Flora of Papua New Guinea 
Conservation International New Ireland RAP Survey 
10027 Myrsinaceae 
Tapeinosperma commutatum Sleumer 
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 on forest 
border; branchlets pithy, stout, cylindrical, lenticellate; leaves 
conferted, slightly fleshy, glabrous, glandular-punctate, adaxially shiny 
yellow-green, sub-bullate, abaxially concolorous; blades linear-elliptic, 
typical 22.5 x 7 cm, apex obtuse, margin entire, base acute; petiole 1- 
1.5 cm, flattened above; laterals 12-18 irregular pairs, not closed, 
reticulum obscure, main veins embossed above, below with only the 
midrib prominent; inflorescence among the leaves, paniculiform, to ca 
9 cm, peduncled, floriferous portion pyramidal, all parts puberulent; 
flowers bisexual, ovoid in bud, crowded, pentamerous; calyx cleft 
nearly to the base, reddish-green, lobes ovate, shortly hairy, glandular; 
corolla connate at the base, petals imbricate, off-white to pink, 
glabrous; stamens oppositipetalous, subsessile, glabrous; ovary 
superior, crowned by a simple terete style, both style and ovary 
puberulent, stigma slightly expanded or punctiform. 
flower buds bottled 
coll: W. Takeuchi & J. Wiakabu 10027 
date: January 1994 
det.: WT 
Flora of Papua New Guinea 
Conservation International New Ireland RAP Survey 
10028 Arecaceae/Palmae 
Ptychosperma sp. 
cf. 9894 
New Ireland; near the junction of the Niagara and Weitin River (site 2); 
mature lowland rainforest, in and around transect 1; elev. 240 m, 
centered on coordinates 152 deg 56’ 242” E x 4 deg. 30.210’ S. 
with coll sequence starting Archidendron 9904; 5-10 m subcanopy 
palm, occasional; stem slender and polelike; leaves coriaceous, 
adaxially shiny dark green, abaxially medium green, 190 cm long, base 
sheathing; developing infructescence paniculiform; cymba green; fruits 
whitish-green. 
coll: W. Takeuchi & J. Wiakabu 10028 
date: January 1994 
det.: WT 
