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Palm Trees of the Amazon and Their Uses · Alfred Russel Wallace — chapter 6 of 26 · ~2,419 words · public domain

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The Indians collect the fruit in large quantities, and by burning and washing extract a floury substance, which they use as a substitute for salt when they cannot procure that article. They assert positively that the smaller species of Jará will not yield the same product; but perhaps this may be only because the fruit is less abundant, and they do not take the trouble to collect it.

Coarse Portugal salt is used in the Rio Negro, and among the Indians in the upper part of the river serves as a circulating medium, about a pound of it being reckoned equivalent to a day’s work. The supply however is very uncertain, and there are many distant tribes which it scarcely ever reaches; and it is among them that the substitute is manufactured from the fruit of the Jará. It is doubtful, however, whether it contains any true salt, for it is described as being more bitter than saline in taste; yet with this alone to season their fish and cassava the Indians enjoy almost perfect health. Perhaps, therefore, mineral salt may not be such a necessary of life as we are accustomed to consider it.

Pl. VI.

W. Fitch lith. Ford & West Imp.

LEOPOLDINIA PIASSABA. Ht. 20 Ft. ]

PLATE VI. LEOPOLDINIA PIASSABA, n. sp.

Piassába, Lingoa Geral. Chíquichíqui, Barré. [An Indian language spoken on the Upper Rio Negro in Venezuela.]

This tree, the “Piassaba” of Brazil and the “Chíquichíqui” of Venezuela, I have little hesitation in referring to the genus Leopoldinia, though I have never seen it in flower or in fruit. The texture and form of the leaves, the peculiar branching of the spadix, and the extraordinary development of the fibres from the margins of the sheathing petioles, show it to be very closely allied to the other species of this genus.

The stem is generally short, but reaches twenty to thirty feet in height, and is much thicker than in either of the preceding species. The leaves are very large and regularly pinnate, with the pinnæ gradually smaller to the end, as in the two former species. The leaflets are rigid, broadest in the middle, and gradually tapering to a fine point, spreading out flat on each side of the midrib, but slightly drooping at the tips. The petioles are slender and smooth. The spadix is large, excessively branched and drooping, and there are often several on the same tree. The marginal processes of the petioles are interlaced as in the two former species, and are produced into long riband-like strips, which afterwards split into fine fibres, and hang down five or six feet, entirely concealing the stem, and giving the tree a most curious and unique appearance. The leaves form an excellent thatch, and are almost universally used in that portion of Venezuela situated on the upper Rio Negro, and the adjacent tributaries of the Orinoco. The fruit is said to resemble that of the Jará in colour, but it is globose and eatable, being used principally to form a thick drink by washing off the outer coating of pulp.

The fibrous or hairy covering of the stem is an extensive article of commerce in the countries in which it grows. It seems to have been used by the Brazilians from a very early period to form cables for the canoes navigating the Amazon. It is well adapted for this purpose, as it is light (the cables made of it not sinking in water) and very durable. It twists readily and firmly into cordage from the fibres being rough-edged, and as it is very abundant, and is procured and manufactured by the Indians, piassaba ropes are much cheaper than any other kind of cordage. The price in the city of Barra in June 1852, was 400 reis or 1s. for 32 lbs. of the fibre, and 800 reis or 2s. for every inch in circumference of a cable sixty fathoms long, which is the standard length they are all made to.

Before the independence of Brazil, the Portuguese government had a factory at the mouth of the Paduarí, one of the tributaries of the Rio Negro, for the purpose of making these cables for the use of the Pará arsenal, and as a government monopoly. Till within these few years the fibre was all manufactured into cordage on the spot, but it is now taken down in long conical bundles for exportation from Pará to England, where it is generally used for street sweeping and house brooms, and will probably soon be applied to many other purposes. It is cut with knives by men, women and children, from the upper part of the younger trees, so as to secure the freshest fibres, the taller trees which have only the old and half-rotten portion within reach, being left untouched. It is said to grow again in five or six years, the fibres being produced at the bases of the new leaves. The trees are much infested by venomous snakes, a species of Craspedocephalus, and the Indians are not unfrequently bitten by them when at work, and sometimes with fatal consequences.

The distribution of this tree is very peculiar. It grows in swampy or partially flooded lands on the banks of black-water rivers. It is first found on the river Padauarí, a tributary of the Rio Negro on its northern side, about 400 miles above Barra, but whose waters are not so black as those of the Rio Negro. The Piassaba is found from near the mouth to more than a hundred miles up, where it ceases. On the banks of the Rio Negro itself not a tree is to be seen. The next river, the Darahá, also contains some. The next two, the Maravihá and Cababurís, are white-water rivers, and have no Piassaba. On the S. bank, though all the rivers are black-water, there is no Piassaba till we reach the Marié, not far below St. Gabriel. Here it is extensively cut for about a hundred miles up, but there is still none immediately at the mouth or on the banks of the Rio Negro. The next rivers, the Curicuríarí, the great river Uaupés, and the Isánna, though all black-water, have none; while further on, in the Xié, it again appears. On entering Venezuela it is found near the banks of the Rio Negro, and is abundant all up to its sources, and in the Témi and Atabápo, black-water tributaries of the Orinoco. This seems to be its northern limit, and I cannot hear of its again appearing in any part of the Amazon or Orinoco or their tributaries. It is thus entirely restricted to a district about 300 miles from N. to S. and an equal distance from E. to W. I am enabled so exactly to mark out its range, from having resided more than two years in various parts of the Rio Negro, among people whose principal occupation consisted in obtaining the fibrous covering of this tree, and from whom no locality for it can have remained undiscovered, assisted as they are by the Indians, whose home is the forest, and who are almost as well acquainted with its trackless depths as we are with the well-beaten roads of our own island.

