270 ON SOME N.S.W. TAN- SUBSTANCES. 



ratlier close to the slightly recurved margin of the leaf ; oil-dots- 

 much concealed or obliterated. (Eucalyptographia.) 



Leaves ovate-lanceolate, nearly straight or the upper ones 

 narrower and falcate, 4 to 6 inches long or sometimes more, with 

 numerous fine but prominent parallel veins almost transverse, the 

 intramarginal one very near or close to the edge. (B. Fl) 



Average length 136*5 mm., average breadth 53*2 mm. Colour 

 of the powdered leaves olive-brown with a slight tinge of blue. 



Extract.— They yield 34*7 per cent, to water at 100° C. Colour 

 of extract light ruby (with slight fiocculent masses owing to 

 presence of mucilage), of moist residue brown, with a slight 

 yellowish tinge. 



Kino-tannic acid — 12 "069 per cent. 



72. Eucalyptus viminalis, Labill., N.O. Myrtacea*, B. Fl. iii., 

 239. Figured in Part 7 of Brown's " Forest Flora of S.A." 

 and Dec. 10, " Eucalyptographia.'' 

 Found in all the colonies except Queensland and Western 



Australia. 

 Vernacular Names — " Manna Gum," " Ribbony Gum." 

 Locality whence these particular specimens were obtained — 



Quiedong, near Bombala. 

 Geological Formation — Limestone. 

 Part of Tree Examined — Leaves. 

 Particulars of the trees whence they were obtained — Height 



60 to 80 feet, diameter 2 to 3 feet. 

 Collected 6th April, 1887. Analysed 24th October to 24th 

 November, 1887. 



Leaves elongate- or falcate-lanceolar, of equal colour on both 

 sides ; lateral veins rather subtle, crowded, pinnately spreading, 

 the circumferential vein somewhat removed from the edge of leaf ; 

 oil-dots mostly concealed. (Eucalyptographia.) 



Leaves lanceolate and more or less falcate and acuminate, 3 to> 

 6 inches long, the veins rather regular, numerous and diverging, 

 the intramarginal one near the edge. (B. Fl.) 



Average length 143*5 mm., average breadth 29*75 mm. Colour 

 of powdered leaves, dark Brunswick green. 



Extract. — They yield 40*59 per cent, to water at 100° C. Colour 

 of extract pale orange ; of moist residue light bronze-green. 



Kino-tannic acid — 3*998 per cent. 



Mueller and Pummel found 3*47 per cent, in leaves of this 

 species. 



For a note on leather made from these leaves, see p. 255. 



