. A class-book of botany, designed for colleges, academies, and other seminaries. Illustrated by a flora of northern, middle, and western states; particularly of the United States north of the Capitol, lat. 38 3/4. Botany; Plants; Plants. ss THE LEAF. 10. Hastate (halbert-shaped), 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 up
. A class-book of botany, designed for colleges, academies, and other seminaries. Illustrated by a flora of northern, middle, and western states; particularly of the United States north of the Capitol, lat. 38 3/4. Botany; Plants; Plants. ss THE LEAF. 10. Hastate (halbert-shaped), 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 veinlets than on the imperfect development of the tissue between 21 a FIG. 30. —12—16, figures of feather-veined leaves, the remainder of radiate-veined. 13. Runcinate (re-uncinate), having the margin extended at the veins into pointed segments, which curve backwards. Ex. Taraxacum. 14. Lyrate (lyre-shaped), with several deep, rounded sinuses, occasioned by deficiency of tissue between the lower veinlets ; water-cress (Sisymbrium). 15. Pinnatifid (feather-cleft), with deep sinuses between the veinlets, separating each margin of the leaf into oblong, par- allel segments. Ex. Lepidium. 16. Sinuate, having deep, rounded openings between the veinlets, seen in the leaves of the white oak. 233. Radiate-veined leaves assume many forms, depending upon the direction of the veins, and the quantity of the inter- vening tissue. Some of them are the following. 17. Palmate (palm-shaped), having five lobes, with as many veins (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. Claremont, N. H. , Manufacturing Co. , S. Ide, agent
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Keywords: ., bookcentury1800, bookdecade, booksubjectbotany, booksubjectplants
