309 
Castilloa elastica, the Panama Rubber, was introduced to the 
Malay Peninsula by the Botanic Gardens of Singapore, in 1876. 
The climate is, however, unsuited for this plant, and it usually falls 
a victim to the attacks of the beetle {Epepseotes luscus). 
Manihot Glasiovii , Ceara Rubber, was introduced also by the 
Singapore Botanic Gardens, and plants were planted in Perak by 
Mr. Murton, in 1876. 
Mr. Murton did not believe in the suitability of the plant for 
this climate, as prolonged wet destroyed it, and he pointed this out 
in his Annual Report in 1878. In spite of this, a mania arose for 
planting it some years later, with the expected result of its perish- 
ing. Good trees, however, persist in many parts of the Peninsula and 
in Borneo, but no one now would attempt it on a large scale. One 
big tree in the Singapore Botanic Gardens fruits constantly and its 
seqjls have been sent to many parts of the Peninsula and to other 
parts of the Peninsula and to other parts of the world and the large 
tree at Kuala Kangsa flourish still or did till quite lately but pro- 
duces too little latex. 
Hancornia speciosa , the “Mangabeira” Rubber of Pernambuco 
was introduced by the Singapore Gardens in 1882. It perished 
however, and attempts to procure it again have failed. It is appa- 
rently a very troublesome plant, both seeds and plants travelling 
badly. It is an inferior Rubber and is suited only for dry regions. 
I have seen it on the sandy heaths of Pernambuco, where it grows 
as a small tree like a birch. 
M ascarenhaisia elastica was introduced by the Botanic Gardens, 
being received from Kew in 1898. It grows steadily, but not very 
fast except at first. It flowered early and fruited this year. 
Kickxia ( Funtumia ) ajricana was introduced from Kew, by the 
Singapore Gardens in 1897, and Kickxia elastica y the following year. 
The latter has not proved much of a success in any part of the Pen- 
insula, being much attacked by the caterpillar of Caprinia conchy- 
lalis. 
Landolphias, — A large number of the Rubber vines of Africa have 
been introduced by the Botanic Gardens, Singapore, chiefly received 
from Kew and the better class ones distributed to various parts of 
the Peninsula, Borneo, etc. 
Landolphia 
Watsonii in ... 
1881 
Peter siana 
1881 
Kirkii 
1881 
»! 
Florida 
1882 
Klainei 
1900 
>) 
Senegalensis ... 
i8 97 
JJ 
Owariensis 
1897 
» 
sp. Trinidad ... 
1898 
Willoughbeias , etc., the Malayan Rubber vines, were brought into 
cultivation by Murton, Cantley and myself and widely distributed 
to all, who would try them* About a dozen kinds were cultivated 
