Entada spiralis Ridl., J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 67: 305. 1898.
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publication ID |
https://dx.doi.org/10.3897/phytokeys.205.76790 |
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persistent identifier |
https://treatment.plazi.org/id/AD0825F1-1F11-5393-A010-602F8F067CFA |
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treatment provided by |
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scientific name |
Entada spiralis Ridl., J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 67: 305. 1898. |
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Entada spiralis Ridl., J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 67: 305. 1898.
Type.
Not specified, though Ridley’s description appears to be based upon plants that are "very common in Singapore … [and] very conspicuous here from its very remarkable fruit." ( Ridley 1898, p. 305).
Description.
Liana more than 25 m long, stem flattened and spirally twisted, 7.5 cm wide × 2.5-5 cm thick. Leaves: rachis 5-9 cm long, tomentose, terminating in a bifurcating tendril; pinnae 2-3 pairs per leaf, 3.6-9.3 cm long with 2-4 pairs of opposite leaflets; leaflets 1.8-6.5 × 0.9-3 cm, obovate to narrowly obovate-elliptic, unequal-sided, apex rounded-truncate, retuse, base rounded to cuneate, asymmetrical, lamina chartaceous, glabrous (Fig. 22A, B View Figure 22 ). Inflorescence: a spike 15-20 cm long, axillary, solitary, tomentose (Fig. 22A, B View Figure 22 ). Flowers: sessile to sub-sessile, staminate or bisexual; calyx cupular, 0.5-1 mm long, glabrous to puberulous; petals white, 2.5-3 mm long; stamen filaments 5-8 mm long, white turning yellow (Fig. 22C View Figure 22 ). Fruit: a large, torulose, spirally coiled craspedium, 120-180 × 6 cm, with transverse septa between seeds dividing the fruit into one-seeded segments which, upon ripening, fall from the persistent replum; segments irregularly triangular; epicarp woody, endocarp chartaceous (Fig. 22D, E View Figure 22 ). Seeds: irregularly compressed and mirroring the fruit segment shape, 6-6.5 × 5 cm × 1.5-1.8 cm, hard, brown, pleurogram lacking.
Distribution.
Peninsular Thailand, peninsular Malaysia, Singapore, Sumatra.
Habitat and ecology.
Primary and secondary rainforest; 0-540 m alt.
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