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rubber producers do not seem to occur in the country. Some of the 
rubber trees however have been introduced Hevea braziliensis, in- 
troduced in 1891, disappeared soon afterwards. It has however 
been reintroduced and seems to do well in the region south of 
Annam and can be tapped in six years. Ceara rubber does not seem 
able to stand the dry season, at Saigon nor the cold of Hanoi. 
Castilloa introduced in 1889 disappeared in 1900. Ficus elastica, 
is indigenous in Annam and seems to offer the best hope of French 
Indo-China becoming a rubber producing country. 
H. N. RIDLEY. 
MALAY DRUGS. 
The papers published on Malay drugs in the Bulletin last year 
have been translated into Dutch ‘by Dr. Greshaff of the Kolomaal 
Museum, Haarlem, and published in De Indische Mercuur, unde'r 
the title De Inlandsche Genees?niddelen de M aiders. 
H. N. RIDLEY. 
FRUITING OF THE FRANGIPANI (PLUMIERA) 
The well known plants of the Genus Plumiera commonly called 
Frangipani are natives of South America with one or two in Africa 
and Madagascar, about fifty species are recorded but only about 
eight are in cultivation. The best known of these is F. acutifolia 
which is cultivated ev ry where, and especially in grave-yards, where 
very large specimens may often be seen. It has white flowers with 
more or less pink backs. 1 1 
P. rubra is easily distinguished by its beautiful rose-coloured 
flowers. It is not very common, in cultivation in the East, having 
been introduced comparatively lately. 
These plants do not as a rule fruit very readily. It is quite rare 
to see. P. acutifolia in fruit common as it is here, P. rubra however 
seems to fruit more easily. 
Mr. Machado has lately sent seeds from Kamuning Estate, and 
it is fruiting too in the Botanic Gardens. The fruit consists of two 
follicles rather thick, and cylindric spreading out widely apart like 
buffalo horns. The seed is about an inch long flat and oblong 
from its rather broad dry brown wings. 
H. N. Ridley. 
Bibliography. 
We have received a copy of the account of the Ceylon Rubber 
Exhibition published as the first of a series of Peradeniya manuals 
under the title of Rubber in the East, an official account of the 
