. 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. Ternate leaf. lets, it is called a ternate leaf. (Fig. 90.) If subdivided by three, they are bi-ternate, tri-ternate, &c. (Fig. 91.) 96. Besides the preceding varieties of leaves, which may be considered their common forms, they often assume a variety of modifications which deserve a special attention. These varia- tions arise from a variety of c
. 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. Ternate leaf. lets, it is called a ternate leaf. (Fig. 90.) If subdivided by three, they are bi-ternate, tri-ternate, &c. (Fig. 91.) 96. Besides the preceding varieties of leaves, which may be considered their common forms, they often assume a variety of modifications which deserve a special attention. These varia- tions arise from a variety of causes, which will be noticed under the several examples which we shall adduce. A cohesion of Fisr. Bitemate leaf. parts not unfrequently creates a variation from the usual form. When two leaves unite by their bases, they are connate. When leaves adhere to the stem, forming a kind of wing beneath, then they are said to be decurrent. The bases of the upper leaves of the Caprifolium sempervirens are brought in contact from the unusual development of both systems of the leaf, and they grow together, forming a perfoliate leaf. The same takes "When tripinnate ? If farther divided, what are they called ?—95. What is an unequally pinnate leaf? What is a digitate leaf? When called ternate? Bi-ternate ? Tri-ternate?—96. When are leaves said to be con- nate? When decurrent? When perfoliate ? 3*. 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 Darby, John, 1804-1877. New York, A. S. Barnes
Size: 1717px × 1455px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1850, bookpublisher, booksubjectplants
