. Elements of botany. Botany; Botany. 92 ELEMENTS OF BOTANY. the midrib (in pinnately veined ones). Such divided leaves are shown in Figs. 69 and 70. In still other leaves, known as compound leaves, the petiole, as shown in Fig. 75, or the midrib, as shown in Fig. 76,-bears what look to be separate leaves. These differ in their nature and mode of origin from the portions of the blade of a divided leaf. One result of this difference appears in the fact. Fig. 75. — Tlie Fall ol the Horse-phestnut Leaf. that some time before the whole leaf is ready to fall from the tree or other plant in autumn,
. Elements of botany. Botany; Botany. 92 ELEMENTS OF BOTANY. the midrib (in pinnately veined ones). Such divided leaves are shown in Figs. 69 and 70. In still other leaves, known as compound leaves, the petiole, as shown in Fig. 75, or the midrib, as shown in Fig. 76,-bears what look to be separate leaves. These differ in their nature and mode of origin from the portions of the blade of a divided leaf. One result of this difference appears in the fact. Fig. 75. — Tlie Fall ol the Horse-phestnut Leaf. that some time before the whole leaf is ready to fall from the tree or other plant in autumn, the separate portions or leaflets of a compound leaf are seen to be jointed at their attachments, just as whole leaves are to the part of the stem from which they grow. In Fig. 76 the horse-chestnut leaf is shown at the time of falling, with some of the leaflets already 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. Boston, Ginn
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1896
