137 



Bark. — f inch thick; brown pustular longitudi- 

 nally lined. Inner bark cream, streaked with 

 yellow. Solution colourless. No precipitate. 



Wood. — Sap yellow, 1J. Heart a good brown. 



Kays. — 100; yellow, sinuous round, and broken by 

 pores, l-60th inch deep. Contrast rather weil 

 with other and lighter tissue on quarter. Pores. 

 —Clear, 1,500 to 2,500, single and septate. The 

 septum lies at any angle, though more commonly 

 tangential; yet three or four septa uniting at the 

 centre of the pore are common. Soft tissue. 

 Absent. General. — A light straw-coloured tim- 

 ber showing a pretty satin quarter grain. Solu- 

 wood; colourless; no precipitate; cuts firm; 26 

 lb. per cubic foot. 



Locality. — Baroi. 

 Date. — October. 

 Native names.— 



the least porous has only 500. Incrusted with 

 white deposit. Soft tissue.- — Clear; represented 

 by numerous short or discontinuous, concentric, 

 ■ thin wavy lines. The number of these to the 

 inch radius is irregular. General. — A grey- 

 brown, straight-grained wood, full of tannin; 

 solution wood muddy; strong blue precipitate; 

 cuts on the hard side; 34 lb. per cubic foot. 

 Locality. — Veia Creek, alluvial flat- 

 Date.— May, 1922. 



Native name. — Agi. 



Remarks. — A light, moderately hard wood. Rare. 



Mat 



Leaves, wood, bark. 



names. — Ah-ko (Vailala) ; Paio (Evara). 



Remarks. — A softish wood, being used in the con- 

 struction of the saw-mill on the Wami. A verv 

 sound wood. 



Material collected. — Leaves, bark, wood. 



Vitex cofassus R.W., Mos. 91, 145, 590. 



SOLANACEAE. 



Solarium aviculare, Forst., No. 544. 



A small tree, 15 feet high. 



Flowers. — Blue. 



Fruit. — Ellipsoidal; lx| inch; orange. 



Locality. — Nomi River, at 5,000 feet. 



Date.— November, 1923. 



Native name. — Wasim. 



Material collected. — Leaves, flowers, fruit 



N 



ew 



Guin 



ea 



teak. 



'j. 



1 large tree, 8 feet in girth, 



with a grooved gnarled bole up to 70 feet. 

 Leaves.— 



Bigno^aceae. 



Simple, opposite, decussate; petiole, f to DiplanHiera tetraphylla, Ro. 27o. 



inches; blade, 4^ to 7 x -] to 8 inches; lanceo- 

 late, acuminate, glabrous, thin; stem square. 



Bark. — J inch thick, pale brown, slightly papery, 

 more or less smooth; inner bark white streaked 

 with yellow. Solution colourless, faint brown 

 precipitate. 



Wood.- 



brown. 



Sap, 



3 



inch, yellow; heart 



a deep dark 



Rays. — 100, pale yellow; slightly sinuous around 

 pores; very fine. Show up as minute wavy lines 

 on the quarter. Pores. — 5,500 (o 7,000 in less 



and 



more j>orous zones 



single 



and radiallv 



septate (2) ; all very minute. Soft tissue. — Li 



very thin lines, about 10 to the inch. General. 



clear brown timber, with a straight grain 



and a satin figure on the quarter; solution wood 



faint yellow; very dark red-brown precipitate; 



cuts hard; 42 to 46 lb. per cubic foot. 

 Locality. — Suputu, Venapa. 

 Date.— May, 1922; July, 1922. 

 Native names. — Anoano (Doura) ; Tato-o (Buna) ; 



Bai-ah (Vailala) ; Ka-ar (Yabim) ; Afas 



(Yalu) ; Ahsang (Rabaul). 

 Remarks.— 



canoe paddles, but worth attention for all sound 



A hard, dense wood, used for making 



work. 



It might well be called New Guinea teak. 



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

 fruit. 



Vitex sp., INTo. 82. 



A large tree, 11 feet girth and 50 feet bole; medium 

 buttresses, extending as ridges up the bole. 



Leaves. — Compound, opposite; peduncle, 5 inches; 

 palmate; digitate; five leaflets; petiole, ^ to 

 1 inch; blade, | x 2 to 2J inches; lanceolate ; 

 smaller ones obovate; acuminate; glabrous; 



shiny above. 



Bark. — Less than i inch thick, scaly; burnt umber. 

 Inner bark yellow. Solution yellow. Muddy- 

 green precipitate. 



"Wood. — Sap undefined ; pale yellow or white. 



Medium tree, 5^ feet in girth and CO feet high. 



Leaves. — Simple, whorled ; petiole, 1[ to If inch, 

 covered with a felt of yellow hairs; blade, 4\ to 

 8£ x 2\ to 6| inches, broadly obovate, obtuse, 

 coriaceous, glabrous above; felt of yellow hair« 

 below; midrib and veins prominent, yellow be- 

 low; one, two, or three glands at junction with 

 petiole; slightly auricled. 



Flowers. — Erect, terminal compound corymb of 

 pedunculate yellow flowers. The peduncles stand 

 out at right angles or less to the spike, and tiny 

 are crowded together so as to give the appea ranee 

 of umbelles at a distance. Main peduncle stout, 

 1 inch, yellow, pubescent, bearing a flower and 

 two secondary peduncles f inch; each of these in 

 turn bears a single flower and two tertiary pe- 

 duncles § inch, each bearing two braetioles and 

 a flower. 



Bark. — Grey, rough, ridged at base; g inch; inner 

 bark white, streaked with brown. Solution 

 yellow, rale-green precipitate, 



Wood. — -Pale yellow to white. 



Kays. — 220; wavy, not sinuous, but broken by 

 larger pores, 1-G0th inch deep; faint lines on 

 quarter. Pores. — 1,500 to 2,500, in zones of 



less and more porous wood, here and there radi- 

 ally septate, but more often single. Soft tissue. 

 ■ — Fine, broken, short white lines surround and 

 connect up pores; in some cases merely extends 

 in little lines on each side of pore it surrounds. 

 General. — A pale wood, with a straight grain. 

 Solution wood colourless; very pale-green pre- 

 cipitate. Cuts firm; 34 lb. per cubic foot. 



Locality. — Grass patches, at altitude of 1,000 to 

 2,000 feet. 



Date. — August, 



Remarks. — A brittle, soft wood. 



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



G i- > \ KRAC l AE. 



Rays. — 180; yellow. Exceedingly sinuous around, Aeschynanthus discorensis, No. 413; Aeschynanthus 



and very much broken up by pores. Show up 

 as tiny specks on quarter. Tores. — In zones of 

 unequal width and density. The very porou- 

 wood runs up to 5,000 to the square inch, while 



nummularius, No. ?>!>(5; Oyrtandra sp., Nos. 407, 

 569; Cyrtandropsis monoica, No. 415; Dichro 



triclmm Chalmersii, No. 572; Baea lanuginosa, 

 No. 040. 



