OF THE TONGA OR FRIENDLY ISLANDS. 167 
collectors who contributed the material here consolidated are 
about twenty in number. First come the early collections de- 
posited mainly in the British Museum, though some of them are 
also represented in other herbaria. These are by Sir Joseph 
Banks and Dr. D. C. Solander, who accompanied Captain Cook on 
his first voyage in 1768-1771; Dr. J. Reinhold Forster and his son 
George, who were naturalists to Cook’s second voyage, 1772-1775 ; 
and Mr. David Nelson, who was on the third voyage in 1776- 
1780. Some of the specimens in the British Museum are simply 
marked “ Cook,” without any indication of the voyage. Another 
important collection in the British Museum, of which there is 
alsoia set at Kew, was made by George Barclay, on the voyage 
of H.M.S. ‘ Sulphur,’ from 1835-1841. He was primarily a 
colleetor of seeds and living plants for Kew, and his letters to 
W. T. Aiton, the director, and J. Smith, the curator, are preserved 
there. The Tonga plants in the Kew Herbarium include a por- 
tion of the Forsters’ collection ; a few collected by James Macrae, 
who travelled for the Horticultural Society of London, 1824-1826; 
a small number labelled ‘‘ Beechey,”’ who was Captain of H.M.S. 
‘ Blossom,’ 1825-1828; a considerable collection made by Alex- 
ander Mathews, a Chiswick gardener, in 1841; afew by Sir 
Everard Home in 1851; a collection made by the algologist W. 
H. Harvey during his sojourn in the southern hemisphere, 1854 
to 1856; a collection made by Dr. Greffe, a Swiss gentleman, 
about 1862; Professor H. N. Moseley’s collection made on the 
voyage of H.MLS. ‘ Challenger,’ 1873-1876 ; a collection made by 
Mr. T. B. Cartwright during a cruise in 1888 ; and, finally, Mr. J. 
J. Lister’s collection, chiefly from the island of Eua, made in 1889 
and 1890. In addition to the foregoing, the French collectors 
or commanders of expeditions, Lesson, Hombron and D’Urville, 
are sometimes cited; a German named Jensen, who collected 
some Cyperacee determined by Mr. C. B. Clarke ; and the United 
States Exploring Expedition ; a set of plants of the last being in 
the Kew Herbarium. It has not been considered necessary to 
cite the names of all collectors in each case. The names of a few 
persons who have contributed one or two plants only are not 
included in the foregoing account. 
In answer to my inquiries respecting cultivated plants, Mr. 
Lister informs me that the cocoa-nut, tobacco, sugar, maize, taro 
(Colocasia antiquorum), pine-apple, orange, lime, breadfruit, yam, 
sweet potato, kava (Prper methysticum), paper mulberry (Brous- 
