Arriving in Chili about the end of the long dry season, I had but very moderate expectations as to the prospect of seeing much of its peculiar vegetation, and I was agreeably surprised to find that there yet remained a good deal to interest me, especially among the characteristic evergreen shrubs, having much of the general aspect of those of the Mediterranean region, though widely different in structure from the Old-World forms. One or two slight showers had fallen shortly before my arrival, and as a result the ground was in many places studded with the golden flowers of the little Oxalis lobata. This appears to have a true bulb, formed from the overlapping bases of the outer leaves, in the centre of which the undeveloped stem produces one or more flowers, which appear before the new leaves. The surface of the dry baked soil was extremely hard, costing some labour to break it with a pick in order to collect specimens, and it is not easy to understand the process by which a young flower-bud is enabled to force its way to the upper surface. The open country on the hills near Valparaiso is bare, trees being very scarce, and for the most part reduced to the stature of shrubs with strong trunks; but in the ravines, or quebradas, that descend towards the coast some of these rise to a height of twenty or twenty-five feet.
One of the objects of my walk over the hills was to obtain a good view of the Andes, and especially of the peak of Aconcagua, the highest summit of the New World. I had had a glimpse of the peak from the sea on the previous morning, but light clouds hung about the entire range during this day, and I was unable to identify with certainty any of the summits. The distance in an air line is about one hundred English miles, and I was struck by the clearness of the air in this region as compared with what I had seen from the coast of Ecuador or Peru. Every point that stood out from the clouds was seen sharply defined, as one is accustomed to observe in favourable weather in the Mediterranean region.
WINTER’S BARK.
Returning to the town, I took my way along one of numerous deep ravines that have been cut into the seaward surface of the plateau. Though they are witnesses to the energetic action of water, they are often completely dry at this season; yet they exercise a marked influence on the vegetation. The shrubs rise nearly to the dimensions of trees, and several species find a home that do not thrive in the open country. I was specially interested in, for the first time, finding in flower the Winter’s bark (Drimys Winteri), a shrub which displays an extraordinary capacity of adaptation to varying physical conditions, as it extends along the west side of America from Mexico to the Straits of Magellan, and also to the highlands of Guiana and Brazil, accommodating itself as well to the perpetual spring of the equatorial mountain zone as to the long winters and short, almost sunless, summers of Fuegia. The only necessary condition seems to be a moderate amount of moisture; but even as to this there is wonderful contrast between the long rainless summer and slight winter rainfall of Valparaiso, and the tropical rains of Brazil on the one hand, and the continual moisture of Valdivia and Western Patagonia on the other. This is one of the examples which goes to show how much caution should be used in drawing inferences as to the climate of former epochs from deposits of fossil vegetable remains. This instance is doubtless exceptional, but there is some reason to think that what may be called physiological varieties—races of plants which, with little or no morphological change, have become adapted to conditions of life very different from those under which the ancestral form was developed—are far less uncommon than has been generally supposed.
It is to me rather surprising that a shrub so ornamental as the Winter’s bark should not be more extensively introduced on our western coasts. It appears not to resist severe frosts, but in the west of Ireland and the south-west of England it should be a welcome addition to the resources of the landscape gardener. Although voyagers have spoken highly of its virtues as a stimulant and antiscorbutic, it does not appear to have held its ground in European pharmacopeias, and I believe that the active principle, chiefly residing in the bark, has never been chemically determined.
On May 11 I proceeded to Santiago. Mr. Drummond Hay,[22] the popular consul-general, who at this time was also acting as the British chargé d’affaires at the legation at Santiago, was so fully occupied at the consular court that I was able to enjoy little of his society; but he was kind enough to telegraph to the Hotel Oddo at Santiago to secure for me accommodation. With the usual difficulty of effecting an early start, which appears to prevail everywhere in South America, I reached the railway station in time for the 7.45 a.m. train. For some distance the railroad runs near the sea, passing the station of Viña del Mar, where many of the Valparaiso merchants have pretty villas. I was more attracted by the appearance of the country about the following station of Salto, where rough, rocky ground, with clumps of small trees and the channels of one or more streams, promised well for a spring visit. But I was at every turn reminded that I had fallen on the most unfavourable season. After the long six or seven months’ drought the face of the country was everywhere parched, and the only matter for surprise was that there should yet remain some vestiges of its summer garb of vegetation.
RAILWAY TO SANTIAGO.
The direct distance from Valparaiso to Santiago is only about fifty-five miles, but the line chosen for the railway must be fully double that length. The country lying directly between the sea-coast and the capital is broken up by irregular masses, partly granitic and partly formed of greenstone and other hard igneous rocks. These in Europe would be regarded as considerable mountains, as the summits range from six thousand to over seven thousand feet in height, but they nowhere exhibit the bold and picturesque forms that characterize the granite formation in Brazil. On either side of this highland tract two considerable streams carry the drainage of the Cordillera to the ocean. The northern stream, the Rio Aconcagua, bears the same name as the famous mountain from whose snows it draws a constant supply even in the dry season. Some sixty miles further south, the Maipo, draining a larger portion of the Andean range, flows to the coast by the town of Melipilla. The valley of the Maipo offers a much easier, though a circuitous, railway route to Santiago than that chosen by the Chilian engineers, which for a considerable distance keeps to the valley of the Aconcagua. The stream is reached near to Quillota, a place which has given its name to this part of the valley.
Travelling at this season, I was not much struck by the boasted luxuriance of the vegetation of the vale of Quillota; but I could easily understand that the eye of the stranger, accustomed to the arid regions of Peru and Northern Chili, must welcome the comparative freshness of the landscape, in which orchards of orange and peach trees alternate with squares of arable land. Of the few plants that I could make out from the railway car what most attracted my attention was the frequent recurrence of oval masses of dark leaves, much in the form of a giant hedgehog three or four feet in length and half that height, remarkably uniform in size and appearance. The interest was not diminished when I was able, at a wayside station, to ascertain that the plant was a bramble, on which I failed to find flower or fruit, but which from the leaves can be nothing else than a variety of the common bramble, or blackberry, introduced from Europe.
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