5. Seed vessels ovate, 5-angled, containing many seeds.

Habitat.--Common in all parts of the islands. _Averrhoa Bilimbi_, L. Nom. Vulg.--_Kamias_, _Kalamias_, Tag.; _Kilingiwa_, Vis.; _Pias_, Iloc. Uses.--The small fruit of the camia springing from the branches and trunks of the trees is widely known in the Philippines, where they eat it green, pickled, and in salad; and when ripe fresh and preserved. Its qualities and therapeutic applications are the same as those of the following species. Botanical Description.--A tree 4-5 meters high with odd-pinnate leaves. Leaflets 12 pairs, ovate, linear, acute, soft and downy. Flowers small, pinkish or purplish, on trunk and branches. Stamens 10, five alternately longer. Pistils divergent. Fruit oblong, obtuse at the end, with five broad ribs. Habitat.--Very common throughout the islands. _Averrhoa Carambola_, L. Nom. Vulg.--_Bilimbin_, _Balimbin_, Tag. Uses.--The common name of this tree, whose fruit is so common, causes it to be confused with the name which Linnæus gives to the former species. Balimbin is a fruit of an acid taste, agreeable when ripe, serving the same uses for food as the camia. Its acidity is due to the presence of oxalic acid, which makes the green fruit useful for removing ink and rust stains from clothes. The juice of the fruit is refreshing and is given internally mixed with water and sugar as a refreshing drink in fevers and as an antiscorbutic. For the latter the ripe fruit is eaten uncooked. In Mauritius the juice is used to treat dysentery and hepatitis. Padre Blanco says that the natives use a decoction of camias and unthreshed rice in diarrhoea and bilious colic. In connection with the subject of camias and balimbins we should mention the fruit treatment of the bilious diarrhoea of the tropics, spoken of by the French physicians of Cochin China. Dr. Van der Burg of the Dutch Indies also strongly recommends the treatment of diarrhoea by fruits; in temperate regions using fruits like peaches, pears, etc., and in the tropics, lychies, mangosteens, etc. In regard to the mangosteens we must not forget that, while the bark is given because of the amount of tannin it contains, the composition of the pulp is very different. The fruit acids seem to exercise great influence in the cure of this obstinate disease and I do not hesitate to recommend for this purpose the camia and the ripe balimbin. Botanical Description.--A tree much like the former. Leaves odd-pinnate. Leaflets, 3-4 pairs, obliquely ovate, acute, the terminal leaflet nearly lanceolate. Flowers on the trunk, branches and in the axils of the leaves. Fruit oblong, with 5 very prominent acute-angled ribs. Habitat.--It grows, like the former plant, in all parts of the islands. RUTACEÆ. Rue Family. _Ruta graveolens, L._ (_L. angustifolia_, Pers.) Nom. Vulg.--_Rudu_, Sp.; _Rue_, Eng. Uses.--The rue of the European, American and Indian pharmacopoeias is emmenagogue, antispasmodic, anthelmintic, excitant, diaphoretic, antiseptic and abortive. It contains an essential oil, and rutinic acid (C_25_H_28_O_15_, Borntrager), starch, gum, etc. The essential oil is greenish-yellow, thick, acrid and bitter; specific gravity 0.911. It boils at 228°, is slightly soluble in water, and soluble in absolute alcohol. It is promptly oxidized by nitric acid, and is converted into pelargonic acid and other fatty acids. Rutin (or rutinic acid), according to Weiss, is a glucoside which exists in the form of fine needles, bright yellow in color. It is slightly soluble in cold water and more so in boiling water. It melts at 190°, and solidifies at freezing point, forming a resinous mass. Its physiological properties are as yet unknown. The part of the plant employed is the leaves, which owe their property, apparently, to the essential oil they contain, from which they also derive their strong and disagreeable odor and their bitter, acrid and nauseous taste. It is used principally as a uterine stimulant or emmenagogue, for which purpose it is given in doses of 0.10-0.15 centigrams of the freshly powdered leaf and 0.05-0.10 centigrams of the fresh leaves infused in a liter of water. The dry powder of the leaf should not be used because the essential oil volatilizes and a large proportion of it is lost, which is the most active principle of the drug. It is an agent which should be prescribed with the greatest prudence for large doses are poisonous even to the point of causing death. The symptoms following such doses are colic, vomiting, bloody diarrhoea and tenesmus. It is also used as an antihemorrhagic after childbirth, but its action is slow, not being felt for several hours after the administration of the drug; for this reason it cannot take the place of ergot, though it seems to be superior to the latter in passive hemorrhages. The essential oil is given internally in doses of 2-6 drops on a piece of sugar. It is sometimes used as an antispasmodic in hysteria, epilepsy and chorea. The Chinese make extensive use of this drug and it is one of their principal abortives. In Hindostan the dried leaves are burnt and the smoke inhaled as a cure for catarrh in children. They are careful not to administer it to pregnant women. Botanical Description.