. A class-book of botany, designed for colleges, academies, and other seminaries where science is taught ... Illustrated by a flora of the northern United States particularly New England and New York. Botany; Plants -- United States; Plants -- Canada. S3 THE LEAF. 10. Hastate (halbert-shapecl), hollowed out at the base and .sides. Ex. Bitter-sweet. 11. Sagittate (arrow-shaped), with pointed, descending lobes at base. Ex. Polygonum sagittatum; Sagittaria; &c. 12. Reniform (kidney-shaped), broad, rounded at the apex, and hollowed at the base, as in the Asarum Canadense. a. The following form
. A class-book of botany, designed for colleges, academies, and other seminaries where science is taught ... Illustrated by a flora of the northern United States particularly New England and New York. Botany; Plants -- United States; Plants -- Canada. S3 THE LEAF. 10. Hastate (halbert-shapecl), hollowed out at the base and .sides. Ex. Bitter-sweet. 11. Sagittate (arrow-shaped), with pointed, descending lobes at base. Ex. Polygonum sagittatum; Sagittaria; &c. 12. Reniform (kidney-shaped), broad, rounded at the apex, and hollowed at the base, as in the Asarum Canadense. a. The following forms depend less upon the proportion of the veins than upon the imperfect development of the tissue between FIG. 30.— 12 —16, figures of feather-veined leaves, the remainder of radiale-veiiied. 13. Runcinatc (re-uncinate), having the margin extended at the veins into pointed segments, which curve backwards. Ex. Taraxacum. 14. Lyrate (lyi-e-shaped), with several deep, rounded sinuses, occasioned by deficiency of tissue between the lower veins. Ex. water-cress (Sisymbrium). 15. Pinnatifid (feather-cleft), with deep sinuses between all the veins, separating each margin of the leaf into oblong, par- allel segments. Ex. Lepidium. 16. Sinuate, having deep, rounded openings between the M?ins, as seen in the leaves of the white oak. 233. Eadiate-veined leaves assume many forms, depending upon the direction of the veins, and the quantity of the inter- Acning tissue. Some of them are the following. 17. Palm ate (palm-shaped), having five lobes, with as many ncn-es (227) separated by deep divisions, so as to resemble the palm of the hand with the fingers. Ex. 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 Wood, Alphonso, 1810-1881. Boston, Crocker & Brewster
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Keywords: ., bookcentury1800, bookdecade1840, bookpublisher, booksubjectbotany
