. 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. INFLORESCENCE. 69 Inflorescence. 112. The manner in which flowers are arranged on the flower-bearing stem, or branch, is termed Inflorescence, or An- thotaxis (anthos, a flower, and taxis, order). From the fact that all floral organs are modifications of leaves, and have the same origin, it follows, of course, that primarily they have the same arrang
. 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. INFLORESCENCE. 69 Inflorescence. 112. The manner in which flowers are arranged on the flower-bearing stem, or branch, is termed Inflorescence, or An- thotaxis (anthos, a flower, and taxis, order). From the fact that all floral organs are modifications of leaves, and have the same origin, it follows, of course, that primarily they have the same arrangement, however modified this arrangement may become in the course of development. The small branch which bears a single flower or bunch of flowers is called the peduncle. When the peduncle bears many flowers, the little organ that supports each flower is called a pedicel. Sometimes the pe- duncle is itself divided, and its divisions are called branches. When the peduncle rises from the earth and bears the flower, it is called a scape. A rachis is a peduncle that proceeds through the center of the inflorescence from the base to the apex. It is also called the axis. When the part that bears the flower, instead of being lengthened into a rachis, forms an enlarged and flattened sur- face at its extremity, on which the flowers are arranged, it is called a receptacle. 113. We may easily reduce all the various forms of inflo- rescence to two primitive types, the determinate and indeter- minate arrangements. By determinate arrangement is meant that kind of inflores- cence which occurs wrhen the primary axis of the plant is ter- minated by a flower (meaning by the primary axis the stem arising from the root). The most simple case of this kind is when the stem bears a single flower, there being no secondary axes. 114. The following are the most common Fig- 107- forms of determinate inflorescence : Corymb is when the flower-bearing branch- es arise from different points of elevation on th
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