6. Eucalyptus corymbosa. 



(5m., in Bot. Nov. Holl. 43, and in Trans. Linn. Soc., iii, 287.) 

 Bloodwood. 



Systematic. A tree not easily confounded with other species. It grows 

 very tall. Bark persistent, furrowed, of a reddish colour, fibrous, but not 

 stringy in the sense of the " Stringybarks," as it can be removed in flakes. 

 The tree exudes kino very abundantly, the whole stem being sometimes covered 

 with this reddish blood-like substance, and hence its vernacular name. Leaves 

 lanceolate, slightly falcate, varying in size up to q inches long and 2 inches broad, 

 pale on the underside ; lateral veins very line, and very numerous, only slightly 

 oblique ; intramarginal vein close to the edge. Oil dots not numerous. Peduncles 

 many, mostly terminal, forming a large corymbose panicle. Buds nearly 

 i inch long. Calyx conical, tapering into the pedicel ; ovary flat-topped ; oper- 

 culum hemispherical, shortly acuminate. 



Fruit. More or less urn-shaped;- rim countersunk ; 

 valves hidden below the base of the broad 

 rim ; 7 to 9 lines long, and 5 to 6 lines broad. 



Morphologically the fruits are distinct from any other . 

 species, the large reflected broad rim distinguishing it 

 from its nearest congeners, E. intermedia and E. eximia. 



Habitat. Coast and Dividing Range of New South Wales; 

 Queensland ; just a few trees occurring in the North- 

 east corner of Victoria; North Australia. 



REMARKS. A common tree in the county of Cumberland, N.S.W., and appears never to have had but 

 one common name, i.e., that of " Bloodwood." It attains a height of over 100 feet in favourable .situations, but 

 near the coast (La Perouse) it is stunted in growth. The timber has a deep red fleshy colour, is porous, has 

 numerous gum veins, and is regarded, notwithstanding these latter, as very durable in the ground when split 

 tangentially, or, as bushmen term it, " to the shoulder." The " Bloodwood " (E. intermedia}, R.T.B., of the 

 Clarence and Richmond Rivers and Cambewarra (W.B.), has in the past been confounded with this species. 

 Th2 two, however, are distinct, as they differ in the shape of the fiuits, bark, and timber. Both specimens 

 are easy of determination!. (Vide remarks under E. intermedia.) 



ESSENTIAL OIL. Leaves and terminal branchlets for distiflation were 

 obtained from Gosford, N.S.W., in November, 1896. The yield of oil was very 

 small 365 Ib. of green material giving only 3^ ounces of oil, equal to 0-06 

 per cent. 



The crude oil was of a light lemon colour, and had a turpentine-like odour, 

 with a secondary one distinctly aromatic. The oil consisted largely of pinenc ; 

 phellandrene could not be detected, and but a trace of cineol was present. 

 Aromadendral was indicated by the second fraction having a higher rotation to 

 the left than had the first fraction. The third fraction consisted largely of the 

 sesquiterpene. Crystallised eudesmol was not found. . The crude oil had specific 

 gravity at 15 C. = 0-883 ; optical rotation D - - 8-4 ; refractive index at 

 20 = 1-4838 ; and was not soluble in 10 volumes 80 per cent, alcohol. . 



