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On the hill-side were creeping brambles, lovely yellow, purple, pink, and white primroses, white-flowered Thalictrum and Anemone, berberry, Podophyllum, white rose, fritillary, Lloydia, etc. These formed a rank and dense herbaceous, mostly annual vegetation, six feet high, bound together with Cuscuta, climbing Leguminosae, and Ceropegia.
This swaying movement was certainly due to the movement of the lower internodes, which, however, had not force sufficient to swing the whole shoot round the central supporting stick. The case of another Asclepiadaceous plant, viz., Ceropegia Gardnerii, is worth briefly giving.
It appeared to me probable that twining plants with very long revolving shoots would be able to ascend thick supports; accordingly I placed Ceropegia Gardnerii near a post 6 inches in diameter, but the shoots entirely failed to wind round it; their great length and power of movement merely aid them in finding a distant stem round which to twine.
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