ON SOME N.8.W. TAN-SUBSTANCES. 271 



73. Eucalyptus rostrata, Schlecht., N.O. Myrtacere, B. Fl. iii., 

 242. Figured Dec. 4, "Eucalyptographia." 

 Found in all the Colonies except Tasmania. 

 Vernacular Name — " Red Gum." 

 Locality whence these particular specimens were obtained — 



Colombo, near Candelo. 

 Geological Formation — Granite. 

 Part of the Tree Examined — Leaves. 

 Particulars of the trees whence they were obtained — Height 



80 to 100 feet, diameter 2 to 4 feet. 

 Collected 27th June, 1887. Analysed 24th October to 24th 



November, 1887. 



Leaves lanceolar-sickleshaped, of equal colour on both sides ; 

 lateral veins rather subtle, crowded, pinnate-spreading ; the 

 circumferential vein somewhat removed from the edge ; oil-dots 

 scanty or obscured. (Eucalyptographia.) 



Leaves lanceolate, mostly falcate and acuminate, 3 to 6 inches 

 long and even more, the lower ones sometimes ovate or ovate- 

 lanceolate and straight, not thick, the veins rather regular, 

 numerous and oblique, the intramarginal one not close to the edge, 

 or in some desert specimens thick, with the veins much less 

 conspicuous. (JB. Fl.) 



Average length 129 mm., average breadth 14*4 mm. Colour 

 of powdered leaves, pea-green. 



Extract. — They yield 40-8 per cent, to water at 100° C. Colour 

 of extract lemon, of moist residue light ochre, inclining to brown. 



Kino-tannic acid — 6*62 per cent. "The fresh leaves" yielded 

 Mueller and Hummel 4*68 per cent, of tannic acid. (Dec. 4, 

 " Eucalyptographia.) My experiments were as usual, on leaves 

 dried at 100° C. Making suitable allowance for moisture, the 

 Baron's result and my own closely approximate. 



Eucalyptus Stuartiana, F. v M., N.O. Myrtacea 3 , B. Fl., 



iii., 243. Figured Dec. 4, " Eucalyptographia." 

 Found in all the Colonies except Queensland and Western 



Australia. 

 Vernacular Name—" Apple-tree." 

 Locality whence these particular specimens were obtained — ■ 



Quiedong, near Bombala. 

 Geological formation — Limestone. 

 Part of the Tree Examined— -Leaves. 

 Particulars of the trees whence they were obtained — Height 



80 to 100 feet, diameter 3 to 4 feet. 



