IS EUCALYPTUS VARIABLE ? 321 



5. Stringybark Group — This includes a number of fissile 

 timbers that pass into each other and may be sub-divided 

 as follows : — 



(a) True Stringybarks — Examples, eugenioides, macror- 

 rhyncha, capitellata, obliqua, Baileyana. 



(b) Blackbutts — Examples, pilularis, (which absolutely 

 connects with the Stringybarks through its variety 

 Mueller land), acmenioides. The most valuable timbers of 

 the" group. 



(c) Peppermints — Examples, amygdalina, regnans, dives, 

 piperita; these timbers have gum- veins and are altogether 

 inferior in quality. 



Allied to these is the — 



6. Mountain Ash Group — Fissile timbers usually pale in 

 colour, and with bark not so fibrous as the preceding. 

 Examples, Sieberiana, Planchoniana, virgata, and its 

 varieties Risdoni, cordata. 



7. Tallow-iuood and Spotted Gum — E. microcorys and 

 E. maculata, two valuable pale coloured timbers, sui- 

 generis. 



8. Bloodivoods — These have gum-veins and are coarse 

 grained ; corymbosa is red, and eximia and trachyphloia, 

 which are pale, connect with maculata. 



9. Jar rah Group — Containing a number of heterogeneous 

 species, and which I name after the best known member. 

 Some have fibrous barks, others are smooth, but they are 

 all deep-red, durable timbers. Examples, marginata. 

 resinifera, diversicolor, propinqua, punctata, saligna, 

 botryoides, robusta, tereticornis, rostrata, longifoUa. This 

 group connects with the Red Boxes. 



The timber of the same species varies a good deal accord- 

 ing to soil and situation, and our knowledge does not yet 

 enable us to discriminate between some timbers not closely 



L T — Dec. 3, 1902. 



