92 



Rays. — Very fine and numerous; unable to count 

 them owing to difficulty of cutting a translucent 

 section. Pores. — Conspicuous; 500; single and 

 radially septate (two to three), rather evenly 

 scattered. Soft tissue. — Absent. General. — A 

 pale timber with a streak here and there of 

 blue or brown, due to discolouration of pores; 

 straight grained, soft and spongy. Solution 

 wood, colourless ; slightly discoloured precipitate. 

 Curs soft and woolly; IS lb. per cubic foot. 



Locality. 



Bark. — | inch brown; scaly. Inner bark yellow. 

 Wood. — Sap undefined; white; pores, distinct; 



rays, invisible. 

 Locality. — Between !Nornu and Naro Rivers. 

 Date. — February, 1923. 



Remarks. — A conspicuous white-flowered tree. 

 Material collected. — Leaves and flowers, bark and 



wood. 



3,000 



to 5,000 feet on Owen Stanley AfzeHa H j ^ 10 



Leguminosak Caesalpinoif'lrae. 



Range. Trail from Kokoda to Gap. 

 Date. — Flowers in August. 

 Native names. — Haiede (Vailala). 

 Remarks. — A hard wood. 



588: Bauhinia Schlechteri, 



Material collected. — L 



bark. 



eaves, flowers, wood, and 



No 



A medium tree 3^ feet girth x 60 feet overall. 



Leaves. — Twice compound, alternate; stalk 9 

 inches. Secondary leaflets opposite, no terminal 

 one; stalk 3| inches. Tertiary leaflets opposite, 



no terminal 



i! 



one; 



acute. 



petiole l-16th inch; blade, 

 inches; asymmetrical, elliptical, soft, 



Flowers. — Terminal and axillary panicles of 



white flowers. 



i 



4 



inch; grey, smooth except for pustules. 



Bark. 



Inner bark yellow. 

 Woot 



Sap undefined; yellow; rays fine; pores 



numerous 



conspicuous. 



Locality.— Iorobaiva; 3,000 to 4,000 feet, in 

 forests of ravines in otherwise grassy hill. 



Date. — February, 



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



1923. 



Serianthc* sp. nr. S. grandiflora, Benth, No. 649. 



A large tree 9 feet x 80 feet x 40 feet bole, wide, 

 branchy, unbuttressed. 



Leaves. — Hi pinnate. 



Flowers. -White, axillary. 



Fruit.— A pod 7 inches long by 3 inches wide. 



Bark.— £ inch thick; grey, ridged, pustular; 

 exudes sticky gum. Inner bark streaked red 

 and white. The bark becomes very hard, indeed, 

 on drying. Solution brown; purple precipitate. 



Wood — Kays. — 140; thin sinuous around, and occa- 

 sionally broken by pores l-120th of an inch deep 

 show up as distinct lines on quarter. Pores. — 

 Conspicuous, 2,100 to 2,500 single and septate 

 radially and diagonally (two to four) show up 

 as brown streaks on longitudinal sections. Soft 



tissue. — Absent. 



General. — A 



loosely-knit 



timber of a pale colour, works easily; weighs 

 40 lb. to cubic foot. Solution. — Tawny, Line 



precipitate. 



Locality.— A mage (Upper Kamu). 



Date.— March, 1924. , 



Native names. — Kerefere (Kohu). 



lie marks, — Handsome shade tree. 

 Materia] collected. — Leaves, flowers. 



Archidenrf ron sp., affin. A. chrysocarpum Laut et K. 



Seh., Xo. 390. 



A medium tree, 5|-in. girth, 50 ft. bole, and 80-ft. 



overall; no buttresses. 

 Leaves. — Bipinnate; petiole, \ inch; blade up to 



12 inches x 4} inches. Qbovate, acuminate, 



glabrous, thin. 



Flowers. — Caulifloral. Heavy panicles of white 

 filamented flowers, arising from old wood, right 

 down to 3 feel from ground on trunk. 





No. 793; Cassia Bartoni, No. 344; Cassia 

 glauca, No* 351; Kingiodendron (Dialium sp.), 

 Nos. 318, 339; Maniltoa sp. nov., 203. Indt., 



782. 



Afzelia bijuga. A Gray. iSi/ti. Intsia amboinensis, 



No. 10. 



» 



A large tree, 8 feet girth, 50 feet bole, and 80 

 feet over all. In certain localities it is but- 

 tressed for a few feet up the bole; in others it 

 has but a slight root swelling. In the swamp 

 lands of the Delta Division it assumes the char- 

 acteristic habit of swamp trees, making distinct 

 prop roots. 



Leaves. — Compound, alternate. Leaflets opposite; 

 petiole ;$; blade 3|x 2 inches to 5 inches x 2| 

 inches; ovate, glabrous, somewhat asymmetrical. 



Bark. — Less than \ inch thick. Light brown 

 Fairly smooth. 



Wood. — Sap up to 5 inches thick, but averaging 



Light yellow. Heart a good red- 



2 inches. 



b 



rown. 



Sapwood from buttress. 

 Rays.— 



150, very fine brown. 



Pores. — Conspicu- 

 out; 900 to 3,000 irregularly scattered large 

 single and radially septate (2-3-4), conspicuous 

 owing to very dark-brown soft tissue surround- 



ing 



each 



tissue. 



pore 

 Distinct. 



and joining up groups. Soft 

 Very dark-brown surrounds 



pores and connects up small groups across rays. 

 Also fine concentric lines two to the inch. 



General. — The 



Solu- 



sap is a grey yellow, 

 tion wood slightly discoloured; faint green pre- 

 cipitate. Hard to cut; weighs 48 lb. per cubic 

 foot. 



Heartwood. 



Rays. — 1,300 to 1,600, brown sinuous around and 

 broken by pores just visible on quarter as very 

 fine lines. Pores. — Conspicuous; 1,700 to 2,700; 

 singly and radially septate (2-3) in thinner and 

 thicker sown zones; immersed in soft tissue 

 about 50 to the square inch; are filled with a 

 yellow deposit. Soft tissue. — (Tear. Surrounds 

 pores and links up small groups. In addition 

 there are 10 to 14 very fine lines of soft tissue to 

 the inch. Where these occur the pores are least 

 thick. General. — A dark red-brown wood with 

 a mahogany grain. Solution wood dark red- 

 brown; heavy blue precipitate. Cuts hard and 

 clean. Weighs 53 lb. per cubic foot. 



Locality. — Collected material on foothills behind 

 Veimauri. It is common all round the Terri- 

 tory up to a few hundred feet above sea-level. 

 In the Delta Division it attains its optimum 

 growth in the swamps; elsewhere the best trees 



I have seen were on hillsides. On the northern 



foothills of the Hydrographer's Range this tree 

 grows with a dipterocarp as sole other tree 

 species. I have not met such an associa- 

 tion elsewhere. 



Date.— May, 1922. 



