. Botany for high schools and colleges. Botany. GENERALIZED FORMS. 139 (4.) They always arise in acropetal* order. (5.) They grow more rapidly than the caulome does above their insertion. When they are numerous their rapid growth gives rise to the accumulation of phyllomes known as a, Bud. (6.) The phyllomes of any plant are always of a diiferent form than the caulomes. 177.—General Modes of Branching of Members. There are two general modes of the branching of the members of the plant-body. In the one, the apex of the growing mem- ber divides into two new growing points, from which branches pr

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. Botany for high schools and colleges. Botany. GENERALIZED FORMS. 139 (4.) They always arise in acropetal* order. (5.) They grow more rapidly than the caulome does above their insertion. When they are numerous their rapid growth gives rise to the accumulation of phyllomes known as a, Bud. (6.) The phyllomes of any plant are always of a diiferent form than the caulomes. 177.—General Modes of Branching of Members. There are two general modes of the branching of the members of the plant-body. In the one, the apex of the growing mem- ber divides into two new growing points, from which branches proceed; this is the Dichotomous mode of branching (Fig. f i. Fig. 120.—Diagrams of cymose monopodial branching. A and B, scorpiold cymes; C, forked cymose monopodium, the compound or falsely dichotomous cyme (called also the di<^b(isium) • D, helicoid cyme.—^Af ter Sachs. 118). In the other, the new growing points arise as lateral members, while the original apex of the parent stem still retains its place and often its growth ; this is the Mono- podial mode of branching (Fig. 119). Both modes are sub- ject to many modifications, the most important of which are briefly indicated in the following table : A.—DICHOTOMOUS. 1. Forked dichotomy, in whicli both branches of each bifurcation are equally developed (Fig. 118, A). * Acropt-tal, tending toward tlie summit ; frim the Greek aupa, summit, and -ireTau. to move toward.. 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 work.. Bessey, Charles E. (Charles Edwin), 1845-1915. New York : H. Holt