Laccosperma secundiflorum (Laccosperma secundiflorum)
Description
Moderately sized to robust, clustering rattan palm; stem 25–50 m long, 20–25 mm in diameter without sheaths, 30–35 mm in diameter with sheaths, internodes 10–50 cm long. Leaves sturdy, pinnately compound, up to 3.5(–5) m long; sheath dark green, armed with conspicuous brown to greenish sharp spines; ocrea 25–35 cm long and often torn at the margins, armed as sheath; petiole 20–60 cm long, rounded abaxially, concave adaxially, armed with black-tipped spines up to 18 mm long; rachis up to 1.5 m long, armed as petiole, distally prolonged into cirrus up to 2 m long, armed on the underside with black-tipped spines and bearing pairs of acanthophylls (leaflets modified into reflexed hooks) up to 4 cm long; leaflets up to 50 on each side of the rachis, elongate, often sigmoid but sometimes linear to lanceolate in shape, composed of 2–4 folds, 35–45(–60) cm × 2–8 cm, finely acuminate at the apex, dark green, margin armed with black-tipped spines 1–2 mm long. Inflorescence axillary, large, aggregate, branched to 2 orders; rachis branches 25–30 cm long, perpendicular to main axis; rachillae 15–20 cm long, pendulous; peduncle 15–20 cm long. Flowers bisexual, 2(–3) together, greenish white; calyx stalk-like at base, c. 8 mm long, with 3 triangular lobes c. 4.5 mm long; corolla c. 9 mm long, tubular at the base, with 3 valvate lobes; stamens 6; gynoecium 3-carpellate. Fruit ovoid, up to 2 cm × 1.5 cm, with 18–22 vertical rows of scales, reddish. Seed ovoid, 10–12 mm × 8–12 mm × 5–7 mm, often flattened on one side.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum:
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Class: Liliopsida
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Order: Arecales
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Family: Arecaceae
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Genus: Laccosperma
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