OF THE TONGA OR FRIENDLY ISLANDS. 159 
small tree, which has also been collected in the Kermadec 
Islands and in Norfolk Island ; and Mr. Lister’s discovery gives 
the genus a considerable north-eastern extension. Besides 
the New-Zealand species there are two or three undescribed 
ones from New Caledonia, but I am not aware that the genus 
exists in Fiji. Among the Mangroves collected by Mr. Lister 
is a small specimen which Dr. Stapf has identified with the 
American Rhizophora Mangle, a species common on the shores 
of tropical America and also found on the West - African 
coast. I have compared it myself,and I agree with Dr. Stapf 
that it is much more like the American than either of the Old 
World, or eastern species; but it may have been accidentally 
introduced with ballast. With the permission of Mr. Thiselton 
Dyer, the Director of Kew, I am able to show you this and a 
selection of other interesting objects from Polynesia. 
Several of the plants collected in Eua have not been exactly 
matched, but my Kew colleagues and I have not ventured to 
describe many of them because we are unwilling to add unneces- 
sarily to synonymy, and much research would be involved in 
thoroughly working them out. Ardisia Listers and Cyrtandra 
Listeri are inconspicuous species of their genera, but apparently 
quite distinct from anything described. Graptophyllum Sipho- 
nostena had previously been found in Fiji and Samoa, and Dr. 
Stapf has now fully described it. The plant I have doubtingly 
referred to the Monimiaceous genus Hedycarya is in too young 
a condition for satisfactory determination. 
Mr. Lister’s Tongan collection numbers nearly 200 species of 
vascular plants, of which about 100 were not previously repre- 
sented in the Kew Herbarium from those islands; nor are they 
recorded in Seemann’s ‘ Flora Vitiensis’ as being in the British 
Museum. 
Moseley collected 76 species of vascular plants in Tongatabou ; 
and the following enumeration of all the plants collected by Mose- 
ley, Lister, and recorded by Seemann in his ‘Flora Vitiensis,’ 
contains 337 species belonging to 234 genera and 82 natural 
orders. I had not time to work out their distribution in detail 
previous to reading this paper; but Mr. J. F. Jeffrey has re- 
written the Enumeration and collected the details of the distri- 
bution of each species, so far as it could be done at Kew, from 
manuscript lists and published records, and constructed the table 
upon which my remarks, at the end of the Enumeration, on the 
LINN. JOURN.—BOTANY, VOL. XXX. M 
