Flora of Papua New Guinea 
Lae National Herbarium 
10086 Cyperaceae 
Cyperus cephalotes Vahl 
East Sepik Province, vicinity of Langu village, alluvial forest on 
flood plain of the Sanchi tributary, Sepik River, elev. s40 m, near 4° 
11’ S, 142° 44’ E. 
with 10084; erect herb growing from floating Salvinia mats, 
common, stoloniferous; leaves rosulate about the scape, linear, c. 3 
mm wide, smooth becoming scabridulous near the summit; 
flowering stalk 20 cm long, triquetrous, smooth throughout; 
involucral bracts foliaceous, 3, manifestly unequal, all vegetative 
parts grass green; inflorescence congested, capituliform, bearing 
many spikes 5-9 mm long, the individual spikes ovate, sessile, brown; 
nuts angulate, a flat face against the rachilla, noticeably corky at 
the base (using lens), style subentire, not 3-fid. 
Waskuk name not recorded. 
coll: W. Takeuchi 10086 
date: August 18, 1994 
det. WT 
Flora of Papua New Guinea 
Lae National Herbarium 
1 0087 Cyperaceae 
Hypoletrum nemorum (Vahl) Spreng. 
East Sepik Province, vicinity of Langu village, alluvial forest on flood 
plain of the Sanchi tributary, Sepik River, elev. 540 m, near 4° 11’ S, 
142° 44’ E. 
near 10084; clumped herb on exposed flats, robust, to slightly >1.2 
m height; leaves rosulate, 3-ranked, ascending, papery, pale green, 
plicate with scabrid margins; blades linear, attenuate at the apex, to 
3.5 cm width; flowering stalk trigonous, smooth, foliaceous bracts 
arising singly at intervals, the bracts unequal, acroscopically 
diminishing; infructescence terminal, paniculiform, entirely pale 
green, all axes spreading, bracteate at their base, scabridulous; nuts 
glomerate in subglobose clusters, ovate and biconvex, smooth, 
crustaceous, crowned by the stigmatic remnant (no. of stigmas not 
determinable on specimen), each fruit apparently with 2 hypogynous 
scales, the scales scarious, much shorter than the nut. 
Waskuk name not recorded. 
coll: W. Takeuchi 10087 
date: August 18, 1994 
det. WT 
