CULTIVATION OF COCA.
Erythroxylon Coca appears to have come originally from Peru, and from there its cultivation was carried into Bolivia, Ecuador, New Grenada, and Brazil, in a word, throughout the entire torrid zone of South America.
For some time, as a result of the extended consumption of Coca and for a still stronger reason, now that the day is at hand when the consumption of Coca will assume greater proportions, numerous plantations of Coca trees have been laid out in regions where that shrub was formerly unknown. We take pleasure in recording that these attempts have proved successful in the Antilles, thanks to the disinterested sacrifices of our friend, Dr. Bétancès. It is also with pleasure that we present anew an interesting communication made by the learned doctor to the "Société d'Acclimatation de France" as appeared in the Revue Diplomatique, 17th of March, 1888.
BRANCH OF COCA. NATURAL SIZE.
Sent by Monseigneur de Mereño, Archbishop of San Domingo, to Dr. Bétancès, Paris.
"Dr. Bétancès has succeeded in acclimatizing Coca in the Antilles. At considerable expense and after numerous shipments of seeds and the transportation of plants (this with the greatest difficulty) to Porto Rico and San Domingo, Dr. Bétancès had the pleasure of receiving a fine branch of Coca in full bloom, which was sent to him by Monseigneur Mereño, Archbishop of San Domingo. This twig, which the members of the Society were enabled to examine, excited the most lively curiosity and won the commendation of M. Geoffroy Saint-Hilaire. It was raised from a plant which had been only eighteen months under cultivation."
"In Porto Rico the plant reaches a greater height than in Peru.
"A box filled with beautiful leaves has also been received by Dr. Bétancès and forwarded to Mr. Mariani. This also came from Monseigneur Mereño.
"It is therefore evident that the plant can be cultivated in the Antilles and that it may become a source of wealth to that country."
Plantations like this would probably thrive in Corsica or Algeria, countries where the temperature at certain points is somewhat analogous to that of the tropics.
It is a fact that this shrub does not attain its complete development except in countries where the mean temperature is from fifteen to eighteen degrees centigrade.
But heat does not suffice; great humidity is also necessary to Coca. Therefore it is met with principally on the sides of hills and at the bottom of wooded valleys which abound on both sides of the Cordillieras. Unfortunately, these regions are rather distant from the coast and they are, furthermore, devoid of easy means of communication; it is above all to this particular cause, the difficulty of transportation, that we must attribute the relatively high price of Coca leaves.
The cultivation of Coca trees is begun by sowing the seed in beds called Almazigos. As soon as the plant appears it is protected from the heat of the sun by means of screens and matting; when it reaches a height of from 40 to 50 centimetres, it is transferred to furrows 18 centimetres in length by 7 in depth, care being taken that each plant is separated from its neighbor by a distance of a foot.
During the first year maize is sown in the interspaces, rapidly overreaching the shrub, and taking the place of the screens and mats.
The growth of the shrub is rather rapid, reaching its full height in about five years. But the time when it becomes productive precedes that at which it attains its complete height by about 3½ years after being planted. After that, when the season has been especially damp, it yields as often as four times a year.
BRANCH OF COCA,
as grown in a hot-house.
Attempts have been made to acclimatize it in Europe, but so far without success. As early as 1869 the cultivation of it was tried in the Botanical Garden of Hyères, but no satisfactory result was obtained. We presented, in 1872, two samples to the appreciative and learned director of the Garden of Acclimatization of Paris, M. Geoffroy Saint-Hilaire, and notwithstanding all the care taken of the young plants, they failed to reach their full growth. Several frail Coca plants may be seen in the conservatories of the Jardin des Plantes de Paris, in the Botanical Gardens of London, of Brussels, etc., likewise at several great horticulturists' of Gand, notably Van Houten's. As may be seen by the large colored engraving[2] and by the branch engraved above, these specimens of Erythroxylon Coca are very far from giving an idea of the plant growing in the open air, in a soil and under a temperature that are favorable to its development, as shown by the leaves of Peruvian Coca, illustrated above, and which come from one of the newest haciendas of Santa-Anna, belonging to M. M.-P. Concha, bordering on the territory of a savage tribe of Antis or Campas, on the Urubanba river, which joins the Amazon in latitude 12° S., longitude 75° W.