In the many other revolving and twining plants observed by me, I never but twice saw the movement reversed; once, and only for a short space, in _Ipomoea jucunda_; but frequently with _Hibbertia dentata_. This plant at first perplexed me much, for I continually observed its long and flexible shoots, evidently well fitted for twining, make a whole, or half, or quarter circle in one direction and then in an opposite direction; consequently, when I placed the shoots near thin or thick sticks, or perpendicularly stretched string, they seemed as if constantly trying to ascend, but always failed. I then surrounded the plant with a mass of branched twigs; the shoots ascended, and passed through them, but several came out laterally, and their depending extremities seldom turned upwards as is usual with twining plants. Finally, I surrounded a second plant with many thin upright sticks, and placed it near the first one with twigs; and now both had got what they liked, for they twined up the parallel sticks, sometimes winding round one and sometimes round several; and the shoots travelled laterally from one to the other pot; but as the plants grew older, some of the shoots twined regularly up thin upright sticks. Though the revolving movement was sometimes in one direction and sometimes in the other, the twining was invariably from left to right; {36} so that the more potent or persistent movement of revolution must have been in opposition to the course of the sun. It would appear that this _Hibbertia_ is adapted both to ascend by twining, and to ramble laterally through the thick Australian scrub.