--A plant, 1 meter high, with leaves alternate, compound, the inferior ones 2-3-cleft; leaflets narrow, oblong, slightly fleshy. Flowers greenish-yellow, hermaphrodite, arranged in corymbose terminal cymes. Corolla, 4-5 free, concave petals. Calyx deeply divided, persistent. Stamens 8-10, free, in two whorls, inserted beneath a thick disc. Ovaries 5, unilocular, many-ovuled. Styles 5, first free, then united, forming a column terminating in a small stigma. Follicles 5, united at the base, 1 centimeter long, free superiorly, hard, rounded, rugose, opening on top. Seeds ovoid, angular, blackish, albuminous. Habitat.--Common everywhere in the Philippines. _Xanthoxylum oxyphyllum_, Edgew. (_X. violaceum_, Wall.; _Fagara piperita_, Blanco.) Nom. Vulg.--_Kayutana_, Tag.; _Salay_, _Saladay_, Vis. Uses.--The trunk bark is stimulant and is used as a sudorific in the treatment of fevers. The fresh bark is quite irritating, for which reason it is best to use bark taken from the more mature parts of the trunk, powdered and desiccated. The dose is 1/2-2 grams 2-3 times a day. Its stimulating properties render it useful in colic and in India it is used as a stomachic and digestive. Is seems also to possess diuretic properties. Botanical Description.--A tree 30-35° high, with trunk thickly set with large spines. Leaves odd-pinnate. Leaflets ovate, acute, obtusely serrate, small transparent vesicles on the surface, spines on the midrib and common petiole. Calyx very small, monophyllous. Corolla twice as large as the calyx, 4 petals. Stamens 4, inserted on the receptacle, the same length as the petals. Ovary superior, 4-angled. No style. Stigmas 2. Habitat.--Batangas, Morong, Manila. _Murraya exotica_, L. (_M. paniculata_, Jack.; _Connarus foetens_, and _C. santaloides_, Blanco.) Nom. Vulg.--_Kamuning_, Tag. Uses.--The leaves are stimulant and astringent, and are used in infusion (15 grams, to water one liter) to treat diarrhea and dysentery. The root and trunk barks are used for the same treatment and they as well as the leaves owe their properties to an essential oil and a bitter principle present in all parts of the plant. Vry has demonstrated the presence of a glucoside which he has named _murrayin_ (C_18_H_22_O_10_); it crystallizes in small, white needles, is slightly bitter, soluble in hot water and alcohol, insoluble in ether, slightly soluble in cold water. It melts at 170°, and dissolves in alkaline solutions coloring them green. Boiled in dilute acids it splits into _murrayetin_ and glucose. _Murrayetin_ (C_12_H_12_O_10_) crystallizes in white needles, inodorous, tasteless, slightly soluble in cold water and in ether, soluble in hot water and alcohol. Heat destroys its green color in solutions; alkalies, in the presence of cold, increase it. The leaves and the bark of the plant contain an essential oil. The foregoing description of this species applies equally well to the following species. Botanical Description.--A small tree 12° high with leaves alternate, odd-pinnate. Leaflets lanceolate, almost entire, rigid with small dots on each surface. Flowers in axillary, very short, compound racemes. Calyx very small, monophyllous, 5 lanceolate lobules. Corolla much longer than the calyx, 5 lanceolate petals. Stamens 10, joined, but not entirely united at the base; 5 alternate stamens longer than the others. Anthers sessile, regular. Ovary superior, compressed and borne on a disc. Style 1, same length as the stamens. Stigma thick, depressed, apparently 4-angled. Fruit fleshy, ovoid, acute and somewhat curved at the end enclosing a seed with coriaceous, downy testa. _Murraya Koenigi_, Spreng. (_Bergera Koenigi_, L.; _Connarus_ sp., Blanco.) Nom. Vulg.--(?) Botanical Description.--Leaves alternate, odd-pinnate. Leaflets obliquely ovate, acute, entire and glabrous. The testa of the seed bears no down, and may be divided into two parts. The decoction of the leaves of this species as well as the former is used to allay toothache. _Citrus acida_, F. (_C. notissima_, Blanco.) Nom. Vulg.