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(Boswellia carteri Birdw Birdw.)
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Botanical: Boswellia Thurifera
Family: N.O Burseraceae
---Part Used---The gum resin.
---Description---Obtained from the leafy forest tree Boswellia Thurifera, with leaves deciduous, alternate towards the tops of branches, unequally pinnated; leaflets in about ten pairs with an odd one opposite, oblong, obtuse, serrated, pubescent, sometimes alternate; petioles short. Flowers, white or pale rose on short pedicels in single axillary racemes shorter than the leaves. Calyx, small five-toothed, persistent; corolla with five obovate-oblong, very patent petals, acute at the base, inserted under the margin of the disk, acstivation slightly imbricative. Stamens, ten, inserted under the disk, alternately shorter; filaments subulate, persistent. Anthers, caducous, oblong. Torus a cupshaped disk, fleshy, larger than calyx, crenulated margin. Ovary, oblong, sessile. Style, one caducous, the length of the stamens; stigma capitate, three-lobed. Fruit capsular, three-angled three-celled, three-valved, septicidal, valves hard. Seeds, solitary in each cell surrounded by a broad membranaceous wing. Cotyledons intricately folded multifid.
The trees on the Somali coast grow, without soil, out of polished marble rocks, to which they are attached by a thick oval mass of substances resembling a mixture of lime and mortar. The young trees furnish the most valuable gum, the older yielding merely a clear, glutinous fluid, resembling coral varnish.
To obtain the Frankincense, a deep, longitudinal incision is made in the trunk of the tree and below it a narrow strip of bark 5 inches in length is peeled off. When the milk-like juice which exudes has hardened by exposure to the air, the incision is deepened. In about three months the resin has attained the required degree of consistency, hardening into yellowish 'tears.' The large, clear globules are scraped off into baskets and the inferior quality that has run down the tree is collected separately. The season for gathering lasts from May till the middle of September, when the first shower of rain puts a close to the gathering for that year.
The coast of Southern Arabia is yearly visited by parties of Somalis, who pay the Arabs for the privilege of collecting Frankincense, and in the interior of the country, about the plain of Dhofar, during the southwest Monsoon, Frankincense and other gums are gathered by the Bedouins. (The incense of Dhofar is alluded to by the Portuguese poet, Camoens.)
---Constituents---Resins 65 per cent, volatile oil 6 per cent, water-soluble gum 20 per cent, bassorin 6 to 8 per cent, plant residue 2 to 4 per cent; the resins are composed of boswellic acid and alibanoresin.
---Medicinal Action and Uses---It is stimulant, but seldom used now internally, though formerly was in great repute . Pliny mentions it as an antidote to hemlock. Avicenna (tenth century) recommends it for tumours, ulcers, vomiting, dysentery and fevers. In China it is used for leprosy.
Its principal use now is in the manufacture of incense and pastilles. It is also used in plasters and might be substituted for Balsam of Peru or Balsam or Tolu. The inhalation of steam laden with the volatile portion of the drug is said to relieve bronchitis and laryngitis.
The ceremonial incense of the Jews was compounded of four 'sweet scents,' of which pure Frankincense was one, pounded together in equal proportion. It is frequently mentioned in the Pentateuch. Pure Frankincense formed part of the meet offering and was also presented with the shew-bread every Sabbath day. With other spices, it was stored in a great chamber of the House of God at Jerusalem.
According to Herodotus, Frankincense to the amount of 1,000 talents weight was offered every year, during the feast of Bel, on the great altar of his temple in Babylon. The religious use of incense was as common in ancient Persia as in Babylon and Assyria. Herodotus states that the Arabs brought every year to Darius as tribute 1,000 talents of Frankincense, and the modern Parsis of Western India still preserve the ritual of incense.
Frankincense, though the most common, never became the only kind of incense offered to the gods among the Greeks. According to Pliny, it was not sacrificially employed in Trojan times. Among the Romans, the use of Frankincense (alluded to as mascula thura by Virgil in the Eclogues) was not confined to religious ceremonials. It was also used on state occasions, and in domestic life.
The kohl, or black powder with which the Egyptian women paint their eyelids, is made of charred Frankincense, or other odoriferous resin mixed with Frankincense. Frankincense is also melted to make a depilatory, and it is made into a paste with other ingredients to perfume the hands. A similar practice is described by Herodotus as having been practiced by the women of Scythia and is alluded to in Judith x. 3 and 4. In cold weather, the Egyptians warm their rooms with a brazier whereon incense is burnt, Frankincense, Benzoin and Aloe wood being chiefly used for the purpose.
The word 'incense,' meaning originally the aroma given off with the smoke of any odoriferous substance when burnt, has been gradually restricted almost exclusively to Frankincense, which has always been obtainable in Europe in greater quantity than any other of the aromatics imported from the East.
There is no fixed formula for the incense now used in the Christian churches of Europe, but it is recommended that Frankincense should enter as largely as possible intoits composition. In Rome, Olibanum alone is employed: in the Russian church, Benzoin is chiefly employed.
The following is a formula for an incense used in the Roman Church: Olibanum, 10 OZ. Benzoin, 4 oz. Storax, 1 OZ. Break into small pieces and mix.
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Bear in mind "A Modern Herbal" was written with the conventional wisdom of the early 1900's. This should be taken into account as some of the information may now be considered inaccurate, or not in accordance with modern medicine.
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