2 MR..H. N. RIDLEY ON PLANTS 
the command of Lieutenant (now Captain) A. Van de Water, and numbered in all 
226 persons. A landing was made on the Utakwa River on September 18, 1912, and 
the expedition left the country on April 3, 1913. 
An account of the expedition has been published in the ‘ Geographical Journal’ 
(vol. xliii. 1914, pp. 248-268), from which I have taken some information, and Mr. Kloss 
has added to the present paper a short account of the track followed. The collections 
made by him, and brought down under great difficulties by the expedition, are the most 
extensive and important ones ever brought to this country from New Guinea. 
Despite the large botanical collections made in Dutch and German New Guinea, 
and described by Dutch and German botanists, the number of new species and genera 
in proportion to the number of specimens collected is very large, there being about 
500 new species and 8 new genera. This illustrates the extraordinary richness of the 
Papuan flora. The flora of British New Guinea has been more neglected than that 
of Dutch and German New Guinea; except for Forbes’s collections on the Sogeri 
Mountains, which have not yet been fully worked out, and a small lot obtained by 
Macgregor and Giulianetti, no collecting of importance has been done there. 
In working out this great collection I was assisted by Mr. E. G. Baker, who identified 
and described the Leguminose and Melastomacese, Mr. Spencer le Marchant Moore 
and Mr. Wernham, who took charge of the Gamopetale except the Utricularias, which 
I undertook myself. Mr. C. H. Wright has determined the Cellular Cryptogams, and 
Mr. Massee the Fungi, mostly parasitic on the dried flowering plants. 1 have also 
to thank Fleet-Surgeon Matthew for assistance and advice as to the Ferns, and 
Mr. Sprague and others of the Kew Staff for advice on various critical species. "The 
field-notes as to colour were made by Mr. Kloss on the tickets. There being no locality- 
names known at the spots where the plauts were collected, they are localised by the 
Camp number and altitude. Where such a locality is given as IX to XI, it signifies 
that the plant was collected en route between these two points. 
— TIrixERARY BY C. B. Kross, F.R.G.S. 
Carstensz Peak, 15,964 ft. high and situated in 4^ 5' 50" N. and 137? 12' 50" E., is some- 
what west of north of, and about 623 miles distant from, the mouth of the Utakwa River, 
where the expedition entered New Guinea. It is slightly the highest of several snowy 
summits which occur along the great mountain range that runs, speaking very broadly, 
east and west across this portion of the island, and has by far a larger area of snow than 
any other peak in the chain, while Mt. Idenburg, another snow summit, lies only some 
ten miles to the westward ; so that the area of high land is greater in this locality than 
in any other part of New Guinea, which possesses the only equatorial snow-mountains 
between Africa and America. | 
. Ranges of high mountains, with peaks rising to 11,400 ft., run more or less parallel 
to the Main Chain and 10-12 miles distant, while the foothills begin to rise from 
the coastal plain about 20-30 miles to the south of it. 
