Livistona decora (W. Bull) Dowe

국표에는 없다.

Australia, endemic. Queensland. From Magnetic Is. near Townsville, south to Tewantin and Rainbow Beach. 

Most common in coastal and near-coastal lowlands in large dense colonies or in scattered groups, in open forest, littoral rainforest and dry rainforest at low to moderate elevations, and with isolated inland populations at moderate elevations associated with permanent springs or seasonal streams, 0-550 m. alt. (Dowe, J.L.)/Palmweb.

Livistona decipiens grows along the edges of forests, in the protection of gullies and in swamps close to the ocean.

Description

"Leaflets on the fronds are very thin and ribbon-like giving this palm a unique, almost weeping appearance. Old petioles eventually fall exposing attractive rings remaining from the old petiole bases."

Functionally dioecious palm. Trunk to 18 m tall, 25-30 cm. in diam. breast high, leaf scars narrow, internodes broad to 30 cm. wide, smooth, brown in newly exposed parts, grey with age, with shallow vertical fissures, petiole stubs frequently retained at the base of the trunk. Leaves 30-60 in a ± globose crown; petiole 150-280 cm. long, 18-24 mm. wide, adaxially flat or slightly concave, green throughout, margins with single curved black spines to 20 mm. long in the proximal portion; leaf-base fibres moderately prominent, coarse, disintegrating; lamina costapalmate, regularly segmented, ± circular in outline, 120-185 cm. long, coriaceous, adaxially bright green, abaxially lighter green, segments extended along the costa; lamina divided for 82- 88% of its length, with 70-84 segments, depth of apical cleft 44-54% of the segment length, apical lobes pendulous; parallel veins 6-7 each side of midrib; transverse veins thinner than parallel veins. Inflorescences unbranched at the base, not sexually dimorphic, 100-350 cm. long, not extending beyond the limit of the crown, branched to 4 orders; 8-13 partial inflorescences; longest partial inflorescence to 110 cm., each with a single rachis bract; prophyll 37 cm. long, 11-16 cm. wide, woody; peduncular bract(s) lacking; rachis bracts glabrous to sparsely papillate; primary rachis bract loosely sheathing, apically fibrous-lacerate, bracts subtending partial inflorescence branches basally tubular, becoming winged distally, apex pointed; in the most distal partial inflorescence there are 2 vestigial bracts at the base; peduncle more or less terete, 6 cm. wide at the base, glabrous; rachillae 5-20 mm. long, papillose. Flowers solitary or in clusters of 2-6, funnel-shaped, 1.5-2 mm. long, yellow; sepals ovate-triangular, about 1.3 mm. long, membranous, obtuse; petals broadly ovate, 1.5-1.8 mm. long, fleshy, obtuse; stamens about 1.5 mm. long. Fruit globose, 12-18 mm. in diam., shiny black; epicarp with scattered lenticellular pores; suture line extends about ½ length of fruit; mesocarp 1-3 mm. thick, spongy, moist, fibres aggregated toward the endocarp; endocarp thin, brittle; pedicel to 2 mm. long; Seed globose, about 10 mm. wide; intrusion ½-¾ across endosperm. Eophyll 5-ribbed. (Dowe, J.L.)/Palmweb. Editing by edric.

Livistona decora - Palmpedia - Palm Grower's Guide