106 





at some of the axilla of tertiary veins; upper 

 Burface glabrous, lower downy. Stem covered 

 with scars of fallen leaves. 



Material collected.— Leaves, also fruit in formalin 

 and some oil, wood, bark, and flowers. 



On panicles up to 1 foot long. A small Dracontomelum mangiferum, Blame, Nos. 1 and 613. 



A large tree, 10 feet girth, 80 feet bole, and 120 

 feet over all. Yery large and wide-spreading 

 buttresses. Probably the most heavily but- 



Fruit — 



green drupe. 



Hark. — Grey and brown. Scaly; scales shed in 

 small more or less round patches, leaving bole 

 crocodile-skinned. Inner bark speckled yellow 

 and orange. 



Wood. — Yellow. Sap undefined. Axes firmly. 



Locality.— Abunti ; (Middle Sepik), Hills 400 to 

 600 feet. 



Date.— 14th July. 



Native name. — 3d a bung (Lavongai). 



Remarks: — Said to be used for canoes. Wood and 

 bark have a turnip smell. Later, in Lavongai, I 

 found this growing with a bole of 90 feet. 



Material collected. — Leaves, fruit, wood, bark. 



AN At ARDIACEAE. 



Campnospermum brevipetiolata, Vilkns, Nos. 202, 



785, 799 ; Dracontomelum mangiferum, Nos. 1, 

 613; Dracontomelum sp., Nos. 51, 335; Mangi- 

 fera minor, Nos. 41, 170, 619; rieiogynium sol- 

 andri, No. 125; Rhus sinarubafolia, ISTo. 374; 

 Semecarpus australiensis, No. 93; Semecarpus 

 sp., Nos. 144, 525; Spondias dulcis Forst f., Nos. 



809. Pentaspodon Motleyi, No. 304. 



301, 32S 



Campnospermum brevipetiolata Vilkns, Nos. 202, 785, 



799. 



A large tree, 10 feet in girth; with a heavily but- 

 tressed (up to 8 feet) bole of 80 feet. 

 Leaves. — Crowded at the end of branches. 



Simple 



auricled ; 22 x 7 

 inches; oblanceolate: more or less 



in false whorls: sub-sessile 



coriaceous ■ 



obtuse; stiff; midrib and veins yellow, and very 

 prominent below; glabrous. Juvenile leaves 



are copper-tinted below; older ones are slightly 

 glaucous. 



Fruit. — Bonn 1 on axillary; rusty tomentose panicles 

 up to 15 inches long. A round, purple drupe, 

 containing flattened ovoid green seed, 



Kays. — 210; brown; sinuous; 1-S0th inch deep; 

 show up as fine lines and oblongs on quarter. 

 Pores. — 18,000, very evenly crushed into the 

 available space. Single and radially septate. (2). 

 Soft tissue. — Absent. General. — A white or yel- 

 low wood that turns a mauve-brown when dry. 

 Light straight grained, much in demand for 

 canoes in Northern Division. Solution wood, 

 colourless; slight discoloured precipitate. Cuts 



soft and firm; 41 lb. per cubic foot. 

 Bark. — One-quarter inch 



cately scaly, scales papery. Inner bark streaked 



thick; pustular; deli- 



cream and yellow; exudes a very sparse white 

 sap from cambium layer. 



Wood. — Sap undefined; cream to pinky yellow. 

 Locality. — Onitatandi. 



Date.*— July, 1922. 



Native names. — Siruga (Buna), Siluya (Onita- 

 tandi), Kwata (JUarienberg), Singawa 

 (Rabaul). 



Remarks.' — The wood of this tree yields a clear yel- 

 low oil, which is used by the Sepik native for 

 the same purpose as eoeo-nut oil. Two trans- 

 versal cuts 2 feet apart are made in the trunk 

 and a groove is cut connecting tliem. A gutter- 

 ing and receptacle combined is made of a bam- 

 boo joint and fastened at lower end of grove. 

 Over the which to exclude rain is arranged the 

 spathe of a palm. Ii takes two "months to fill 

 a bamboo joint. 



tressed tree in Papua. The 



girth 



is 



rela- 



tively speaking, small above the buttresses, and 



gives the tree an unbalanced appearance. 



Leaves. — Compound, alternate. Stalk 3 inches to 

 4 inches; leaflets alternate, about twelve; petiole, 



> 



inch; blade, 2^ to 6 inches x 1 to 2 inches, 



asymmetrical; entire; acuminate; thin; glab- 

 rous. Glands at axil of some of the veins. The 

 shape of the leaf is very variable; some are 

 plainly ovate and show no asymmetry. 



Bark. — One-quarter inch thick ; dappled brown 

 and olive; scaly but decorticates in- small irre- 

 gular patches, leaving the surface fairly smooth; 

 immediately below the outer bark the colour is 

 bright green; the inner bark is pale yellow. 

 Solution colourless; slight precipitate. 



Wood. — Sap 4 inches, pale yellow; heart a 

 walnut brown, with a pretty figure. 



200 to the inch, inconspicuous, very 

 walnut flash on quarter. Pores. 



good 



shal- 

 Con- 



luiys.— 

 low ; 



spicuous, 500 to square inch; scattered regularly 

 over the section in radially septate (2); contain 

 dark deposit. Soft tissue. — Absent. General. — 

 Walnut 



Solu- 



sUghtb , 



grain caused by concentric bands of 

 dark and light brown wood; hard to cut. 

 tion colourless; bark does not react; wood does 



weighs 47 lb. per cubic foot. 



Locality. — Material collected near Yeimauri 

 Creek. This species is to be found growing all 

 round Papua and New Guinea in the lowlands. 



Date.— May, 1922. 



Native names. — Damoni (Motu), Ononiba (Binen- 

 dele), Aua (Vailala), Dorea (Evara AY.). 



Remarks. — A sound straight-grained hardwood, 

 with a walnut colour and figure. It has been 

 sold as walnut by the Manu Manu Mill. 



"Material collected.— 



fiowei 



Leaves, wood, bark, fruit and 



■s. 



Dracontomelum sp., Nos. 51, 335. 



A large tree, average dimensions 7-J feet girth x 

 35 feet of clean bole and 110 feet over all. 

 Specimens up to 10 feet girth and 70 feet bole 

 are to be met with, but are rare. Heavily butt- 

 ressed. Buttresses spreading out 6 feet and 

 ascending to 12 feet. 



Leaves. — Compound, alternate, stalk up to 2 feet 



leaflets alternate to sub-opposite, sub- 



long, 



sessile, lanceolate, usually second and third 



pair are sub-opposite. Blade, 3 to 8 inches 



\\ to 3 inches, margin faintly serrate 



x 



entire and slightly wavy, acuminate, 

 pubescent below, puberulous above, thin. 

 Flowers. — Terminal 



or 

 finely 



inches long. 



racemose panicles 4 to 6 



Fruit. — A yellow globose somewhat 



flattened 

 drupe, | inch long and 1 inch diameter. Peri- 

 carp, 3-32nd inch, tough. Mesocarp fleshy, \ to 

 \ inch, thickened at base, containing a hard 

 woody, corrugated, irregular-shaped nut of vari- 

 able size. The cross-section is a spherical tri- 

 angle and it contains two to three seeds, 3-16th 

 inch long. 



Bark. — Light-brown ; scaly. More or less smooth, 

 except where scales still adhere. Apparently de- 

 corticates annually. Surface like a plane tree. 



