Botanical Description.--A tree, with leaves alternate, odd-pinnate,
without stipules, bunched on the ends of the branches, with opposite,
serrate leaflets. Flowers yellowish-white in panicles, compound,
polygamous. Calyx bell-shaped, 5-toothed. Corolla, 5 petals. Stamens
10, free, in 2 series. Ovary inferior, 5-lobuled. Fruit, a globose,
greenish-yellow drupe with numerous bony seeds.
Habitat.--Everywhere in Luzon, Panay and Balabac.
_Canarium commune_, L. (_C. album_ and _C. Luzonicum_, Blanco.)
Nom. Vulg.--_Pili_, Tag.; _Java Almond Tree_, _East Indian Elemi_, Eng.
Uses.--The ripe pili nut is edible and sold in confectioneries. It
yields a fixed oil, an excellent sample of which was sent by the
Manila pharmacist D. A. del Rosario to the Paris Exposition of
1889. "It is an oil very similar to oil of almond and owing to its
physical properties may be used as a substitute for the latter for
all the requirements of pharmacy. The only inconvenience connected
with its use is the slight one that it solidifies at 3° C. It could
furthermore be very advantageously used in the manufacture of fine
grades of soap." (D. A. del Rosario.)
The incised trunk exudes a gum-resin called _brea blanca_ (white
pitch) in the Philippines and _elemi_ in Europe. Until recently it
was not known in Europe what tree yielded the gum elemi, some authors
stating that according to Blanco it was the resin of the _Icica abilo_,
Blanco (_Garuga floribunda_, Decsne); it is not true, however, that
Padre Blanco ever attributed such origin to that product or named his
Icica the "pitch-tree." On the contrary in speaking of the Canarium,
Blanco states that it yields a resin called "pili-pitch." I do not
know the reason for this confusion of terms, but presume it to be
due to imperfect knowledge of Spanish on the part of those who thus
quote Blanco.
Pili-pitch, or elemi, as they call it in Manila, is a substance
existing in soft masses, slightly yellowish or gray, resembling old
honey in appearance. Its odor is strong and agreeable, somewhat like
that of lemon and turpentine. Its taste is acrid and bitter.
The French pharmacist Meaujean demonstrated in 1820 that elemi contains
two resins, one soluble in the cold, and the other in hot spirits of
wine. Other chemists, among them Baup, Flückiger and Hanbury, have
found elemi to be composed of a resinous substance and a colorless
essential oil; the proportion of the latter Flückiger gives as 10%
and further states that it is dextrogyrous. Sainte-Claire Deville found
the essential oil levogyrous, a fact that emphasizes the probability of
there being different products in the market bearing the name of elemi.
Public-domain text, read in full here on John Shaqi.
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