--_Limón_, Sp.; _Dayap_, Tag.; _Lemon_, Eng. Uses.--The essence (essential oil) and juice of the fruit are the parts of the plant used in therapeutics. The essence extracted from the rind is yellow, fragrant, slightly bitter; density, 0.856; boiling point 165°. The juice which is turbid and pale yellow in color contains 9% citric acid, 3-5% gum and sugar and 2-8/10% inorganic salts. The essence is used to flavor certain pharmaceutical preparations, and is a diffusible stimulant which may be given internally in doses of 3-6 drops on a little sugar. The bitter rind is occasionally used in infusion as a stomachic and stimulant. The juice is most commonly used in lemonade, a cooling drink which, used intemperately in the Philippines, is apt to cause gastro-intestinal trouble, so commonly attributed to "irritation," but really the result of a general atony of the digestive organs. Lemon juice is also used with very good results as a local cleansing application for sore throat, as well as externally on fetid ulcers. In some forms of malarial fever it seems to have given satisfactory results, administered internally. In many navies lemon juice forms a part of the sea ration as a preventive of scurvy, upon which it exercises a real and noteworthy action. The Danish navy adopted it for this purpose in 1770, the English navy followed, then the French and possibly others. The English call it lime-juice, and its preventive dose is 30-40 grams a day. Its curative dose is 100-150 grams a day. To preserve the lime-juice it was bottled with a layer of oil, which, floating on the surface kept it from contact with the air; but this process gave it a bad taste as did also the addition of sulphate of calcium, and at present the English add, to each liter of juice, 60 grams of alcohol, which preserves it perfectly. Fonssagrives says that the antiscorbutic action of lemon juice is due rather to the vegetable juice itself than to the citric acid which it contains. Botanical Description.--A most familiar tree 11° or more high, trunk with solitary thorns. Leaves ovate, obtuse, acute-toothed, the petiole bearing serrate wings. Calyx 4-6-toothed. Corolla, 4 thick petals. Filaments 10-25 on the receptacle, some joined and bearing 2-3 anthers. Fruit thin-skinned, globular, about 1' in diameter; the rind adheres closely to the pulp. (This fruit closely resembles, if it is not identical with the lime fruit, _C. Limetta_, or _C. Bergamia_, Risso, though Gray states that the leaf of the latter has a wingless petiole.--J. B. T.) Habitat.--Common to all parts of the islands. _Citrus Bigaradia_, Hook. f. (_C. vulgaris_, Risso; _C. aurantium_, Blanco.) Nom. Vulg.--_Naranjas del país_, Sp.; _Kahel_, _Kahil_, Tag.; _Native Orange_, Eng. Uses.--The rind of the _cagel_ is the so-called bitter orange peel, the best of which comes from Curaçao and Barbadoes. It is tonic and is used in decoction and in syrup. The infusion of the leaves, 5-10 grams to the liter, is useful as a sedative and diaphoretic in hysterical and nervous attacks; the infusion of the flowers is similarly used. When distilled the flowers yield a very sweet essential oil called _neroli_, which is used as a perfume only. Botanical Description.--A tree 15-20° high, trunk bearing solitary spines. Leaves medium lanceolate, serrate, the apex notched, petioles winged. Flowers usually solitary. Calyx 4-5-toothed. Corolla 4-5 petals. Filaments joined or separate. Anthers about 20. The fruit, a small orange 2' or more in diameter, the peel closely adherent. The _C. aurantium verum_ or _C. reticulata_ (Blanco) has a yellow pulp and the rind is readily separated from it, a thin net of fibers intervening. _Citrus decumana_, L. Nom. Vulg.--_Suha_, _Lukban_, Tag.; _Toronjas_ Penins.; _Naranjas_, Sp.-Fil. Uses.--The fruit, which is handsome and large, and the leaves and flowers, are used for the same purposes as those of _C. bigaradia_. Habitat.--The above species are cultivated in all parts of the islands, and, like the variety _C. aurantium verum_, H. f. (_C. reticulata_, Blanco), commonly called _naranjita_, are among the most abundant of native fruits. _Ægle decandra_, Naves. (_Feronia ternata_, Blanco.) Nom. Vulg.--_Malakabuyaw_, Tag.; _Tabog_, Pam., Tag. (A species of Bael-Fruit Tree.) Uses.