The elements of botany for The elements of botany for beginners and for schools elementsofbotany00grayuoft Year: [1887] 168. Leaves for Climbing are various in adaptation. True foliage- leaves serve this purpose; as in Gloriosa, where the attenuated tip of a sim- ple leaf (otherwise like that of a Lily) hooks around a supporting object; or in Solanum jasminoides of the gardens (Fig. 172), and in Maurandia, etc., where the leaf-stalk coils round and clings to a support; or in the compound leaves of Clematis and of Adlumia, in whicli both the leaflets and their stalks hook or coil around the su
The elements of botany for The elements of botany for beginners and for schools elementsofbotany00grayuoft Year: [1887] 168. Leaves for Climbing are various in adaptation. True foliage- leaves serve this purpose; as in Gloriosa, where the attenuated tip of a sim- ple leaf (otherwise like that of a Lily) hooks around a supporting object; or in Solanum jasminoides of the gardens (Fig. 172), and in Maurandia, etc., where the leaf-stalk coils round and clings to a support; or in the compound leaves of Clematis and of Adlumia, in whicli both the leaflets and their stalks hook or coil around the support. 169. Or in a compound leaf, as in the Pea and most Vetches, and in Cobsea, while the lower leaflets serve for foliage, some of the uppermost are developed as tendrils for climbing (Fig. 167). In the common Pea this is so with all but one or two pairs of leaflets. 170. In one European Vetch, the leaflets are wanting and the whole petiole is a tendril, while the stipules become the only foliage (Fig. 173). 171. Leaves as Pitchers, or hollow tubes, are familiar in the common Pitcher-plant or Side-saddle Flower (Sarracenia, Fig. 174) of our bogs. Tiiese pitchers are generally half full of water, in which flies and other in- sects are drowned, often in such numbers as to make a rich manure for the plant. More curious are some of the southern species of Sarracenia, which seem to be specially adapted to the capture and destruction of flies and other insects. Fig. 172. Leaves of Solammi jasminoides, the petiole adapted for climbing. Fig. 173. Leaf of Lathyrus Aphaca, consisting of a pair of stipules and a tendril.
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