. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. Pig. 49. THE OPENING OF THE BUDS, CONTINUED 51 maple (Fig. 50) shows the bud-scales (1, 2, 3, 4)greatly enlarging, and the arrangement of themis peculiar. These great green scales suggestleaves. Fig. 51 is asprig of black it is seen thatsome of the scalesactually produce smallleaf-blades on theirtips. It is also no-ticeable that there is agradual progression insize of leaves, as thereis in the apple (). Now let the pu-pil examine the open-ing buds of the va-rious plants whi
. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. Pig. 49. THE OPENING OF THE BUDS, CONTINUED 51 maple (Fig. 50) shows the bud-scales (1, 2, 3, 4)greatly enlarging, and the arrangement of themis peculiar. These great green scales suggestleaves. Fig. 51 is asprig of black it is seen thatsome of the scalesactually produce smallleaf-blades on theirtips. It is also no-ticeable that there is agradual progression insize of leaves, as thereis in the apple (). Now let the pu-pil examine the open-ing buds of the va-rious plants which hemeets, and he willsoon come to the con-clusion that bud-scalesare only modifiedleaves. Or, to statethe case more accu-rately, bud-scales and leaves are only difEerentforms of one kind of plant member. 53. We have concluded that bud-scales arehomologous with leaves because we have seen. Fig. shoot of Norway maple. 52 ZESSOJfS WITH PLANTS gradations from the one to the other. There isanother method of determining if this conclusion issound. We have already found that leaves bear definite relations tobuds, and, there-fore, to the shoots(whether of leavesor of flowers) whichspring from thebuds. Fig. 52 is thewell known terminalbud of the rhodo-dendron. If thepupil has the oppor-tunity, he should ex-amine the flowercluster of this plantor of one of thelarge-bud will find a flower *springing from theaxil of each bud-scale. He will read-ily guess the significance of this are two direct methods of determining themorphology of any part,—by the evidences of itsform, and by its position with reference toother parts; and to these may be added a third
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Keywords: ., bookauthorbai, bookcentury1900, bookdecade1900, booksubjectbotany