--We do not know the medicinal use of this plant in the Philippines. Probably it has none, but we may give those of the species. _R. marmelos_, Cor., the fruit of which is almost identical with that of our species and is called _Bela_ or _Bael_ in India. The fruit of the Malakabuyaw is ovoid and full of a mucilaginous pulp, aromatic and acid, the same as that of the Bael. The uses of the latter are the following: The pulp acts as an astringent, but it would be more correctly called a tonic of the intestinal mucosa, for it has been experimentally proved that, although it checks diarrhoea, it also acts as a laxative in chronic constipation. In both conditions it seems to operate by toning and regulating the functions of the intestine. Martin, an English physician, was the first to call attention to the properties of Bael, and according to Dr. Green one dose of the pulp of the ripe fruit, prepared with sugar and given every morning, is an efficient remedy in the treatment of the dyspepsia of Europeans in India, especially in the form characterized by constipation and flatulence. The green fruit is a powerful astringent used by the Hindoos for diarrhoea. In cholera epidemics Dr. Bose advises the daily use of an ice made from the pulp of the ripe fruit, the object being the regulation of the functions of the intestine. The Pharmacopoeia of India contains the following preparations: _Mixture._--Pulp of the ripe fruit 60 grams. Water 120 grams. Sugar 60 grams. Mix, and if desired add chopped ice. This forms a very agreeable drink which has the aroma of the fruit itself, and may be repeated 2-3 times a day. When the fruit is ripe, this preparation is not only astringent in cases of diarrhoea, but possesses the additional property of increasing the appetite. If the patient's stomach is very weak, the preparation may produce vomiting in which event it is necessary to give it in small doses or to employ the extract. _Extract of Bael._--Pulp of the ripe fruit is placed in a vessel and sufficient water added to cover it. It is then heated and evaporated to the consistency of a soft extract. The dose is 2-4 grams, 2, 3 or 4 times a day. _Fluid Extract of Bael._-- Pulp of Bael 500 grams. Water 3 liters. Rectified alcohol 60 grams. The Bael is macerated in a third of the water and at the end of 12 hours the liquid is decanted and another third of water is added; the maceration is repeated and the same process followed till the last third of water is used. Express the residuum, put all the liquid into one vessel, filter and evaporate till reduced to 800 grams, then cool and add the alcohol. Dose, 4-8 grams. The fluid extract is less active than the freshly prepared solid extract. According to Dr. G. Bidie, the fruit of the _Feronia elephantum_, Correa (the species that grows in the Philippines), possesses the same properties as Bael. Its leaves are astringent, aromatic and carminative, and the gum with which the trunk of the tree is covered is a good substitute for gum arabic. Botanical Description.--A tree 7-8 meters high, the trunk covered with large, solitary spines. Leaves alternate, ternate. Leaflets lanceolate, scalloped and glabrous, the middle one larger than the others. Calyx 5-toothed. Corolla, 5 thick petals, linear, much longer than the calyx. Stamens 10. Ovary cylindrical. Style and stigma thick. Fruit oblong, more than 3' long and 2' thick, with a surface irregular with prominences and grooves; 10 or more compartments, each containing several ovoid, compressed seeds, ending with a woolly tuft. Habitat.--San Mateo, Montalbán (Manila); Arayat (La Pampanga). _Feronia elephantum_, Correa. (_Murraya adorata_, Blanco.) Nom. Vulg.--_Panoan_, _Pamunoan_, Vis.; _Wood-apple_, Eng. Uses.--The pulp of the ripe fruit has an agreeable odor and is edible. In India the green fruit is used as an astringent in diarrhoea and dysentery; the ripe fruit is given in diseases of the gums and as a gargle. Mir Muhammad Husain states that the ripe fruit is a refrigerant, astringent, cardiac and general tonic, and is very efficacious in the treatment of salivation and ulcers of the throat, strengthening the gums and operating as an astringent. A sorbet made of the ripe fruit whets the appetite and the pulp is used locally for bites of venomous animals. In the latter case the pulverized bark may be used if the fruit cannot be obtained. The fruit of Ferona is a substitute for Bael (_Ægle Marmelos_), and is used as such by the English physicians in the hospitals of India. The tender leaves have an agreeable aroma similar to that of anise and are used internally in decoction as a stomachic and carminative. The incised trunk exudes a gum which is used in India as a substitute for gum arabic and there is an active trade in this gum in the bazars of Bombay and Calcutta. According to Pereira, it was at one time imported into England from the east of India under the name of gum arabic. It exists in the form of irregular, semitransparent pieces, of a brownish-red color. With water it forms a mucilage as adhesive as gum arabic, and this solution reddens litmus paper. It is dextrogyrous and is precipitated by the neutral acetate of lead and by caustic baryta. Botanical Description.