UNDESCRIBED DARWINIA AND ITS ESSENTIAL OIL. 181 



ON AN UNDESCRIBED DARWINIA AND ITS 

 ESSENTIAL OIL. 



By R. T. Baker and H. G. Smith. 



With Plates VII and VIII. 



[Read before the. Royal Society of N. 8. Wales, December 6, 1916.'] 



DARWINIA GRANDIFLORA, Sp. IIOV. 



(Syn. D. taxifolia var. grandiflora, Benth.) 



Remarks. 



In a paper read by us before this Society in 1899 we 



state p. 164, inter alia, that "it is intended to raise this 



variety to specific rank when its chemical constituents 



have been investigated." 



At that time its botanical affinities to and specific differ- 

 ences from its congeners, D. taxifolia, A. Ounn., and D. 

 fascicularis, Rudge, were worked out, but we preferred to 

 wait until the oil had been procured and analysed, before 

 specially describing it. 



Several attempts were made from time to time to pro- 

 cure leaves, but it was not until Dr. Oieland informed us 

 of a locality on the Hawkesbury River that sufficient 

 material was procurable for a distillation. 



Even in this case the amount of leaves was not what we 

 could have wished, but sufficient was obtained to give the 

 required data for this paper. 



In botanical sequence it stands between D. taxifolia, A. 

 Cunn., and D. fascicularis, Rudge, having some characters 

 of each and differences from both, and the same remarks 

 apply to the chemistry. 



The flowers have a greater resemblance to those of the 

 latter rather than the former, and the leaves to the former 

 rather than the latter. 



