ON SOME N.S.W. TAN- SUB STANCES. 25£ 



Particulars of the trees whence they were obtained — Height 



20 to 30 feet, diameter 10 to 18 inches. 

 Collected 9th April, 1887. Analysed 1 1th to 17th November, 



1887. 



Phyliodia obliquely ovate elliptical, more or less recurved falcate, 

 undulate, mostly about J inch long, with a fine, but not pungent 

 point, cuneate at the base, 1 -nerved. (B. Fl.) Each phyllode is 

 softly pubescent. The shrub from which these leaves (phyliodia) 

 were taken, contained abundance of quarter-grown flower-buds. 

 These leaves were scarcely discoloured in drying. Average length 

 15 "45 mm., average breadth 54 mm. Colour of the powdered 

 leaves, sage-green. 



Extract. — They dissolve in water at 100° C. to the extent of 

 40*18 per cent., yielding a solution of a ruby colour (like A. 

 Tnelanoxylon). The extract clogs the filter, making the operation 

 exceptionally difficult.* Colour of moist residue, light brown 

 with a greenish tinge. 



Catechu-tannic acid. — 15 - 18 per cent. 



56. Acacia melanoxylon, K. Br., N.O. Leguminosa3, B. Fl. ii. 5 

 388. Figured Tab. 1659 Curtis' Bot. Mag. 

 Found in all the Colonies except Queensland and Western 



Australia. 

 Vernacular Names — " Blackwood.'' " Lightwood." 

 Locality whence this particular specimen was obtained — 



Monga, near Braid wood. 

 Geological Formation — Granite. 

 Part of the Tree Examined — Leaves. 

 Particulars of the trees whence they were obtained — Height 



40 to 60 feet, diameter 1 foot. 

 Collected 28th September, 1886. Analysed 11th to 17th 



November, 1887. 



These leaves (phyliodia) have lost much of their original 

 greenness in drying, their prevailing colour being brownish. The 

 branchlets contain a few half-opened flower-buds, f Phyliodia 

 falcate-oblong or almost lanceolate, 3 to 4 inches long, the common 

 varieties \ to 1 inch broad, obtuse or rarely almost acute, much, 

 narrowed towards the base, coriaceous, with several longitudinal 

 nerves and numerous anastomosing veins. (B. Fl.) Average 



# A similar observation was made in regard to the bark of this species 

 at p. 89. 



t These were of course removed for the purpose of the experiments 

 See p. 251. 



