Pinanga mooreana J.Dransf., Kew Bull. 34: 783 (1980)
Named after ?
A small diameter palm, growing with several stems from the base. Leaves very large and pinnately
divided. Fruits in two rows, black, elongate.
Clustering, unarmed, pleonanthic, monoecious palm. Stem with basal suckers forming rather close
clumps; stem robust to 8 m or more tall, to 2.5 cm diam. just above the nodes, to 3.5 cm diam.
just below the nodes, rarely with greater diameter; nodal scars very conspicuous, about 1.5 cm
wide, whole internode to 9 cm long; stem surface dull purplish-brown above, grey-brown below,
in young parts densely covered with chocolate-coloured scales. Crownshaft to 1.25 m long, slightly
swollen, dull purplish-brown. Leaves 6-8 in crown; leaf sheath to 75 cm long, dull purplish-brown,
densely covered with chocolate-coloured scales; leaf without sheath to 3 m long; petiole 35-100 cm,
slightly channelled adaxially, rounded abaxially, c. 1.5 cm in diam., with caducous chocolate-
coloured scales; leaflets to 25 on each side of the rachis, regularly arranged, rather stiff,
diverging from the rachis at an angle of about 60 degrees, mostly 2-ribbed except for occasional
1- or 3-ribbed leaflets, and the apical compound pair; lowermost leaflets to 33 x 2 cm, long-
acuminate; mid lamina leaflets to 65 x 4 cm, very gradually narrowed towards the tip; uppermost
2-3 leaflets on each side with lobed tips corresponding to the major ribs; apical leaflet pair
joined along mid line for about 15 cm of rachis, with lower margin to 33 cm long, and upper margin
to 23 cm long, to 10 cm wide, conspicuously lobed with adaxial splits to 1 cm deep and abaxial
splits to 4 cm deep; lamina dull dark green, coriaceous when fresh, drying dull green-brown, only
slightly paler on abaxial surface, very slightly rugose when dried, glabrous except for very sparse
brown scales along abaxial ribs on abaxial surface. Inflorescence infrafoliar, pendulous; prophyll
not known; peduncle to 5 cm long, flattened, 2 x 0.5 cm wide at the prophyll scar; rachillae 5-8
held +/- in the same plane, the longest to 27 cm long, flattened, 6 x 3 mm in T.S.; triads arranged
distichously, to 10 mm distant with subtending bracts very inconspicuous. Staminate flowers unknown.
Pistillate flower depressed globose; calyx with 3 rounded, imbricate, ciliate-margined lobes to
2.5 mm long, 5 mm wide, joined for c. 0.5 mm at the very base; corolla with 3 rounded, imbricate,
ciliate-margined lobes to 2.25 mm long, 4.5 mm wide; staminodes absent; ovary rounded, about 3 mm
diam., tipped with irregularly lobed and flattened stigma. Half-mature fruit greenish, with black
calyx and corolla, borne on a yellowish-green rachilla, the fruit +/- cylindrical, 15 x 5 mm.
Maturing fruit turning yellowish, then orange, finally deep purplish-black, the rachillae eventually
yellowish to orange. Mature fruit broadly ellipsoid, very slightly curved, to 3 x 1.5 cm, with a
distinct low collar surrounding the apical stigmatic remains; epicarp smooth but not satiny;
endocarp with conspicuous longitudinal fibres; seed adhering to the endocarp, to 2 x 1 cm, attached
basally; endosperm deeply and irregularly ruminate; embryo basal.
Confined to lowland forest. In the G. Mulu National Park it is one of the characteristic features
of alluvial forest; in the Bintulu area, however, it was collected it at the edge of kerangas
forest. This Brunei specimen was growing near the top of a ridge.
Borneo (only Sarawak and Brunei so far).