. A class-book of botany, designed for colleges, academies, and other seminaries ... Illustrated by a flora of the northern, middle, and western states; particularly of the United States north of the Capitol, lat. 38 3/4. Botany; Plants -- United States; Plants -- Canada. VEINt ..1. In our description of individual forms, we shall select only the most i-emark- al)lc, leaving others for explanation in the Glossary. The most obvious arrangement is that which is founded npon the modes of the velning; but it should be premised that ditferent forms of venation often give rise to the same outline. 2
. A class-book of botany, designed for colleges, academies, and other seminaries ... Illustrated by a flora of the northern, middle, and western states; particularly of the United States north of the Capitol, lat. 38 3/4. Botany; Plants -- United States; Plants -- Canada. VEINt ..1. In our description of individual forms, we shall select only the most i-emark- al)lc, leaving others for explanation in the Glossary. The most obvious arrangement is that which is founded npon the modes of the velning; but it should be premised that ditferent forms of venation often give rise to the same outline. 232. Of FEATHER-VEINED leavcs, the following(jorms depend on the length of the veinlets m relation to each other, and to the mil! vein.) If the middle veailets are longer than the rest, the leaf will be 1, ^rbicular (roundish), as in Pyrola rotundifolia.^). FIG. 29. â Figures of feather-veined leaves. The numbers refer to paragraphs, a, deheta Seaf of Populus. "^ 2. {Elliptical (oval), as in Lespedeza prostrata? or 2/Oblong (narrow-oval). Ex. Arenaria lateriflora.) If the lower veinlets are longer than the rest,the leaf will be A.[Ovate (egg-shaped), as in the Mitchella repens,ior 5. ^anceolatc (lance-shaped), narrow, and tapering to each end. Ex. sweet-wilham. â When the vehis are most developed towards the summit of (he leaf, it becomes 6. Obovate (inversely egg-shaped), as in the walnut; or 7. Spathulate (shaped like a spathula), as in the daisyj Again, if the lowest veinlets are longest, sending ofFveinulets backwards, the leaf will be 8. (Cordate (heart-shaped), like the fcrm, with a hollow (sinus) at the base, as in the lilac.^ 9. fAiiriculate, ha\ ear-shaped lobes at the base. Ex, sage. ). 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. , Ma
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Keywords: ., bookcentury1800, bookdecade1840, booksubjectbotany, bookyear1847
