Vietnam or Thailand ? Vote for the TOP Country of the Week !
The keys of the sycamore, to take a single instance, when detached from the tree in autumn, fall spirally through the air owing to the twist of the winged arm, and are carried so far that, as every gardener knows, young sycamore trees rank among the commonest weeds among our plots and flower-beds.
The petioles of the perfect leaves of Tropaeolum tricolorum, as well as the tendril-like filaments of the plants whilst young, ultimately move towards the stem or the supporting stick, which they then clasp. These petioles and filaments also show some tendency to contract spirally. The tips of the uncaught leaves of the Gloriosa, as they grow old, contract into a flat spire or helix.
That is, she formed a thin rope of soft clay, which, like the wisp of the basket, she coiled around and around a center to form the bottom, then spirally upon itself, now widening the diameter of each coil more and more, then contracting as she progressed upward until the desired height and form were attained.
The central core of the cable that part by which the electric force or fluid was to pass from the Old World to the New, and vice versa, was made of copper. It was not a solid, single wire, but a strand composed of seven fine wires, each about the thickness of a small pin. Six of these wires were wound spirally round the seventh.
I mean to call it 'The Rajah's Rest. Behind, great ferns and a mossy bank; in front, Sardanapalus, after tiffin, rolled spirally round, and taking his siesta." This meeting was a long-wished-for occasion. Elma had never before met a real live painter.
Ultimately the lateral branches contract spirally, but not the middle or main stem. Lathyrus aphaca. This plant is destitute of leaves, except during a very early age, these being replaced by tendrils, and the leaves themselves by large stipules. It might therefore have been expected that the tendrils would have been highly organized, but this is not so.
An attached tendril, on the other hand, contracts spirally, and thus becomes highly elastic, so that when the main foot-stalk is pulled the strain is distributed equally between all the attached discs. For a few days after the attachment of the discs, the tendril remains weak and brittle, but it rapidly increases in thickness and acquires great strength.
There is no difficulty in understanding how a spirally twining plant could graduate into a simple root-climber; for the young internodes of Bignonia Tweedyana and of Hoya carnosa revolve and twine, but likewise emit rootlets which adhere to any fitting surface, so that the loss of twining would be no great disadvantage and in some respects an advantage to these species, as they would then ascend their supports in a more direct line.
There was still another fortress on the rising ground which commanded the town, built of hewn stone, and encompassed by three circular walls, or rather one and the same wall, which wound up spirally around it.
Over all flutter myriads of light-yellow butterflies, mostly skimming along the surface, dipping and oscillating, giving a curious animation to the scene. The beautiful, spiritual insects! straw-color'd Psyches! Occasionally one of them leaves his mates, and mounts, perhaps spirally, perhaps in a straight line in the air, fluttering up, up, till literally out of sight.
Word Of The Day