m; bole to 8 cm diam., sometimes with small rounded buttresses. Bark greyish, narrowly fissured. Leaves to 135 cm long, imparipinnate, to 10-jugate; rachis terete, subglabrous, lateral leaflets opposite to 38 by 10 cm distally, 1.8 by 1 cm and pseudostipulate proximally, the terminal c. 45 by 13.5 cm, narrowly elliptic or oblong, glabrous adaxially, sparsely strigose, especially on venation abaxially, base shortly attenuate to subtruncate, apex acuminate, costae c. 24 on each side, prominent abaxially, tertiary venation conspicuous, somewhat scalariform; petiolules 0–16 mm, swollen. Inflorescence (male only known) 38(–150) cm long, pendent, slender; axis 2–3 mm diam., sericeous, the flowers in fascicles in the distal half; pedicels 2–4.5 mm, recurved, hispid. Petals 5, 16 by 4.5 mm, narrowly oblong, white, appressed pilose without, glabrous within. Staminal tube 14.5 mm long, subglabrous save broad band of adpressed hairs apically without, margin with 11 irregularly bifid lobes c. 3.5 mm long; anthers 11, c. 2 mm long, included, hardly locellate. Fruit unknown.

Distribution

Asia-Tropical, Borneo, known from only two collections from Tinjar, N Sarawak present
Malesia: Borneo, known from only two collections from Tinjar, N Sarawak.