. 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. PARALLEL-VEINED LEAVES. 89 18. Digitate (finger-shaped), having narrower and deeper segments than the pahiiate, as in the hemp. 19. Pedate (foot-shaped). The same as palmate, except that the two lateral lobes are themselves subdivided, as in the peony and passion-flower. 20. Laciniate (gashed), the nei-ves and veins all separate, as if the blade
. 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. PARALLEL-VEINED LEAVES. 89 18. Digitate (finger-shaped), having narrower and deeper segments than the pahiiate, as in the hemp. 19. Pedate (foot-shaped). The same as palmate, except that the two lateral lobes are themselves subdivided, as in the peony and passion-flower. 20. Laciniate (gashed), the nei-ves and veins all separate, as if the blade were cut and gashed with scissors. Ex. Ranunculus. 21. Peltate (shield-like)-, the nerves radiating in all directions, and all connected by intervening tissue. This form is gener- ally also orbicular, and appears to result from the union of the base-lobes. Ex. Podophyllum peltatum, Tropeolun^, Brasenia. 22. Rcmform, broad-ovate, broad-cor date, &c., may also rcsuh from the radiate veining. 234. The form of parallel-veined leaves is less diversified than that of the preceding classes, being 23. Linear, when the veins (or nerves) are straight, as in the grasses. This form may also occur in the feather-veined leaf by an equal development of all the veins, as in the Linaria vul- firaris, & FIG. 31. 23, 24, 25, figures of leaves with parallel veins ; 2 —10. margins of leaves. 24. Oval, lanceolate, oblong, or some kindred form, when the veins are cur\^ed, as in Carex, Cypripedium, Orchis, &c., or it may be 25. Cordate, when some of the lower veins are cun^ed back- wards and then upwards, as in Pontaderia, and even sagittate, when they are directed downwards at the base, as in the Sagit- taria. 8*. 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 & Brew
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Keywords: ., bookcentury1800, bookdecade1840, bookpublisher, booksubjectbotany
