238 



DESIDERATA. 



The description of no species can be considered entirely satisfactory unless all 

 parts of the plant have been ascertained. There is a good deal of work yet to be done 

 in this direction. This should be systematically followed up, although, owing to the 

 great distances in Australia, we may have to wait a long time for the material. 



Inclusion in the list does not necessarily mean that I have no specimens of the 

 organ asked for,, but that I want better or more characteristic ones than shown in the 

 drawings. 



APPEARANCE OF TREE AND ECOLOGICAL PARTICULARS. 



Attention is invited to the above. Trees deemed to be characteristic should 

 be chosen, and notes made when actually standing in front of the tree. 



BARE. 



At Part L, p. 320, I have recommended combination of study of the bark with 

 that of size and habit of the species, and also of the timber at the same time. See 

 Part LI for the best account of the barks I know, but of some of the species mentioned 

 our knowledge is defective, while of the barks of some we know little or nothing. See 

 remarks under Khytiphloise (p. 41), for example. 



TIMBERS. 



My latest classification of timbers will be found at Part LIU. Of many we know 

 little or nothing, partly because a botanist has usually no opportunity of cutting a 

 piece of timber from a tree from which he has herbarium specimens, and, even if he had, 

 the difficulty of transport often arises. It is also a matter of history that collections 

 of timbers to match herbarium specimens are apt to disappear, and that is why I formed, 

 de novo, the collection of timbers in the Technological Museum, and, later, the collection 

 of smaller pieces in the Botanic Gardens Herbarium and Museum. 



Of the timbers of E. pniiuosa and E. Shirleyi I know nothing ; the latter species 

 has been disentangled from the former, and it is reasonable to suppose that a knowledge 

 of the timbers would make the relations of the two species clearer. These examples 

 are merely illustrative, as I want to emphasise the point that botanists should collect 

 the timbers with bark on just as they do the twigs bearing flowers or fruits. 



