Arenga engleri Becc., Malesia 3: 184 (1889)

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Distribution

Map uses TDWG level 3 distributions (http://www.nhm.ac.uk/hosted_sites/tdwg/geogrphy.html)
Japanpresent (World Checklist of Arecaceae)B
Nansei-shotopresent (World Checklist of Arecaceae)B
Taiwanpresent (World Checklist of Arecaceae)B

Discussion

Biology And Ecology

Common Name

Description

  • Stems clustered, to 4 m tall, 10-15 cm diameter. Leaves pinnate; sheaths fibrous; ocrea not seen; petioles to 1.8 m long, covered with dark brown, peltate scales; rachis to 3 m long, tomentose as the petiole; pinnae 38-41 per side of rachis, linear, flat adaxially, very briefly lobed along the margins, without ears at the base, regularly arranged and spreading in the same plane except for the basal few pinnae, these paired; middle pinnae 43-49 cm long, 2-2.2 cm wide. Inflorescences interfoliar, unisexual, to 60 cm long, not seen in their entirety; staminate rachillae 9.7-27.6 cm long, 3.6-4 mm diameter, numerous, glabrous; staminate flowers 8-14 mm long, spirally and distantly arranged; sepals 2-2.5 mm long; petals 9-14 mm long; filaments 2-4 mm long; anthers 3-6 mm long; stamens 25-37; pistillate rachillae 27-32 cm long, 5-7.4 mm diameter, glabrous; pistillate flowers spirally and distantly arranged, 3 mm long; sepals 2.5 mm long, broadly imbricate, gibbous; petals 3 mm long, valvate for about two thirds their length; fruits globose, 1.5 cm diameter, orange or red. (Henderson, A.J., A New Species of Arenga (Palmae) in Taiwania 51(4). 2006)A

Materials Examined