356 
PACIFIC SCIENCE, Vol. XI, October, 1957 
New Caledonia 
Norfolk Id. 
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Three Kings 
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160 
165 
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175 180 
Fig. 1 . Map of New Zealand showing places mentioned in text. Inset indicates position of New Caledonia in 
relation to New Zealand. 
tones as the capsules ripen. X. callistemon 
shows a wide diversity in size, leaves reaching 
more than a metre and racemes up to 30 cm. 
in length; on the other hand plants 30 cm. 
tall can bear racemes only 10 cm. long both 
on exposed ridges on the islands and under 
comparable garden conditions. Dimensions 
given for X. moorei are nearer this minimum 
but it is uncertain whether the difference in 
size is at all significant; as a matter of con- 
venience smallish plants and inflorescences 
might have been chosen for sending to her- 
baria. Thus vegetatively the two species would 
be difficult to distinguish from each other, 
and the flowering heads are much alike in 
general appearance. 
Floral structures show good diagnostic 
characters. As Oliver pointed out, the tepals 
of the inner whorl in X. callistemon are nar- 
rower than the outer ones, whereas in X. 
