. Class-livre de botanique [microforme] : être décrit des structures, la physiologie et la classification des végétaux : avec une flore des États-Unis et du Canada. Botanique ; botanique ; plantes ; plantes ; botanique ; botanique ; plantes ; Botanique. Palnmte vflined-feuilles. Menlspermum Cnnadense, 147. 148, Passiflora cerulea. 149, Broua. Bonetia papyrifera. 150, chêne géranium. Les feuilles sont découpées et jmlmateli/ palmately parted, selon la profondeur des incisions comme décrit ci-dessus. Mais le plus curieux modi- fication est 273. L'pédatiséqué, like a bird's foot, avec la plus petite paire de élargie des veinules, recurv

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. Class-book of botany [microform] : being outlines of the structures, physiology, and classification of plants : with a flora of the United States and Canada. Botany; Botany; Plants; Plants; Botanique; Botanique; Plantes; Botanique. Palnmte-vflined leaves. 147, Menlspermum Cnnadense. 148, Passiflora cerulea. 149, Broua. Bonetia papyrifera. 150, Oak geranium. Leaves are jmlmateli/ cleft and palmately parted, according to the depth of the incisions as above described. But the most peculiar modi- fication is 273. The pedate, like a bird's foot, having the lowest pair of veinlets enlarged, recurved, and bearing each several of the segments (148). 274. The forms of 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 276. The 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 are all equally shortened. The ensiform, or sword-shaped, is also linear, but has its edges vertical, that is, directed upward and downward. 276. If the veins curve, we may have the lanceolate^ elliptical^ or even orbicular forms ; and if the lower curve downward* the cordate, sagittate, etc., all of whicl- are shown in the cuts. The palmate or radiate form is finely illustrated in the palmetto and other paloM, whose large, fan-shaped leaves are appropriately termed flabel- liform (fan-shaped). 277. The leaves of the pine and thb fir tribe (Coniferae) gen- erally are parallel-veined also, and remarkable for their contracted. 151, Ensiform leaves of iris. 152. Aceroseleavesof Pinns. 163, Subnldte leaves of Juniperus com- munis.. 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 work.. Wood, Alphon

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