3 
A planter alive to improvement of his crop will similarly destroy 
inferior stock from his estate, though one hopes none have trees whose 
progeny will yield rubber so badly as that of H. confusa. 
In the place of these removed trees, two trees now stand, being 
grafts from the best of the Gardens' trees. Nos. 27 and 610. It is hoped to 
find them fertile to each other when they come into flower: secondly, upon 
Lawn A. two grafted trees, both from No. 27, have been placed close together 
to see how fertile it is to itself. 
Herbarium .—Botanic exploration was directed to the less known floras 
of the Peninsula; one Expedition, undertaken by Mr. Holttum, was to 
Gunong Blumut in Johore, and another, undertaken by Mohamed Haniff, 
was up the Lebir river in Kelantan to the roots of Gunong Tahan. The 
results are being worked out. A report was published upon the collections 
made in 1922 about Fraser-Hill which has received a notice in “Nature”. 
Subsequent to the preparation of it, the Forest Department undertook some 
investigations in the same region and a plant collector was attached to their 
party. The same collector was later attached to a zoological party work¬ 
ing on Gunong Angsi in Negri Sembilan. The Assistant Director also was 
able to visit Fraser-Hill for a short spell, and Mr. Best was able to make 
a short tour in Selangor. The accessions, by these departmental efforts, 
run to nearly 1,900 numbers, with plenty of duplicate material for exchange. 
The exchanges that the Department makes are of the greatest import¬ 
ance at the present time; for without co-operation of this way between the 
several institutes studying the Malaysian flora there is much danger • of 
confusion arising by duplication of names. The following table shows how 
many specimens were sent out in 1923: — 
Royal Botanic Gardens, Kew ... ... ... 508 
Botanic Gardens, Buitenzorg ... ... ... 441 
Mr. H. N. Dixon (mosses for determination) ... ... 419 
Bureau of Science, Manila ... ... ... 267 
British Museum of Natural History, S. Kensington ... 186 
His Highness the Prince Roland Bonaparte (ferns) ... 156 
Botany School, Cambridge ... ... ... 156 
Royal Botanic Gardens, Calcutta ... ... ... 150 
Government Botanist, Brisbane ... ... ... 137 
Mr. G. Curtis Lloyd (fungi for determination) ... 109 
Arnold Arboretum, Jamaica plain, Mass., U. S. A. ... 97 
Division of Botany, Department of Agriculture, South 
Africa ... ... ... ... ... 9‘1- 
Forest Department, Kuala Lumpur ... ... 90 
Professor Oakes Ames, Cambridge University, Mass ... 76 
National Herbarium, Pretoria, South Africa ... ... 65 
Mrs. Malcolm Smith, Bangkok (named ferns) ... 31 
Imperial Forest Research Institute, Dehra Dun, India ... 23 
Miss G. Lister (Myxomycetes for determination) ... 4 
Mr. J. Groves (Characeae for determination) ... ... 2 
3»oio 
Hand-specimens of timbers to the number of 158 were sent out to many 
of the above along with herbarium material. 
The department has received a large amount of help in the form of 
determinations of plants from Mr. H. N, Ridley, Mr. H. N. Dixon and 
Mr. G. C. Lloyd, Miss G. Lister, and Mr. J. Groves. 
Mrs. Malcolm Smith sent 430 specimens of ferns and lycopods. The 
Prince Roland Bonaparte supplied 104 specimens and the Forest Research 
Institute, Dehra Dun, 22: Mr. C. Boden-Kloss gave ir, being Christmas 
and Cocos Islands plants. 
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