Flora of Papua New Guinea 
Conservation International New Ireland RAP Survey 
10011 Rutaceae 
Micromelum minutum (Forst. f.) W. & A. 
New Ireland, near the junction of the Niagara and Weitin Rivers (site 
2), mature lowland rainforest in and around transect 1, elev. 240 m, 
near 4° 30.210' S, 152° 56’ 242” E. 
with coll sequence starting Archidendron 9904; small shrub on margin 
of Weitin streambed; branchlets subterete, puberulent; leaves 
alternate, pinnately compound, puberulent on most parts, punctulate, 
herbaceous, adaxially dark dull green, abaxially lighter green; leaflets 
alternate, lanceolate, to ca 11.25 x 5.75 cm, apex acuminate, margin 
repand to subentire, base rounded or oblique, leaf axes not swollen; 
inflorescence terminal, usually from short lateral branchlets, 
paniculiform, puberulent throughout, pedunculate; fruits ellipsoid, 
exocarp red with short patent hairs. 
coll: W. Takeuchi & J. Wiakabu 10011 
date: January 1994 
det.: WT 
Flora of Papua New Guinea 
Conservation International New Ireland RAP Survey 
10012 Urticaceae 
Pipturus argenteus (Forst. f.) Wedd. 
New Ireland, near the junction of the Niagara and Weitin Rivers (site 2), 
mature lowland rainforest in and around transect 1, elev. 240 m, near 
4° 30.210’ S, 152° 56’ 242” E. 
with coll sequence starting Archidendron 9904; 3-4 m shrub in 
regrowth along abandoned track, branchlets sulcate, hairs short and 
patent, non-stinging; leaves alternate, spiral, caducously stipulate, 
papery, adaxially dark dull green, rugose, strigulose, abaxially 
glaucous, hairs spreading; blades ovate, typical 28 x 22 cm, apex 
acuminate, margin toothed or subentire, base cordate; petiole to ca 15 
cm, not swollen at either end, hairs short; venation palmately triveined, 
penninerval from each main vein, intercostals conspicuous; 
inflorescence axillary, paniculate, ca 8 cm long, pedunculate, all axes 
hairy; flowers unisexual, (sp. dioecious), the female flowers clustered in 
heads scattered on the rachides. 
coll: W. Takeuchi & J. Wiakabu 10012 
date: January 1994 
det.: WT 
