Part 10

Botanical Description.--A tree with leaves long-petioled, oblong, lanceolate, acuminate, rounded at the base, thick, coriaceous, upper surface lustrous, lower surface greenish or covered with a waxy, ash-colored powder. Flowers terminal or axillary, solitary, yellowish. Calyx 4 imbricated sepals, orbiculate, slightly pubescent. Corolla 4 persistent petals, wedge-shaped, short, with rounded points. Stamens indefinite, free, in 5-6 series. Ovary free, 2-celled, each cell containing 2 ovules. Style bilobed. Fruit nearly unilocular, ovate, acuminate, encompassed at its base by the sepals, the lower part of the petals, and crowned by the style. Pericarp woody, dehiscent at the tip by 2-4 valves; contains 1-4 seeds, slightly orbiculate, coriaceous.

Habitat.--Common in the forests.

DIPTEROCARPEÆ.

Dipterocarpus turbinatus, Gaertn. (D. Indicus, Bedd.; D. Mayapis, Blanco.)

Nom. Vulg.--Mayapis, Tag.; Gurjun, Kanyin, Indo-Eng.

Uses.--This tree yields an oleo resin, used in medicine and known under the name of bálsamo de gurjun. Other species of Dipterocarpus (D. alatus, Roxb.; D. incanus, Roxb.; D. trinervis, Bl., etc., etc.) produce the same substance. Balsam of Gurjun is a stimulant of the mucous membranes, especially those of the genito-urinary tract, and is diuretic. It is also indicated in bronchial catarrh and as a local application in ulcer. The first to recommend the use of gurjun as a substitute for copaiba was Sir W. O'Shaughnessy in 1838, and in 1852 this property was confirmed by Waring with highly satisfactory results. Dr. Enderson of Glasgow employed it in cases that received no benefit from copaiba, giving a teaspoonful t. i. d. in emulsion. Dr. Rean also classed it as equal to copaiba in efficiency.

The daily dose ranges from 5-20 grams, in liquid or pill.

The following is an excellent formula for an emulsion:

Cinnamon water 125 grams. Sodium carbonate, crystals 2 grams. Balsam of gurjun 25 grams. Syrup of gum 25 grams. Sulphuric ether 2 grams.

Mix and shake.

Dose.--6-12 large spoonfuls each day, for the declining stage of gonorrhoea.

In Burmah they extract the balsam by the following method: A large hole is cut in the trunk of the tree and a fire is built in this cavity and kept up till the wood of the trunk begins to burn, by which time the oleo resin has collected in abundance in the segments of bamboo placed to receive it. When the exudate diminishes, fire is again placed in the cavity and one tree may tolerate 2, 3 or even 4 of these cavities. The exudate on standing separates into 2 parts; a solid called "guad" which forms the lower layer, and a supernatant liquid which is the balsam. It is dense, viscid and very fluorescent; opaque and gray-green by reflected light. It has an odor similar to that of copaiba, is bitter and aromatic. Its density is 0.964. It is soluble in benzine, in bisulphuret of carbon, chloroform, the essential oils and less so in ether and acetic acid. It becomes turbid and coagulates if it be kept at 100° for some time and it solidifies at 200°, while copaiba remains liquid at this temperature.

A specimen of the balsam examined by Flückiger consisted of 54.44 parts semifluid resin and 45.56 volatile material. Upon distillation it yields an essential oil, of slight odor, straw-colored; formula C20H32 (Werner). If purified its density is 0.915. It is soluble in amylic alcohol, scarcely so in absolute alcohol. Hydrochloric acid colors it a beautiful blue. The resin remaining after distillation, dissolved in alcohol 0.838 with the addition of ammonia, yields as a precipitate a crystalline acid (gurjunic acid), C44H64O8, soluble in alcohol 0.838, in ether, in benzol and bisulphide of carbon. It melts at 220° (Werner), solidifies at 180° and is decomposed at 260°.

Botanical Description.--A very large, handsome tree with leaves about 5' in length, alternate, ovate, broad and lanceolate, entire, glabrous and membranaceous. Petioles very short. Flowers terminal, paniculate, handsome, fragrant. Calyx free, 5 lanceolate sepals, of which 2 are slightly longer than the others. Corolla, 5 yellow oblong petals longer than the sepals. Stamens numerous, attached to the receptacle. Filaments very short. Anthers of 2 divisions each ending in a long beard. Ovary half buried in the receptacle. A single thick style. Three simple stigmas. Seed vessel of 3 cells, seeds in pairs.

Habitat.--In Luzon in the mountains of Tala, Angat and San Mateo; in Mindanao, Paragua, Balabac and Negros. Blooms in June.

MALVACEÆ.

Mallow Family.

Sida carpinifolia, L. (S. acuta, Burm.; S. stipulata, Cav.; S. frutescens, Blanco.)

Nom. Vulg.--Wawalisan, Eskobanghaba, Pamalis, Higot-balato, Mamalis, Tag., Vis., Pam.

Uses.--The root is emollient and bitter. The decoction is used as a lotion for ulcers, and internally as a sudorific and tonic-astringent. The physicians of India prescribe the powdered root with milk for fevers and for nervous and urinary diseases. The leaves are used locally in ophthalmia.

The juice of the root is employed as a wash for all kinds of sores and ulcers and the juice of the entire plant is given for spermatorrhoea. After experimenting with the root, the compilers of the Bengal Dispensatory announced their uncertainty as to whether or not it possessed antipyretic properties; however, they pronounce it diaphoretic, an exciter of the appetite and an excellent bitter tonic. In Goa the Portuguese consider it diuretic and use it especially in rheumatic affections.

The root of S. carpinifolia gives a blue color with the salts of iron. It does not precipitate gelatin and contains asparagin.

Botanical Description.--A plant 2-4° high with woody, branching stem, leaves alternate, oblong, pointed, serrate, under surface neither hoary nor tomentose as in some other species of Sida. Petioles very short, curved near the leaf, 2 stipules near the base. Flowers axillary, solitary. Calyx simple, in 5 parts. Corolla, 5 petals notched obliquely. Stamens numerous, inserted on the end of a column. Anthers globose. Styles 5, mingled with the stamens. Stigmas globose. Cells of the same number as the styles, verticillate, with solitary seeds.

Habitat.--Common in Luzon, Panay, Mindanao, Paragua, Cebú and Balabac.

Abutilon Indicum, Don. (Sida Indica, L.)

Nom. Vulg.--Kuakuakohan, Giling-gilingan, Tag.; Tabing, Malis, Dulupag, Pilis, Vis.; Malvas de Castilla, Sp.-Fil.

Uses.--The trunk bark is slightly bitter, and in decoction is used as a diuretic. An infusion of the leaves and flowers is used as an emollient in place of mallows. The infusion of the root is used for the same effect, as a lotion or injection. I have often had occasion to employ this plant and would never use the Philippine mallow in place of it.

Botanical Description.--A plant 3-4° high, all its parts covered with hairs, simple and tomentose. Leaves heart-shaped, angular, obtuse, unequally serrate, smooth, soft, the lower surface hoary and bearing 9 well-marked nerves. Petioles longer than the leaves, with 2 stipules at the base. Flowers yellow, axillary, solitary. Peduncles long, with a node near the end. Calyx, 5 sepals, as in all the Malvaceæ. Corolla, 5 petals with a small notch at the end. Stamens very numerous as well as the styles. Both arise from the summit of a very short column and twist in all directions forming a tassel or tuft. Fruit much higher than the calyx, of 10-20 cells or carpels which are broad, compressed, hairy, the walls united toward the center, each containing 2-3 seeds.