The ground too has its creepers, and some of them very curious. The most remarkable are the ratans, belonging to the Calamus genus of palms. Of these I have seen a specimen 250 feet long and an inch in diameter, without a single irregularity, and no appearance of foliage other than the bunch of feathery leaves at the extremity.
The strength of these slender plants is so extreme, that the natives employ them with striking success in the formation of bridges across the water-courses and ravines. One which crossed the falls of the Mahawelliganga, in the Kotmahe range of hills, was constructed with the scientific precision of an engineer's work. It was entirely composed of the plant, called by the natives the "Waywel," its extremities fastened to living trees, on the opposite sides of the ravine through which a furious and otherwise impassable mountain torrent thundered and fell from rock to rock with a descent of nearly 100 feet. The flooring of this aerial bridge consisted of short splints of wood, laid transversely, and bound in their places by thin strips of the waywel itself. The whole structure vibrated and swayed with fearful ease, but the coolies traversed it though heavily laden; and the European, between whose estate and the high road it lay, rode over it daily without dismounting.
Another class of trees which excites the astonishment of an European, are those whose stems are protected, as high as cattle can reach, by thorns, which in the jungle attain a growth and size quite surprising. One species of palm[1], the _Caryota horrida,_ often rises to a height of fifty feet, and has a coating of thorns for about six or eight feet from the ground, each about an inch in length, and so densely covering the stem that the bark is barely visible.
[Footnote 1: This palm I have called a _Caryota_ on the authority of Dr. GARDNER, and of MOON'S _Catalogue_; but I have been informed by Dr. HOOKER and Mr. THWAITES that it is an _Areca_. The natives identify it with the Caryota, and call it the "katu-kittul."]
A climbing plant, the "Kudu-miris" of the Singhalese[1], very common in the hill jungles, with a diameter of three or four inches, is thickly studded with knobs about half an inch high, and from the extremity of each a thorn protrudes, as large and sharp as the bill of a sparrow-hawk. It has been the custom of the Singhalese from time immemorial, to employ the thorny trees of their forests in the construction of defences against their enemies. The _Mahawanso_ relates, that in the civil wars, in the reign of Prakrama-bahu in the twelfth century, the inhabitants of the southern portion of the island intrenched themselves against his forces behind moats filled with thorns.[2] And at an earlier period, during the contest of Dutugaimunu with Elala, the same authority states, that a town which he was about to attack was "surrounded on all sides by the thorny _Dadambo creeper_ (probably Toddalia aculeata), within which was a triple hue of fortifications, with one gate of difficult access."[3]