EUCALYPTUS DIVEESICOLOR. 



Drummond's collections contain this species under Nos. 39 and 59. 



B. diversicolor among West Australian species bears some similarity to B. marginata, but the 

 leaves are still paler beneath, the lid is almost constantly shorter, particularly so in proportion to 

 the tube of the calyx, the anthers are not broader than long and their glandular protuberance is 

 much larger, the fruit is longer in comparison to its width, the valves are also longer and the 

 seeds very much smaller ; besides bark and wood are totally different. 



The Karri-tree cannot in nature be confused with E. patens, the Blackbutt-tree of West- 

 Australia, on account of the greatly persistent and rough bark of the latter, which has besides 

 more curved leaves of almost equal coloration on both sides, the anther-gland very faint, the fruit- 

 rim narrower, the valvular portion of the fruit at first flat and consisting usually of four rarely 

 Ave pieces, the seeds larger. 



What as E. goniantha is mentioned by Bentham from the Frankland-Eiver belongs to 

 B. diversicolor. 



The diametric measurement of the woody fibre, and the proportionate number of the me- 

 dullary rays and vascular tubes, as contrasted with their copiousness in some other kinds of 

 Eucalyptus-woods, is set forth in the following columns, whereby some idea of the relative density 

 of the timber and the closeness of the woody texture may be obtained. 



Measurement of Transverse Sections of the Cells of Woody Fibre (Prosenchyma). 



1. Largest Diameter of Cell. 



Eucalyptus marginata (hard) ... 

 marginata (light, dense) ... 

 marginata (ordinary, soft) 

 diversicolor 

 longicornis 

 calophylla 

 loxophleba 

 salubria 

 comuta 

 rostrata 

 globulus 

 Stuartiana 

 Baileyana 

 Doratoxylon (young) 



2. Thickness of Cellwall. 



Eucalyptus marginata (hard) ... 

 marginata (Ught, dense) ... 

 marginata (ordinary, soft) 

 diversicolor 

 longicornis 

 calophylla 

 loxophleba 

 salubris 

 cornuta 

 rostrata 

 globulus 

 Stuartiana 

 Baileyana 

 Doratoxylon (young) 



Number of Medullary Rays within the space of 1 inch in- 



Eucalyptus marginata (dark hard variety) ... 390 



marginata (light dense variety) ... 260 



marginata (soft variety) ... ... 330 



diversicolor ... ... ... 170 



longicornis ... ... ... 290 



calophyUa 180 



Baileyana ... ... ... 315 



Eucalyptus loxophleba 

 salubris ... 

 cornuta ... 

 rostrata ... 

 globulus ... 

 Stuartiana 

 Doratoxylon (young) 



Number of Vascular Tubes within 1 square inch in the Wood of — 



Eucalyptus marginata (dark hard variety) 

 marginata (light dense variety) 

 marginata (soft variety) 

 diversicolor 

 longicornis 

 calophylla 

 Baileyana 



3,500 

 2,700 

 5,100 

 4,900 

 9,300 

 3,300 

 10,000 



Eucalyptus loxophleba . 

 salubris 

 cornuta 

 rostrata 

 globulus 

 Stuartiana 

 Doratoxylon (young) 



