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PACIFIC SCIENCE, Vol. XVIII, October 1964 
APPENDIX 
Methods of measuring characters shown in 
Figure 4: 
Br. T. — The average number of teeth per 
bracteole, based on counts of 10 bracteoles. 
Br. D . — Bract dissection index: S expressed 
as a percentage of L, where S is the distance 
from bracteole base to base of the sinuses 
on either side of the median tooth, and L 
is the distance from bracteole base to apex 
of median tooth. Measurements averaged 
from three bracteoles each removed from a 
flower in bloom. 
Br. S . — Bract size: The geometric mean of 
bracteole length and bracteole breadth. Av- 
eraged from three bracteoles, each removed 
from a flower in bloom. 
L. I . — Leaf index: S expressed as a percentage 
of L, where S is the distance from leaf 
pulvinus to base of median lobe, and L is 
the distance from leaf pulvinus to apex of 
median lobe. Measurements averaged from 
three climax leaves. 
P. L . — Petal length, measured from claw of 
petal to maximum distance on outer edge. 
Averaged from three fresh petals from 
different flowers. 
S. 1 . — Staminal index: Maximum diameter of 
staminal column expressed as a percentage 
of the length of the column. Measurements 
averaged from three flowers. 
