. Botany of the southern states. In two parts. Part I. Structural and physiological botany and vegetable products. Part II. Descriptions of southern plants. Arranged on the natural system. Preceded by a Linnaean and a dichotomous analysis. Plants. LEAVES. 57 still further and form the tripinnate leaf, as in the Thalictrum (Fig. 87), and it even exceeds this subdivision when the terra supra-decompound is applied to them, no matter how far the divisions may extend. When the midrib is terminated by a leaflet, the leaf is said to be unequally pinnate. (Fig. 88.) The radiated form of reticulat
. Botany of the southern states. In two parts. Part I. Structural and physiological botany and vegetable products. Part II. Descriptions of southern plants. Arranged on the natural system. Preceded by a Linnaean and a dichotomous analysis. Plants. LEAVES. 57 still further and form the tripinnate leaf, as in the Thalictrum (Fig. 87), and it even exceeds this subdivision when the terra supra-decompound is applied to them, no matter how far the divisions may extend. When the midrib is terminated by a leaflet, the leaf is said to be unequally pinnate. (Fig. 88.) The radiated form of reticulated leaves often assumes the compound structure, as in the iEsculus, Lupinus, Clover, <fcc. (Fig. 63), and are then called digitate. If there are three leaf- Fig. Ternate leaf. lets, it is called a ternate leaf. (Fig. 90.) If subdivided by three, they are bi-ternate, tri-ternate, &c. (Fig. 91.) 96. Besides the preceding varieties of leaves, which may be considered their common forms, they often assume a variety of modifications which deserve a special attention. These varia- tions arise from a variety of causes, which will be noticed under the several examples which we shall adduce. A cohesion of Fisr. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Darby, John, 1804-1877. New York, A. S. Barnes
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