Elementary botany . es willshow all gradations fromsimple leaves with plane edges to those which are cut or divided, asin compound leaves, and the lobes are often variously indented. 758. Divided, or compound leaves.—The rose, sumac, elder,hickory, walnut, locust, pea, clover, American creeper, etc., areexamples of divided or compound leaves. The former are pin-nately compound, and the latter are palmately compound. Theleaf of the honey-locust is twice pinnately compound or bipin-nate, and some are three times pinnately compound.* It is * Some of the different terms used to express the kinds o
Elementary botany . es willshow all gradations fromsimple leaves with plane edges to those which are cut or divided, asin compound leaves, and the lobes are often variously indented. 758. Divided, or compound leaves.—The rose, sumac, elder,hickory, walnut, locust, pea, clover, American creeper, etc., areexamples of divided or compound leaves. The former are pin-nately compound, and the latter are palmately compound. Theleaf of the honey-locust is twice pinnately compound or bipin-nate, and some are three times pinnately compound.* It is * Some of the different terms used to express the kinds of compoundleaves are as follows: Unifoliate (for a single leaflet, as in orange and lemon where the com-pound leaf is greatly reduced and consists of one pinna attached to thepetiole by a joint). Bifoliate for one with two leaflets; trifoliate for onewith three leaflets, as in the clover; piurifoliate for many leaflets. Oddpinnate for a pinnate leaf with one or more pairs of leaflets and one oddleaflet at the Fir. leaves of oak forming a mosaic. 390 RELATION TO ENVIRONMENT.
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Keywords: ., bookauthoratk, bookcentury1900, bookdecade1900, booksubjectbotany
