132 



Achradotypus sp., JSTo. 227. 



Small tree, 18 inch girth and 50 feet high. 



Leaves. — Simple, alternate; petiole, 1 to 2 inches; 

 blade, 31 to 9 x 2 to 2 J inches; oblanceolate tc 

 lanceolate, acuminate, more or less coriaceous, 

 glabrous. 



flowers. — Cauliflory, single, sessile white flowers 

 arising from buds on the trunk of the tree. The 

 floral areas form excrescences on the bole, pro- 

 jecting 3 inches, and having a diameter of 8 



inches. 



These excrescences are covered with 



sessile flowers. 



Fruit. — Very dark green, almost black, smooth, 

 3^ inches long by 2 inches diameter. Generally 

 3 to 4 to each floral area. Contains nut 2 j x li 

 inches. Boat shaped. Lower part smooth, shiny, 

 grey, streaked, and speckled with brown. Upper 

 part rough, yellow-grey. 



Bark. — Grey, brown pustular. Inner bark streaked 



with yellow. Exudes latex. 



Wood. — Sap undefined; a red brown. 



Bays. — 300, red, brown; straight, broken by pores, 

 shallow, show up as faint lines on quarter. 

 Pores. — Clear, 4,000 to 5,000, in short, sinuous, 

 generally radially septate (2 to 5). Soft tis- 

 sue. — Very fine lines, finer than rays, connect 

 latter; irregularly spaced, about 300 to the inch. 

 General. — A pink, brown timber of a heavy con- 

 structional type. Solution wood; very pale pink; 

 very faint green precipitate; cuts hard. 54 lb. 

 per cubic foot. 



Locality .-^-Embi, in Hydrographer range. 

 Date. — Flowering and fruiting in August. 



Xative names. — Saruka (Embi), Jaruka (Buna). 

 Remarks. — This little tree is the most feared 



sorcerer's tree in the northern division. 



It 



appearance with the black fruit standing out 

 at right angles to the stem is certainly remark- 

 able, and may possibly be the cause of its choice 

 for sorcery purposes. So feared is it that I was 



unable to get my boys to touch, far less carry, the 

 specimens I collected, and it took some tact and 

 some ingenuity to get away with them. The 



yield of latex is abundant, and it coagulates 

 well, so may be worth further investigation. 



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



wood. 



Paj/cna sp., Nk>. 204. 



Very large tree, girth, at 7 feet from ground, 8J 

 feet; bole, 135 feet, and 170 feet over all; crown 

 spread, 90 feet; mid girth, 7^ feet; spur roots 

 spread out 7 feet from the butt, and ascend to 6 

 feet. They are not true buttresses, however. 



Leaves. — Simple, alternate; petiole, ^ to f inches; 

 • blade, 1^ to If x 2 J to 2| inches; obovate. 



notched, 



margin recurved, midrib vers 



C 7 u 



_ _ promi- 



nent below, coriaceous, dark green, shiny above, 

 pale green below. 

 Flowers. — Terminal in 



groups 



to 9 on 



a 



peduncle 5-1 6th inch long. 

 Fruit. — Only immature seen. 



Bark. — | inch thick, red-brown, scaly, pustular; 

 the scales in parts small, irregular, 4 inches 

 across; elsewhere on the same bole in longi- 

 tudinal patches, 2 feet x 3 inches; inner bark 

 cream, streaked with yellow; exudes latex. Solu- 

 tion colourless; no precipitate. 



Wood. — Sap undefined, starts yellow and deepens 

 to a rose brown. 



Jiays. — 300 to 330, yellow, sinuous around pores; 

 1-1 00th inch deep, minute specks on quarter. 



Pores. — Clear, 800 to 3,500 in almost non-porous 

 and very porous zones, more often septate 2 to 3 

 than single; filled with sparkling deposit. Soft 

 tissue. — Conspicuous; wavy, concentric, more or 

 less continuous lines about as fine as rays. The 

 waviness is very marked. General. — A yellow- 

 brown wood, with a straight clear grain. Solu- 

 tion wood: colourless; no precipitate; cuts hard; 

 44 lb. per cubic foot. 



Locality. — Sageri, Northern Division. 



Date. — August. 



Native name. — Gne-gne. 



Remarks. — A noble tree, but rare. The leaves are 

 said to be used for making a red dye to stain the 

 tappi cloth so affected in this division. 



Material collected. — Leaves, flowers, immature 

 fruit, bark, wood. 



Sideroxyhm novoguineense K. Sch., No. 386. 



A large tree, 8^ feet in girth, 60 feet of bole, and 

 80 feet over all. Slightly spur-rooted. 



Leaves. — Simple, alternate; petiole, f to ^ inch; 

 blade, 2| to 5 x 2 to 3 inches ; oval to obovate, 



obtuse, margin slightly recurved, and whole 

 blade slightly closed; midrib and veins pale 

 yellow, prominent ; coriaceous ; exudes latex. 

 Bark. — \ inch thick, grey, longitudinally lined to 

 ridged, pustular; exudes latex; inner bark 

 streaked pink and white. Solution colourless; 

 faint precipitate. 

 Wood. — Sap undefined, pale yellow. * ' 



Rays. — 600 to the inch, vey fine, but light colour; 

 about l-40th inch deep, but not very plain on 



Pores. — Small, 



quarter. 



but 



twee 11 



5,000 



and 



6,000 



to 



conspicuous, 

 the square inch 



be- 

 in 



square 



snake-like radial chains, septate, but hard to say 

 how many are so, and how many are linked 

 single pores. Soft tissue. — Links up rays by 

 wavy minute white lines set very close together. 

 General. — Colour, when green yellow, and when 

 dry blue green ; shows little grain. Solution 



wood; colourless; no precipitate. 50 lb. per 



cubic foot. 

 Locality. — Mount Obree to Laruni Spur; 7,000 to 



8,000 feet. 

 Date.— February, 1923. 



Native name; — Suoro (Laruni). 



Remarks. — A hard, straight-grained timber. 



Material collected. — Leaves, bark, wood. 



■ 



Sideroxylon anteridiferwn White & Francis ined., Ho. 



161. 



Large tree, 8 feet girth, with a 70 feet bole. 

 Heavily buttressed. 



Leaves. — Simple, alternate; petiole, 2 to 2^ inches; 



blade, up to 16 x 7 inches; obviate, acuminate; 



lower 

 green. 

 Flowers. 



surface copper coloured; upper, shiny 

 Exudes latex from veins and midribs. 

 •In axillary clusters of sessile flowers. 



Rays. — 180; white; wavy and sinuous, less than 



100th inch deep; makes the quarter grain 

 shiny. Pores. — Conspicuous. 1,500 to 3,000 in 

 septate chains between the rays (2 to 7) ; filled 

 with yellow deposit. Soft tissue. — Thin, wavy, 



more or less continuous lines cross the rays, and 

 pass along septa of pores. About 9 to the inch, 

 but spacing is not regular. General. — A white 

 wood streaked with yellow pore lines. Solution 



wood: colourless; no precipitate, 

 lb. per cubic foot. 



Cuts firm 



36 



Bark. 



1 

 4 



per 

 inch 



thick. Mottled green and brown. 

 Slightly pustular, otherwise smooth. Exudes 

 latex. Inner bark salmon streaked with pale 

 yellow. Solution faint yellow; green precipitate. 



