. Foundations of botany. Botany; Botany. 136 FOUNDATIONS OF BOTANY. Fig. lOO. — Parallel- TeinedLeafofSol. omon's Seal. bristle-shaped objects at the base of the leaf, as in the apple leaf (Fig. 98), sometimes as leaf-like bodies, for example in the pansy (Fig. 99), and in many other forms, one of which is that of spinous appendages, as shown in the common locust (Fig. 103). 145. Parallel-Veined Leaves. — The leaves of many great groups of plants, such as the lilies, the sedges, and the grasses, are commonly parallel-veined, that is, with the veins running nearly parallel, lengthwise through t
. Foundations of botany. Botany; Botany. 136 FOUNDATIONS OF BOTANY. Fig. lOO. — Parallel- TeinedLeafofSol. omon's Seal. bristle-shaped objects at the base of the leaf, as in the apple leaf (Fig. 98), sometimes as leaf-like bodies, for example in the pansy (Fig. 99), and in many other forms, one of which is that of spinous appendages, as shown in the common locust (Fig. 103). 145. Parallel-Veined Leaves. — The leaves of many great groups of plants, such as the lilies, the sedges, and the grasses, are commonly parallel-veined, that is, with the veins running nearly parallel, lengthwise through the blade, as shown in Fig. 100, or with parallel veins pro- ceeding from a midrib and thence extend- ing to the margin, as shown in Fig. 101. 146. Occurrence of Netted Veining and of Parallel Veining. — The student has already, in his experiments on germina- tion, had an opportunity to observe the difference in mode of veining between the leaves of some dicotyledonous plants and those of monocotyledonous plants. This difference is general throughout these great groups of flowering plants. What is the difference? The polycotyledonous pines, spruces, rg. loi. — Parallel and other coniferous trees have leaves veSSTmi^ingftom with but a single vein, or two or three ™drib to margin. parallel ones, but in their case the veining could hardly be other than parallel, since the needle-like leaves are so. 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 Bergen, Joseph Y. (Joseph Young), 1851-1917; Eastwood, Alice, 1859-1953. Boston, Ginn & Co.
Size: 1201px × 2081px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1901
