About 600 feet above sea-level, looking across the Family Group to the great bulk of Hinchinbrook, there is an irregular precipice, half concealed by the trees and plants that decorate its seams and crevices and spring up about its cool and ever gloomy base. During the greater part of the year water trickles down the grey face of the rock in narrow gleaming bands, and wheresoever are the faintest footholds there is a flower--mauve in its modesty. It is not common enough to possess a familiar name, but botanists have called it BAEA HYGROSCOPICA, for it is always found near water, invariably pure, cool, fern-filtered mountain water. From the damp rock the roots of the plant, matted and interwoven, may be peeled off in a thin layer, for the plant is epiphytical, depending as much upon heat, moisture and light as on any constituents of the soil for sustenance. When the season is exceptionally dry, the thick, soft wrinkled leaves become parched and shrivelled; but a shower restores their vigour and lovely, tender green, and fresh flowers slightly resembling the violet, but borne on scapes 6 or 8 inches long, bloom within a few hours of the revivification of the plant. In moist seasons the plant, true to its hygrometic character, continuously blooms, and while it braves the hottest sun on the bare places of the burning rock as long as its roots find moist spots, it will also be found in the shade below, where the flowers are richer in colour, more of purple than mauve, and, rarely, pure white. Generally the plant depends upon others or cracks or crevices in rock for foothold. It shares the grasp the spongy moss may take on the slippery surface, or when the root, thin as whipcord, of a certain fig-tree has crept across the face of the grey rock forming a ridge or barricade against which decayed vegetation accumulates, there the BAEA flourishes, displaying an indeterminate line of mauve flowers above oval, crimpled leaves. Mauve, green and grey--the mauve of the Victorian age, the green of the cowslip, the grey of glistering, weathering granite. The whole of the rock face is a study. Grasping with greedy white talons a piece of decaying wood is one of the prettiest of the more common orchids, DENDROBIUM SMILIAE which produces short spikes of waxy flowers, pink tipped with green; the creeping, sweet-scented, BULBOPHYLLUM BAILEYI, with greenish-yellow flowers spotted with purple, and the commonest of the dendrobiums (UNDULATUM) revel here.