. Eine Geschichte des Pflanzenreiches; die Physiologie der Pflanzen, mit deren Einsatz für den Menschen und die Niedere Tiere und ihre Anwendung in der Kunst, produziert, und die heimische Wirtschaft. Illus. Durch mehrere hundert Figuren. Botanik; Botanik, wirtschaftlichen; 1855. tlie Blatt, zwischen dem Ventilschaft und der Blattstiel, in welchem Fall sie sagte zu axillar, wie in Melianthm Major. Die Nebenblätter sind sehr unterschiedlich in ihrer Beschaffenheit und Konsistenz. Auf diese Weise können h^foliaceous, oder ähnliche Blätter, wie in der Kom-mon agrimony; membranöse wie in Bild und Magnolia; spinesceni oder dornig, wie in der jujube und die Gans

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. A history of the vegetable kingdom; embracing the physiology of plants, with their uses to man and the lower animals, and their application in the arts, manufactures, and domestic economy. Illus. by several hundred figures. Botany; Botany, Economic; 1855. tlie leaf, between the stem and the petiole, in which case they are said to be axillar, as in Melianthm major. The stipules vary greatly in their nature and consistence. Thus they may h^ foliaceous, or similar to leaves, as in the com- mon agrimony; membranous as in the fig and magnolia; spinesceni, or thorny, as in the jujube and the gooseberry. With respect to duration, some fall off before the leaves ; as in the common fig and the lime. Others are merely cadticous, or fall at the same time as the leaves, as is the case in the generality of plants. Lastly, there are others vi^hich continue for a longer or shorter time after the leaves have fallen; as in the jujube, the goosebeiTy, &c. The use of the stipules appears to be to pro- tect the leaves before their expansion, as is evi- dently shown by their relative disposition in the buds of some families of plants. The Tendrils or Cirrlii. These are cer- tain appendages, fig. a, b, generally filamentous, situated on different parts of the plant, simple or branched, and which twist themselves, in a spiral form, around neighbouriug bodies, thus serving to support the stem of weak and ilimbing plants. " * Tendrils are in all cases abortive organs. Some- times, they are floral peduncles, which have been greatly elongated, as in the vine, and are occa- sionally seen to bear flowers and fruits; some- times they are fornied of petioles; and at other times they are altered stipules, or even abortive twigs. Not unfrequently, the leaves themselves are rolled up at the extremity, and thus consti- tute a kind of tendrils, as in the pink. The re- lative position of the tendrils deserves to be care- fully attended to, as it indicates the organ for which they are substit

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• bookcentury1800
• bookdecade1850
• booksubjectbo
• booksubjectbotany