Flora of Papua New Guinea 
Lae National Herbarium 
10077 Euphorbiaceae 
Macaranga aleuritoides F. Muell. 
East Sepik Province; vicinity of Langu village; alluvial forest on flood 
plain of the Sanchi tributary, Sepik River; elev. £40 m, near 4° 1 V S, 
142° 44’ E. 
with 10075 et seq.; 5-10 m tree on riverbank, producing red sap when 
cut; branchlets articulate, pruinose, provided with large papery 
stipules to c. 15 cm length, the stipules coarsely hairy; leaves 
alternate, thick papery in texture, shortly pubescent on both surfaces 
when mature, adaxially dark green x abaxially glaucous, the young 
flush floccose on the upper side, tomentulose beneath; mature leaf 
trilobed, typical dimensions 39 cm x 44.5 cm, the 3 lobes conform, 
acute with a short acumen; venation digitate, each of the 3 costae 
penninerved, intercostal nerves parallel, forming a plexus of 
crossbars, main veins embossed or prominulous above, more raised 
below; petiole avg. 36 cm, dorsiventrally compressed, often 
glaucous; infructescence axillary, paniculiform, 20 cm long, 
pedunculate, axes hirsute, capsules trigonous, typical 15 mm x 18 
mm, exocarp distinctly papillose, armed with flexible spiniform 
excrescences. 
Waskuk name- bas.’ The large leaves are used for wrapping saksak; 
the wood is employed in house construction. 
coll: W. Takeuchi 10077 
date: August 18, 1994 
det. WT 
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