. Botany; an elementary text for schools. Plants. FOKM OF LEAVES 93. 130. Digitately parted leaves of begoi: same is said of flowers and fruits. The blade of a sessile leaf may partly or whollj^ surround the stem, when it is said to be clasping (Fig. 132). In some cases the leaf runs down the stem, forming a wing: such leaves are said to be de- current (Fig. 133). When opposite sessile leaves are joined by their bases, they are said to be connate (Fig. 134). 196. Leaflets may have one or all of these three parts, but the stalks of leaflets are called petiolules and the stipules of leaflets are
. Botany; an elementary text for schools. Plants. FOKM OF LEAVES 93. 130. Digitately parted leaves of begoi: same is said of flowers and fruits. The blade of a sessile leaf may partly or whollj^ surround the stem, when it is said to be clasping (Fig. 132). In some cases the leaf runs down the stem, forming a wing: such leaves are said to be de- current (Fig. 133). When opposite sessile leaves are joined by their bases, they are said to be connate (Fig. 134). 196. Leaflets may have one or all of these three parts, but the stalks of leaflets are called petiolules and the stipules of leaflets are called stipels. The leaf of the garden bean has leaflets, petiolules, and stipels. 197. The blade is usually attached to the petiole by its lower edge. In pinnate- veined leaves, the petiole seems to continue through the leaf as a midrib (Fig. 124). In some plants, however, the petiole joins the blade inside or beyond the margin (Figs. 126, 135). Such leaves are said to be peltate or shield- shaped. This mode of attach- ment is particularly common in floating leaves (e. g., the 132. Clasping leaf water Hlics). Pcltatc leaves wi aster. ^^,^ usuall}^ digitate-vcincd. 198. SHAPE.—Leaves and leaflets are infinitely variable in shape. Names have been given to some of the more definite or regular shapes. These names are a part of the language of botany. These names represent ideal or typi-. 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 Bailey, L. H. (Liberty Hyde), 1858-1954. New York, Macmillan Co.
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