Text-book of structural and physiological botany . Fig. 161.—Hastate leafoi Rujnex acetosa. Fig. 162.—Peltate leaf of Tfopceobmi, pointed at the apex, and have also two pointed lobes at thebase ; the incision bounded by these latter is acute-angled The External Form of Plants, 97 in the former, very obtuse-angled in the latter case. In thepeltate \t^i{Y\g. 162), the petiole springs from the middle ofthe lamina [as in Hydrocotyle or TropcEohcm\. In describing the form of the base of the leaf, of thepart of it which is attached to the stem or petiole, someof the same terms are appHcable as
Text-book of structural and physiological botany . Fig. 161.—Hastate leafoi Rujnex acetosa. Fig. 162.—Peltate leaf of Tfopceobmi, pointed at the apex, and have also two pointed lobes at thebase ; the incision bounded by these latter is acute-angled The External Form of Plants, 97 in the former, very obtuse-angled in the latter case. In thepeltate \t^i{Y\g. 162), the petiole springs from the middle ofthe lamina [as in Hydrocotyle or TropcEohcm\. In describing the form of the base of the leaf, of thepart of it which is attached to the stem or petiole, someof the same terms are appHcable as those already defined ;as, for example, cordate, reniform, hastate, &c. There aresome others also in use. Thus the base may be cuneate orwedge-shaped (Fig. 163), when it passes gradually into the.
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