BY J. H. MAIDEN. 607 



note that E. microcorys is not placed by Bentham in the Renan- 

 therse, but in a group called by him Heterostemones, in which he 

 includes an additional member .of Baron Mueller's Renantherse, 

 the other members falling in the Baron's Porantherse. 



The author has proved by experiments on many samples that 

 a Kino of one species, no matter what its variety, and under 

 whatever circumstances of climate, soil, &c., it may grow, 

 invariably belongs to one group.* For example, all the Kinos 

 of perhaps twelve specimens of eight varieties of E. amygdalina 

 Kino which have passed through his hands belong to the Ruby 

 group, and not one to either the Gummy or the Turbid group. 

 The composition of all Kinos appears to be constant to that 

 extent. Since this discovery dawned upon the writer, he has 

 had many opportunities of verifying its truth ; in some notable 

 instances where Kino has been forwarded to him, he has been 

 able to call the naming of the species in question, and by 

 assigning the group to which it belongs has thrown light upon 

 its position, and has caused the evidence on which a species- 

 name had been given to be re-opened, with the result, in each 

 case, of alteration. He therefore does not hesitate to strongly 

 recommend that in sending specimens of little known or variable 

 Eucalypts to be named, the Kino, wherever procurable, should 

 always form portion of the material for the botanist to work 

 upon. 



The author offers his chemical system of grouping Eucalypts 

 merely as a supplement to, or a check upon, the anthereal 



* In the amplified anthereal grouping of Bentham, the following species 

 are placed by him in more than one series or sub-series : — 



E. virgata ( SieberianaJ . 



E. bicolor flargiflorens ) . 



E. stricta. 



E. albens (hemiphloiaj. 



E. siderophloia. 



E. gomphoceiihala. 

 At the same time, it is but fair to point out that in Baron Mueller's 

 anthereal classification no Eucalypt appears in more than one group, of 

 which, however, there are but three for the whole genus . 



