. The elements of botany embracing organography, histology, vegetable physiology, systematic botany and economic botany ... together with a complete glossary of botanical terms. Botany. 30 ORGANOGRAPHY. instance, the numerator and denominator of any fraction may be obtained by adding respectively the numerators and denominators of the two preceding fractions. The numerator of any fraction is the same as the denominator of the second preceding fraction. Spirals may be con- structed which will show the arrangements indicated by the several fractions, and exhibit at the same time the angular dive
. The elements of botany embracing organography, histology, vegetable physiology, systematic botany and economic botany ... together with a complete glossary of botanical terms. Botany. 30 ORGANOGRAPHY. instance, the numerator and denominator of any fraction may be obtained by adding respectively the numerators and denominators of the two preceding fractions. The numerator of any fraction is the same as the denominator of the second preceding fraction. Spirals may be con- structed which will show the arrangements indicated by the several fractions, and exhibit at the same time the angular divergence of the leaves (Figs. 30-33). Such a view may actu- ally be obtained by looking from above at the shoot in the direction of its axis. 33. If a num- ber of leaf-buds be dissected it will be found that a difference prevails in regard to the vernation (Lat. ver, Spring), or the disposition of the scales or leaves in the bud. The arrangement of these leaves in reference to each other is, in general, like their arrangement on the stem, but more will be said of this hereafter, when treating of flower-buds. Each separate leaf is generally bent or folded or rolled up. When the upper part is bent down upon the lower ( Tulip-tree)' it is said to be inflexed, or recline. When the two halves are folded together, face to face, it is conduplicate Figs. 30-33. Spirals showing angular divergence of leaves, J, J, J, |.. 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 Kellerman, William Ashbrook, 1850-1908. Philadelphia, J. E. Potter and Company
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1883