The fibre imported into this country has been supposed to be produced only by the Attalea funifera, a species not found in the Amazon district. In the London Journal of Botany for 1849, Sir W. Hooker gave some account of the material, and of the tree producing it; stating that he had received the fruit of the tree with the fibre from a mercantile house connected with Brazil, and that the fruit was that of the Attalea funifera. This species is mentioned by Martius as furnishing a fibre used for cordage and other purposes in Southern Brazil, and he states that it is called “piaçaba”; so that the Indian name is applied to two distinct trees producing a similar material in different localities; and the two having been brought to England under the same name and from not very distant ports of the same country, were naturally supposed to be produced by the same tree. The greater part, if not all of the Piassaba now imported, comes, however, from the Rio Negro, where several hundred tons are cut annually and sent to Pará, from which place scarcely a vessel sails for England without its forming a part of her cargo.

GENUS EUTERPE, Gærtner.

Male and female flowers intermingled on the same spadix, the former more abundant in the upper part of the branches, the latter in the lower. Spathe entire, membranaceous, fusiform and deciduous. Flowers with bracts, male with six stamens and a rudimentary pistil, female with three sessile stigmas. Spadix simply branched, spreading horizontally.

These are very elegant palms; their stems are lofty, slender, smooth and faintly ringed. The leaves are terminal, pinnate, regular, and form a graceful feathery plume. The bases of the petioles are sheathing for a long distance down the stem, forming a thick column three or four feet long, of a green or reddish colour. The spadices, three or four in number, spring from beneath the leaves, and the spathes are very deciduous, falling to the ground as soon as they open. The fruit is small, globose, at first green, then violet or black, and consists of a thin edible pulp covering the hard seed.

Twelve species are known, inhabiting the West Indies, Mexico and South America, and there appear to be three species in the Amazon district, two of which I have figured. Some prefer marshy grounds near the level of the sea, others extend up the mountains to a height of 4000 feet.

Pl. VII.

W. Fitch lith. Ford & West Imp.

EUTERPE OLERACEA. Ht. 60 Ft. ]

PLATE VII. EUTERPE OLERACEA, Martius.

Assaí, Lingoa Geral.

The Assaí of Pará is a tall and slender tree, from sixty to eighty feet high, and about four inches in diameter. The stem is very smooth, of a pale colour, and generally waving, sometimes very much curved. The leaves are of moderate size, of a pale bright green, regularly pinnate, and with the leaflets much drooping. The column formed by the sheathing bases of the leaves is of an olive colour. The flowers are small, whitish, and very thickly set on the simply branched spadix. There are generally two or three, and sometimes even five or six spadices, growing out horizontally from a little below the leaf-column. The spathe is smooth and membranous, and falls off as the spadix opens. The fruit when ripe is about the size and colour of a sloe. It consists of a hard albuminous seed, with a rather fibrous exterior, and a very thin covering of a firm pulp or flesh.

This species is very abundant in the neighbourhood of Pará, and even in the city itself. It grows in swamps flooded by the high tides,—never on dry land. Its straight cylindrical stem is sometimes used for poles and rafters; but the tree is generally considered too valuable to be cut down for such purposes. A very favourite drink is made from the ripe fruit, and daily vended in the streets of Pará. Indian and negro girls may be constantly seen walking about with small earthen pots on their heads, uttering at intervals a shrill cry of Assaí——í. If you call one of these dusky maidens, she will set down her pot, and you will see it filled with a thick creamy liquid, of a fine plum colour. A pennyworth of this will fill a tumbler, and you may then add a little sugar to your taste, and will find a peculiar nut-flavoured liquid, which you may not perhaps think a great deal of at first; but, if you repeat your experience a few times, you will inevitably become so fond of it as to consider “Assaí” one of the greatest luxuries the place produces. It is generally taken with farinha, the substitute for bread prepared from the mandiocca root, and with or without sugar, according to the taste of the consumer.

During our walks in the suburbs of Pará we had frequently opportunities of seeing the preparation of this favourite beverage. Two or three large bunches of fruit are brought in from the forest. The women of the house seize upon them, shake and strip them into a large earthen vessel, and pour on them warm water, not too hot to bear the hand in. The water soon becomes tinged with purple, and in about an hour the outer pulp has become soft enough to rub off. The water is now most of it poured away, a little cold added, and a damsel, with no sleeves to turn up, plunges both hands into the vessel, and rubs and kneads with great perseverance, adding fresh water as it is required, till the whole of the purple covering has been rubbed off and the greenish stones left bare. The liquid is now poured through a wicker sieve into another vessel, and is then ready for use. The smiling hostess will then fill a calabash, and give you another with farinha to mix to your taste; and nothing will delight her more than your emptying your rustic basin and asking her to refill it.

The inhabitants of Pará are excessively attached to this beverage, and many never pass a day of their lives without it. They are particularly favoured too, in being able to get it at all seasons, for though in most places the trees only bear for a few months once in the year, yet in the neighbourhood of Pará there is so much variety of soil and aspect, that within a day or two’s journey, there is always some ripe Assaí to supply the market. Boys climb up the trees to get it, with a cord round the ankles (as shown on the Plate), and with its own leaves make a neatly interlaced basket to carry it home. From the great island of Marajó, its igaripés and marshes, from the rivers Guamá and Mojú, from the thousand islands in the river, and from the vast palm swamps in the depths of the forest, baskets of the fruit are brought every morning to the city, where half the population look to the Assaí to supply a daily meal, and hundreds are said to make it, with farinha, almost their main subsistence.

Footnote 1:

A small stream, literally “path of the canoe.”

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