ON THE OCCURRENCE OF ABORTIVE STYLES IN 
BUCKINGHAMIA CELSISSIMA 
Fv.M. 
By C. D. Gituiss, M.Sc., and C. T. Waite. 
(Read before the Royal Society of Queensland, 26th May, 
1919). 
(Text-figures 1-2). 
In 1918, Longman and White described an interesting 
mutant in the Proteaceous tree Buckinghamia celsissima 
F.v.M., which is a monotypic species endemic to tropical 
Australia, but on account of its handsome appearance 
it has been introduced into gardens of Southern Queens- 
and. The flowers normally possess a semi-annular 
hypogynous gland situated at the base of the stipes, but 
in the mutant of Longman and White the gland was 
divided into a number of segments and two accessory 
styliform structures accompanied the pistil. This 
condition was observed to be constant in two consecutive 
generations, viz. (a) in a tree at Wooloowin, and (bd) in a 
parent plant at Enoggera. Both of these localities are 
in the Brisbane district within a few miles of each other. 
With the object of investigating the relationships of 
the hypogynous gland and the accessory styliform 
processes to one another, material was obtained from the 
Botanical Museum, Brisbane, off spikes of flowers collected 
in 1918 from the tree at Wooloowin. The specimens had 
been preserved in formalin for over six months, with the 
result that they had become discoloured and hardened, 
so safranin was used for staining. The paraffin method 
was used for embedding and on mounting it was found 
that the cytological detail was poor, this doubtless being 
