Notes . 
339 
above quoted, but in this case the branching is very much more extensive. It does not 
appear that these ramifications are due to any such accident as the trampling on the 
branch by animals, as there are no signs of rooting at any of the internodes, and 
indeed the branching is too extensive to render this a probable cause. 
The proliferous Calamus described and figured in the previous paper from Matang 
in Borneo, p. 421, Fig. 39, proves to be Calamus pygmaeus , Becc. 
Daemonorops longipes , Mart. A plant in the Botanic Gardens has emitted a number 
of the long stems which lie upon the ground, the tips ascending. In one of these, 
which has probably been bruised or injured somehow, three shoots have been produced 
below the terminal one. This is somewhat similar to the production of buds on the 
rattan of Pledocomia previously mentioned, and will probably not develop much 
further. They are quite young as yet. The branching of the rattans of Daemonorops 
has not been observed before. 
HENRY N. RIDLEY. 
Botanic Garden, Singapore. 
UTRICULARIA EMARGINATA, BENJ.— Although much has been written 
in recent years upon the structure and development of species of Utricularia , there is 
still much to learn regarding them, and the interpretation of the homologies of the 
parts in these aquatic heterotrophic plants cannot be said to be yet determined beyond 
question ; indeed, an approach to such determination will only be possible after many 
more species have been thoroughly studied. As a contribution to our knowledge of 
the genus I give the following preliminary note upon Utricularia emarginala , a 
Mexican species first described by Benjamin, 1 which is now flourishing in the Royal 
Botanic Garden, Edinburgh, and which, so far as I know, has not been examined 
carefully before now. It was introduced to Edinburgh in 1906 by means of seeds 
obtained from a specimen in Pringle’s Mexican collections of 1904. A free-growing 
plant, as shown in Plate XXII, reproduced from a photograph by Mr. R. Adam, in 
a moderately warm temperature it flowers and seeds abundantly almost throughout 
the year, and these characters, along with its ready propagation from seed, make it 
a peculiarly favourable subject for study in the laboratory of the germination and 
subsequent history of this type of plant. In fact it may well become a useful plant 
for teaching purposes. 
Mr. Laurence Stewart, foreman in the Glass Department of the Royal Botanic 
Garden, gives the following account of his experience in the cultivation of the plant : — 
‘ Seeds should be sown in a shallow pan, having a thin layer of mud at the 
bottom, with enough water to cover the mud. Germination begins in the sixth week. 
‘ The plant grows submerged. Experiment has shown that the best method of 
cultivation is to keep the plant in partial shade in still water. When plants are 
cultivated thus the water soon becomes alive with micro-crustacea, which when they 
enter the bladders are absorbed by the plant as food. Once the water is infested with 
the micro-crustacea, the plant grows quickly and requires room; it will cover an area 
of a square yard in a short time. 
1 Linnaea, xx (1847). 
A a 
