Douglas, Inflorescence development in Carnarvonia 
753 
shoot apex on older growth stems (in which case the leaf had usually fallen). In the 
case of auxotelic systems, vegetative growth continued beyond the axillary 
inflorescence regions in a monopodial fashion. On all anauxotelic systems, axillary 
inflorescences are also present on older growth. 
The number of flowers per axis varies between 2 and 50. Compound branching (up 
to quaternary axes) of the inflorescence is greater in the terminal and near-terminal 
axillary inflorescences than the axillary inflorescences present on the older parts of 
the branch. Any branching axis of more than two flowers also has a flower or 
subunit inflorescence at the base in a bract axil (a-phyll) near the point of insertion. 
Flower numbers and secondary, tertiary and quaternary axis branching are greater 
in the basal metamers of each module and subunit, there being only one flower 
(Figs 3-4), two flowers (Fig. 5) or sometimes three flowers with one at the base of the 
small two-flowered principal axis (Fig. 6) towards the distal end of each inflorescence. 
At the base of insertion of axillary principal inflorescence axes, there is either a small 
inflorescence to one side of the larger inflorescence axis (Figs 1,13) or in some cases 
Fig. 2. Camera lucida drawing illustrating position of auxiliary axillary bud (ax) at base of a first 
order inflorescence branch. 
