+ 
« those of Van Diemen’s Island: and no very large trees of 
‘“‘ this genus were seen either on the south coast or in the 
« gquinoctial part of New Holland. Mr. Caley has ob- 
«served within the limits of the colony of Port Jackson 
«‘ nearly 50 species of Eucalyptus, most of which are dis- 
“ tinguished, and have proper names applied to them, by the 
“‘ native inhabitants, who from differences in the colour, tex- 
“ture, and scaling of the bark, in the ramification and ge- 
« neral appearance of these trees, more readily distinguish 
“ them than botanists have as yet been able to do. . Euca- 
“< lyptus, although so generally spread over the whole of 
« Terra Australis, and so abundant as to form at least four- 
« fifths of its forests, is hardly found beyond this country. I 
“am acquainted with one exception only, in an additional 
« species which is said to be native of Amboyna. 
« Next to Eucalyptus in number, is the beautiful genus 
« MeuaLeuca, of which upwards of 30 Australian species 
<‘ have already been observed, exclusive of TRISTANIA, CALO- 
é mHAMNUS, BEAUFoRTIA, and an unpublished genus which I 
«‘ separate from it. The maximum of Melaleuca ‘exists in 
“the principal parallel, but it declines less towards the 
« south than within the tropic, where its species are chiefly 
© of that section which gradually passes into CALLISTEMON, a 
« genus formed of those species of MerrosIDEROS that have 
-« an inflorescence similar to that of Melaleuca, ‘and distinct 
« elongated filaments. With the exception of 2 species, Mz- 
« paupuca Leucadendron, and M. Cajeputi, the genus Me- 
« Jaleuca appears to be confined to ‘Terra Australis. 
_ & ynprospeéRMuUM, of which neatly 30 Australian species 
« have been observed, exists also in New Zealand and in the 
« Moluccas. In Terra Australis its maximum is decidedly 
‘in the principal parallel, and like Melaleuca, it is much 
« more abundant in the southern regions than within the 
ss¢nopiels sigisbs0 os SOM be ale 
_ Bzxoxta, to which I refer Imsrrcaria of Sir J- Smith, 
« is well as the opposite-leaved Leptospermums, is also an 
« extensive Australian genus, having its maximum in the 
«¢ principal parallel, extending like the two former genera to 
« the highest southern latitude, and hardly existing within 
« the tropic; one species has however ’been found in New 
« Caledonia, as that from which the genus was formed is 
« a pative of China.” ) Te "5 
