5 
3 
Mr. M. R, Henderson visited Kelantan in July. The Sungei 
Lebir (river) was ascended as far as the large shale ridge Bukit Batu 
Papan, and collections were made here and on the banks of one or 
two of the smaller streams in the neighbourhood. A number of 
interesting plants were obtained here, including a Begonia which 
appears to be new to the Peninsula flora. Kuala Betis, on the 
Nenggiri River, was next visited, and collections were made on the 
track between here and Gua Musang. A group of small limestone 
hills a few miles up the S. Betis was visited, and one of them, Gua 
Teja, was climbed. Fortunately, a large proportion of the small trees 
and shrubs on the summit of this hill were found in flower or fruit, 
a rather unusual occurrence on this type of limestone hill. Collections 
were also made round the base of Gua Lambok, another limestone hill 
in the vicinity. Thanks are due to the District Officer, Ulu Kelantan, 
for much assistance to Mr. Henderson during this expedition. 
While on leave in Java in April, Mr. Henderson was enabled, 
through the courtesy of Dr. Dammerman, Director of the Botanic 
Gardens, Buitenzorg, and Dr. van Steenis, Acting Chief of the 
Herbarium, to visit many places of botanical interest in West Java, 
including primary forest on limestone near Buitenzorg, the Mountain 
Garden at Tjibodas and the extremely interesting “tegals” or grass 
plains on the volcano Mount Papandajan. Some time was also spent 
in the herbarium at Buitenzorg. 
HERBARIUM WORK AND OTHER INVESTIGATIONS 
Mr. Henderson carried on the usual routine herbarium work and 
all collections made during the year, with the exception of 
Mr. Corner’s from Kemaman, were dealt with. Further progress 
was made in the preparation of a list of the plants growing upon lime¬ 
stone in the Peninsula. Mr. Henderson has now visited most of the 
limestone districts, and has acquired a considerable knowledge of 
the peculiar flora. Valuable collections amounting to over 1,000 
numbers, were received from the Conservator of Forests, 
B. N. Borneo. These were sent unnamed, and preliminary identifica¬ 
tions were made as far as the resources of the Herbarium permitted. 
New exchange relations were opened with Prof. H. H. Bartlett 
of the University of Michigan. Prof. Bartlett maintains a native 
collector in Sumatra, and as the Singapore herbarium is deficient in 
material from that island, this exchange should prove exceedingly 
valuable. A new exchange was also begun with Lingnan University, 
Canton, with the object of acquiring southern Chinese material. 
Thanks are due to the staff of the Herbarium of the Royal 
Botanic Gardens, Kew, for help in the naming of difficult and critical 
material during the year; to Mr. G. F. Symington for naming 
Dipterocarpacese; and to Dr. van Steenis for help in giving his 
opinion on various plants sent to him from time to time. 
Duplicate herbarium specimens were distributed in 1935 as 
follows:— 
Royal Botanic Gardens, Kew .. .. 1,061 
Forest Research Institute, Kepong .. 631 
Botanic Gardens, Buitenzorg, Java .. 388 
Bureau of Science, Manila .. ., 277 
