Chisocheton sarasinorum

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Chisocheton sarasinorum

Description

Pachycaul treelet or small tree to 15 m with open crown. Bark smooth greyish green, inner bark pale brown; wood pale fawn. Leaves to 150 cm, at least 7-jugate, pseudogemmulate, dull adaxially, pale abaxially, in terminal spirals; rachis green, subglabrous to weakly pilose; petiole to 20 cm or more, subglabrous to weakly pilose. Petals (5) 6 in two ranks, white, adhering to tube at base, 3 outer 16–20 by 6 mm, narrowly oblong, obtuse, (2) 3 inner 14–18 mm long, almost linear, obtuse, apices hooded. Staminal tube thick, tough, glabrous to subglabrous without, laxly pilose proximally within, margin truncate to obscurely dentate; anthers 8–10 (11), 2–2.5 mm long, linear, basifixed, included. Ovary 6–8-locular, densely villous; style villous in proximal half; stylehead discoid to stoutly cylindrical. Capsule to 7 cm long, 8 cm diam., flattened globose, 6–8-locular, borne singly or paired on rachis to 20 cm long, 8 mm diam.; pericarp c. 4 mm thick, tough, greenish-brown velutinous, exuding white latex on damage. Seed to 5 cm, like an orange-segment; sarcotesta vascularized.

Distribution

Asia-Tropical: Sulawesi (Sulawesi present), NE Borneo present
Malesia: NE Borneo and Celebes.

Taxonomy

The leaves closely resemble those of Chisocheton ceramicus and sterile material may be readily confused.

Citation

Mabb. 1979 – In: Bull. Brit. Mus. Nat. Hist., Bot.: 356.