BY R. T. BAKER. 



299 



melliodora than perhaps those of any other species. E. paludosa 

 is not so essentially a swamp or wet ground species, as it occa- 

 sionally occurs on dry ground; it also grows a larger tree and is 

 more apt to be straight than this new species; the persistent bark 

 is also quite different and decorticates in long flakes. When 

 young trees of it and E. 2Jaludosa are seen growing in company 

 the two are not likely to be confounded, as the young leaves and 

 bark of each species are quite different. 



Like E. paludosa, it has very probably been classified with E. 

 Gunnii, Hook, f., but it differs from this latter species in leaves, 

 fruits, timber, oil, &c. The colour of the bark and the disposition 

 of the buds bear some resemblance to E. stellulata, but it does 

 not resemble it in any other characters. 



Timber. — The timber is blackish and of very little value, whilst 

 that of E. paludosa is much harder and more durable and of a 

 lighter colour. In botanical sequence it probably follows E. 

 paludosa. Oil glands have been recorded as occurring in many 

 parts of Eucalyptus trees, but it has probably never been found 

 before to occur in the anther connective as in this species. This 

 feature is shown in Plate xxi., fig. 6. 



Oil. — The most important economic product of this tree is its 

 essential oil. On rectification this oil was found to contain a 

 fraction boiling between 280°-290° C, equalHng 18 per cent, of 

 the whole, and which consisted almost entirely of eudesmol, com- 

 paratively in a pure condition. The fraction wholly crystallised 

 in less than one hour. This oil appears to be free from bodies, 

 also of high boiling point, that have previously been found to 

 interfere with and to make the purification of this stearoptene 

 difficult. If eudesmol should be found eventually to be of medicinal 

 value, or useful for other purposes, we have in this oil a most 

 prolific source of the material. 



The average yield of the oil is -398 per cent. It consists of 

 eudesmol, pinene and eucalyptol. No phellandrene was detected. 

 The specific gravity of the crude oil is •9167 at 15° C. 



For the chemistry of this camphor see a forthcoming paper Ijy 

 H. G. Smith, F.C.S., in Proc. Roy. Soc. N.S.W. for 1899. 



