379 
lar as to its soil. I have seen however excellent Lemons grown in 
Singapore by Mr. Gunn. . . . , 
Citron, Citrus medica.— The citron has been cultivated here, and 
some forms are well known to natives. The Katinga of Southern 
Siam, described in Bulletin 3 p. 96, is probably a wild form, and 
there are some curious thick skinned wild oranges in the Peninsula 
which are also probably wild forms. The fruit of the citron proper 
is of larcre size oblong and irregularly warted or wrinkled, the rind 
very thick and the pulp scanty and dry. The rind is the part used 
in confectionery, as candied peel. The Katinga had lanceolate 
thin leaves with a very short petiole. The fruit was about 4 inches 
long and 3 inches through oblong and rounded at both ends green- 
ish coloured eventually turning yellow, dotted and warty. 1 lie 
rind is half an inch thick lemon yellow inside full of oblong parallel 
turpentine cells narrowed at the mouth and enlarged below, tough 
and with a turpentiney taste rather bitter. 
There are live partitions in the fruit rather thick and tough. 1 lie 
seeds numerous about 5 in a section ovate flattened i an inch 
long w inch thick olive grey. The pulp is a sticky tasteless mass 
of flattened fibres olive green. . 
This is perhaps the original wild form of the citron, which 
Loureiro gives the name of Cay tanh yen as Cochin Chinese which 
might easily be modified into Katinga. 
Citrus hystrix , — Liman Puru, is a small tree with dark green 
leaves 3 inches long" the blade il inch long and an inch wide rounded 
and very slightly notched round the edge, the petiole wing is nearly 
as large or even larger than the blade so that the leaf looks as if it 
was made of two one on the end of the other. The fruit is about 
2 inches long green pearshapsd and curiously wrinkled all over. 
The rind is about £ inch thick. The pulp is slightly bitter and very 
acid. It is chiefly used for cleaning the hair but also in medicine. 
The rind is scraped to use in flavouring cakes. 
This plant is probably a cultivated form of the citron. 1 obtained 
a plant with very similar fruit in Pahang some years ago under the 
name of Limau Kedangsa the only difference being the wing of the 
petiole of the leaf which was quite narrow the development of this 
wing however is not at all characteristic as trees differ very much 
in this matter. The fruit is figured in Bonavia’s oranges and Le- 
mons of India and Ceylon Plate CCXXY under the name of the 
Leech Lime or Caffre lime. He considers it to be the Citrus 
hystrix of Kurz, and probably originally wild in the Moluccas. 
The Orange, Citrus Aurantium , is often cultivated especially in 
Malacca. In Singapore the soil is hardly sufficiently good, and the 
trees are often unhealthy, producing small and sour fruits and 
being much affected by blight. It is probable that the excessive 
wet of our climate is injurious to the orange trees, as in the dryer 
portions of the Peninsula such as Malacca they are much better 
I have seen very good oranges there, as well as Tangerine oranges. 
It is perhaps unnecessary to mention that our oranges like all tro- 
pical ones are quite green when ripe and do not develop the yel- 
low colour of the imported Chinese or European oranges. Some 
