. Class-book of botany : being outlines of the structure, physiology, and classification of plants ; with a flora of the United States and Canada . Botany; Botany; Botany. Palmato-vdned leaves. 147, Menispermum Canadense. 148, Passifiora cerulea. 149, Broiia- sonetia papyritiera. 150, Oak geranioin. Leaves are 2'0,iinaiel7/ cleft and palmatehj parted, according to the depth of the incisions as ahove described. But the most peculiar modi- 153 151 162 fication is 273. The pbdatb, like a bird's foot, having the lowest pair of veinlets enlarged, recurved, and bearing each several of the segments (
. Class-book of botany : being outlines of the structure, physiology, and classification of plants ; with a flora of the United States and Canada . Botany; Botany; Botany. Palmato-vdned leaves. 147, Menispermum Canadense. 148, Passifiora cerulea. 149, Broiia- sonetia papyritiera. 150, Oak geranioin. Leaves are 2'0,iinaiel7/ cleft and palmatehj parted, according to the depth of the incisions as ahove described. But the most peculiar modi- 153 151 162 fication is 273. The pbdatb, like a bird's foot, having the lowest pair of veinlets enlarged, recurved, and bearing each several of the segments (148). 274. The forms op the parallel- veined LEAVES are remarkable for their even, flowing outlines, diversified solely by the direction and curvature of the veins. When the veins are straight the most com- mon form is 275. Tfe LINEAR, long and narrow, with parallel margins, like the leaves of the grasses—a form which may also occur in the pinnate-veined leaf, when the veinlets arc all equally shortened. The ensiform, or sword-shaped, is also linear, but has ite edges vertical, that is, directed upward and downward. 276. If toe veins curve, we mayhavp the lanceolate, elliptical, or even orbicular forms; and if the lower curve downward, the cordate, sagittate, etc., all of which are shown in the cuts. Tho palmato or radiate form is finely illustrated in the palmetto and other palms, whose large, fan-shaped leaves are appropriatelj- termed flalelr liform (fan-shaped). ' 277. The leaves of the pine and the fir ((^oniforai) gen- erally are parallel-veined also, and remarkable for their contracted. 151, Knsiform leaves of iris. 152, Ac^roKn leaves of Finns. 153, Subulate leaves of Juniperus cooi- 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. New York : A. S. Barnes &a
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Keywords: ., bookcentury1800, bookdecade1860, bookpublisher, booksubjectbotany
