Flora of Papua New Guinea 
Lae National Herbarium 
10201 Rhizophoraceae 
Gynotroches axillaris Bl. 
East Sepik Province, Waskuk Hills, first buttress ridge above the foot 
track between Garuka and Waskuk, territory of the Glei clan; hill forest 
at altimeter elev. 200’ (60 m); near 4 deg. 11’ S lat. x 142 deg. 44’ E 
long. 
with collection sequence 10196-10200; 10-20 m tree; stipules shiny 
green, fugacious; leaves distichous, coriaceous, crenulate, adaxial 
surface dark green x abaxially yellow-green; flowers small, radial, 
bisexual; perianth light green; stamens entirely white; ovary half- 
inferior, yellow. 
Waskuk name not known by villagers interviewed. The wood is useful 
as a building material. 
coll. W. Takeuchi and J. Regalado 10201 
(= Regalado no. 1428) 
date: June 28, 1995 
det.: WT 
Flora of Papua New Guinea 
Lae National Herbarium 
10202 Anacardiaceae 
Semecarpus albicans Laut. 
keys to this result on Ding Hou 
East Sepik Province, Waskuk Hills, first buttress ridge above the foot 
track between Garuka and Waskuk, territory of the Glei clan; hill forest 
at altimeter elev. 400’ (c. 120 m); near 4 deg. 1 T S lat. x 142 deg. 44’ E 
long. 
with collection sequence 10203-10204; 10 m subcanopy tree; bark 
scaly, greyish-brown, exuding a sparse black sap; sapwood white and 
soft; heartwood pale reddish-brown; leaves alternate, coriaceous, 
adaxial surface dark dull green x abaxially glaucous, papillae uniform; 
lamina elliptic, <10 cm long, manifestly reticulate; inflorescence 
paniculiform, lax, rachides obliquely diverging, all axes yellow-green; 
flowers yellow in bud, globose, perianth puberulous; fruits not seen. 
Waskuk name = ‘ko asua.’ The black sap is applied to the skin, 
causing scar tatoos. 
NCI screening code: OFCZ-1020-T, -1021-U, -1022-V, -1023-W, - 
1024-X; corresponding to TWD, TBK, LF+inflorescence, BR, 
RT+RTBK+TBK; 9 herbarium duplicates distributed through NCI. 
coll. W. Takeuchi and J. Regalado 10202 
(= Regalado no. 1429) 
date: June 28, 1995 
det.: WT 