--Tree 3-4 meters high. Leaves fragrant, opposite, odd-pinnate. Leaflets, 2 pairs, lanceolate, entire, and glabrous. Common petiole flattened above. Flowers terminal, white, racemose, with 2 flattened peduncles. Calyx inferior, with 5-6 divisions. Corolla, 5-6 petals. Anthers oval. Ovary oblong, 5-lobuled. Style short, caducous. Stigma spindle-shaped. Ovules numerous, compressed, in several series. Fruit pulpy, globose, with woody rind, one compartment and many compressed, oblong seeds. Habitat.--Mountains of Angat. Woods of Catugán (Iloilo). SIMARUBACEÆ. Quassia Family. _Samadera Indica_, Gaertn. (_Niota tetrapela_, DC. & Blanco; _Manungala pendula_, Blanco.) Nom. Vulg.--_Manungal_, Tag., Pam., Bicol.; _Manunagl_, _Linatoganak_, _Palagarium_, _Daraput_, Vis. Uses.--The wood and seeds contain an intensely bitter principle. The Filipinos make cups and vases of the wood and allow water to stand in them 6-12 hours, thus preparing a solution of the bitter principle of the plant which they use in various stomach disorders. Vrij has extracted from the seeds a 33% oil of a bright yellow color, composed, according to Oudermans, of 84 parts olein to 16 of palmitin and stearin. The bitter principle contained in the root, wood and bark was discovered by Blunse who named it _samaderin_; it is a white, crystalline, foliaceous substance, more soluble in water than in alcohol, fusible. Nitric and hydrochloric acids color it yellow. Sulphuric acid immediately forms a violet red color which disappears as iridescent, feathery crystals are precipitated. (D. Beaumentz et Egasse.) The Filipino "herb-doctors" concoct an oil of manungal that in reality contains none of the ingredients of the seeds; it is simply cocoanut oil in which chips of the wood have been soaked. They use it in doses of 30-60 grams as a purgative, externally as an application to the abdomen in colic or indigestion and with friction in rheumatism or contusions. In India the oil extracted from the seeds is used locally with friction in rheumatism. The decoction of the wood and the powdered wood are given in fevers, in dyspepsia and as a general tonic. Infusion.--Chips of the wood 20 grams. Water 500 grams. A wineglassful several times a day in cholera, fevers, diarrhoea, etc. Botanical Description.--A small tree, trunk straight, the wood white and very light in weight. Leaves 4-5' long, alternate, acute, oval, entire, glabrous, coriaceous, veined. Petioles very short, no stipules. Flowers in terminal umbels, each composed of 4-6 flowerets with moderately long pedicels. Common peduncle, very slender, very long, drooping. Calyx of same color as corolla, inferior, very small, 4-lobuled. Corolla purplish, very long, 4 straight, linear petals. Stamens 8, inserted on the receptacle. Filaments of equal length with the petals, with 1-2 appendices at the base. Anthers spiral. Ovary 5-lobuled, borne on small stalk. One style of equal length with the stamens, situated above the center of the 5 lobules of the ovary which develop into 5 future pods. Stigma simple. Fruit 5 woody pods, short, united centrally above a small base, semi-lunar in form, medianly expanded, venate, containing a small wrinkled, kidney-shaped seed attached by a seed-stalk to the superior suture. Habitat.--Very common and well known everywhere in the Philippines. Blooms in February. BURSERACEÆ. Myrrh Family. _Garuga pinnata_, Roxb. (_G. Madagascarensis_, DC.) Nom. Vulg.--_Bugo_, Tag. Uses.--The fruit is slightly acid and edible. The trunk exudes an abundant gum, of the odor of turpentine, translucent, greenish-yellow, forming small masses slightly soluble in alcohol, soluble in water, with which a mucilage is formed. The juice of the leaves is used for asthma. The sap is used in Bombay to remove opacities of the cornea. There is another species in the Philippines, _G. floribunda_, Decsne (_Icica Abilo_, Blanco), _abilo_, Tag., the root of which furnishes a decoction used for phthisis. This species also produces a gum-resin similar to that of the _bugo_. 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