Malpighiacee.] THE HIMALAYAN MOUNTAINS. 133 
It is not contrary to natural analogies to find different kinds of juices secreted in 
different parts of the plants of the same family. Thus we find the mangosteen, the most 
delicious of fruits, according to the concurrent testimony of travellers, is afforded by 
one of the Guttifere. This, the Garcinia mangostana, is confined to the Malayan 
Peninsula, and the islands to the eastward of the bay of Bengal, which form the 
India aquosa of old authors as quoted by Dr. Jack; but is so local in its habits as to 
have resisted all Dr. Roxburgh’s attempts, repeated through a course of thirty-five 
years, to get it to thrive, no further north than 234° of latitude. Other species yield an 
edible, but less palatable fruit, as G. cowa, lanceefolia, kydia, and paniculata, the last 
is most like the mangosteen. G. pedunculata, yields an acid fruit (Rorb. 2. p. 626) ; 
Xanthochymus dulcis, pictorius, and ovalifolius, that which is edible. Many would no doubt 
afford useful timber, as Calophyllum angustifolium yields the. straight spars called peon, 
at Penang, and in the islands to the eastward of the bay of Bengal. The blossoms 
of Mesua ferrea are to be found in a dried state in every bazar, under the name nag- 
kesur, being used in medicine, as well as esteemed for their fragrance. The seeds ot 
Calophyllum inophyllum yield an oil, and a resin exudes from the roots, which is supposed 
by some authors to be the same as the Tacamahaca of the Isle of Bourbon. 
34. HIPPOCRATEACEZ. | 
This small order is placed by M. De Candolle between Marcgraviacee and Erythrorylee. 
By Mr. Brown it was shewn to be in some important respects allied to Celastrinee, 
which some of the species also resemble in general appearance. It is chiefly found in 
the warm parts of America, and also in Africa. In India it is found in the Peninsula, 
whence one species, Hippocratea indica (Roxb. Corom. t. 130) extends up into Bengal as 
far as the prolongation of the central range of mountains at Monghyr; while H. arborea 
(Roxb. Corom. t. 205) is found at the foot of the mountains on the N.E. frontier, as 
Silhet, Morung, Tipperah, and Chittagong. The genus Salacia, to which Johnia of 
Roxburgh has been referred in Dr. Wallich’s Catalogue, has a similar distribution, with 
one species from Nepal, probably from the low forests or warm valleys, whenee they 
extend downwards along the N.E. frontier, to the Burmese territories and the Malayan 
Peninsula. I have not met with any of the species in the northern parts of India. © 
: 35. ERYTHROXYLEZ. 
The Erythroxylee form a small order separated from Malpighiacee, to which they are, 
however, considered by Mr. Brown to be closely allied. They are distributed in South 
America and the West Indies, and some species are found in Madagascar and the 
islands of Mauritius and Bourbon. One, the only species of the genus Sethia, has been 
n India, and this only in the Peninsula up to the Circar mountains. This, S. indica, 
found i 
r species from Silhet has 
D.C., is the Erythrorylum monogynum of Roxburgh. Anothe 
been referred, with doubt, by Dr. Wallich, to this order. 
36. MALPIGHIACES. 
This order, named from an American genus, is nearly confined to that quarter of the 
globe, 
