SOME IRONBARKS OF NEW SOUTH WALES. 417 



ovate, longitudinal slits, and which form a conspicuous 

 feature in a longitudinal section. These fibres are arranged 

 in regular radial rows of varying diameters. The vessels 

 are numerous with or without tyloses, but mostly with, 

 but some contain a deposit; the wood and crystal paren- 

 chyma is sparse, occurring mostly in the vicinity of the 

 vessels, with a few scattered amongst the fibres; ray 

 parenchyma numerous, with a reddish coloured amorphous 

 substance in the cells, which produce the dark lines in the 

 section given; they are nearly all one or two cells wide and 

 a few in height. 



General — It is not easy to place this species in its 

 systematic sequence, as whilst the timber places it near 

 E. siderophloia, the bark, leaves and fruits especially 

 differentiate it from that species, as these features also 

 do from other described species of ironbarks, E. crebra, 

 E. paniculata, E. sideroxylon, E. Caleyi, E. drepanophylla. 



It might be placed between E. siderophloia and the pink 

 ironbark of this paper, E. Nanglei. 



Research has shown that the timber of this tree was 

 exhibited at the Paris International Exhibition of 1862, 

 under the name of E. crebra, but later this name was 

 changed on the specimen to E. paniculata. 



Now that full botanical material, together with the 

 timber specimens has been investigated and a field know- 

 ledge of the tree obtained, characters have been brought 

 to light showing that it differs from all described species, 

 and is here given specific rank under the name of E. Fer- 

 gusoni, in honour of His Excellency Sir Ronald Munro 

 Ferguson, g.c.m.g., Governor General of Australia, who has 

 given the weight of his great forestry knowledge and 

 experience to the furtherance and advancement of forestry 

 in Australia. 



Geographical Range. — Bulladelah and Wingello. 



Aa— November 7, 1917. 



