2 
point of the Island, G. Kajang (3,383 feet) was reached and collected upon. 
Several plants new to science and several not before recorded as occurring 
in the Malay Peninsula were obtained. Among the former are a fine Begonia 
( B . tiomanensis Ridl.) a Coelogyne (C. tiomanensis Hend.) and a beautiful 
white flowered Kopsia (it. alba Ridl.). 
From October 10th to November 5th Mr. Henderson made a further 
expedition, to the Pahang-Kelantan boundary, for the purpose of collecting 
on the limestone hills there. Collecting was done near Chigar Perah, Pahang, 
and Goa Ninik, Kelantan, a number of plants being sent alive to Singapore for 
cultivation; among these, some interesting Balsams have been successfully 
established. Thanks are due to the Railway Construction Department at 
Chigar Perah for providing transport, and accommodation in their rest house 
and halting bungalows. 
During July Mr. Henderson visited Gunong Lanoh, near Ratu Gajah, 
Perak, and obtained living plants of the rare Bu.vus malayaniis Ridl. and 
Jasminum cordatum. Ridl. for cultivation in Singapore. 
During July, August and September Mr. C. Boden Keoss, Director of 
Musuems, S. S, and F. M. S., undertook an expedition to Sandakan, British 
North Borneo, Banguey, Balambangan and Mallewalle Islands. Mr. Keoss 
kindly took with him a plant collector from the Singapore Gardens and super¬ 
vised his work. The resulting collections of Angiosperms have been sent 
to Dr. E. D. Merrill for determination; the ferns to Mr. C. Christensen, 
and the mosses to Mr. H. N. Dixon. On December 27th the Director 
ascended Gunong Panti, Johore, and collected further material of some of the 
peculiar plants which are found on the rocks near the top of that mountain. 
Ophioglossum simplex. Ridl., a most remarkable fern, was also collected 
for the first time in the Malay Peninsula. 
HERBARIUM WORK AND OTHER INVESTIGATIONS 
While on leave in England, the Director worked in Kew Herbarium 
during February and March, mainly on the ferns 1 of the Malay Peninsula. 
At Singapore Mr. Henderson carried on the usual herbarium routine 
work, and in addition the following: — 
(a) Naming of large collections for the Forest Department; 
(i b ) Naming a small collection from Gunong* Benom, Pahang, made by a 
collector of the Federated Malay States Museums, and prepara¬ 
tion of a paper thereon, published in the Federated Malay States 
Museums Journal Volume XIII, part 4; 
(c) Preparation of a paper on plants from Cameron’s Highlands, 
Pahang, published in the Journal of the Malayan Branch, 
Royal Asiatic Society, Volume 5, part 2; 
(d) Completion of a paper on the flowering plants of the Kuala 
Lumpur district, for publication in the Gardens Bulletin; 
(e) Preparation of two small papers in the Gardens Bulletin, 
Volume IV, Numbers 2-3 ; 
(/) Determining collections from P. Aor and P. Tioman and prepara¬ 
tion of a paper on them. 
After his return from leave, the Director started a series of weekly obser¬ 
vations on the flowering and leaf changes of about 80 trees and shrubs, both 
local and exotic, in the Gardens. It is hoped that after a period of years 
these observations may be of considerable interest not only as a record of 
the behaviour of a, number of individual plants but also as a means of throwing 
some light on the question of the effect of our slight and irregular climatic 
changes on the periodic phenomena of plant life. The climate of Singapore 
is more uniform in character than that of any locality in the tropics where 
comparable series of observations have been carried out. 
