. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. Fig. of the lateral bud on the fruit-spur fruitfulness, but on the other hand, starving orgreatly weakening the growth generally gives onlya weak leaf-bud. 25. When fruits or flowers are borne on theend of a spur, the direction of the growth is de-flected, as we have seen (Obs. iii.). Fig. 24 is abearing spur of apple. While the apple is grow- TEE FBCriT-SPUH 27 ing from the terminal bud, a lateral bud (a) isforming to continue the spur the next Fig. of a crab ap
. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. Fig. of the lateral bud on the fruit-spur fruitfulness, but on the other hand, starving orgreatly weakening the growth generally gives onlya weak leaf-bud. 25. When fruits or flowers are borne on theend of a spur, the direction of the growth is de-flected, as we have seen (Obs. iii.). Fig. 24 is abearing spur of apple. While the apple is grow- TEE FBCriT-SPUH 27 ing from the terminal bud, a lateral bud (a) isforming to continue the spur the next Fig. of a crab apple. FlQ. 26Old spur of pear. This is, therefore, a leaf-bud, for it must bethe means of continuing the growth of the spur,and it is not likely to get nourishment enough,— 28 ZHSSOJV^S WITS PLANTS seeing that the apple is the chief concern,—toenable it to develop into a blossom-bud. There is,therefore, a necessary alternation of fruit-bearingbuds and non-fruit-bearing buds in the spur ofan apple tree. 26. A twig of Siberian crab apple, taken inspring, is shown in Fig. 25. Year before last,each of the spurs developed a fruit-bud at itssummit, and last year each of these spurs boreflowers. The proof of this is seen in the scarsleft by the flower stems at a a. None of theseflowers developed into ripe fruits, otherwise someof the scars would have been much larger thanthey are. It was probably for that very reason,—the failure of the fruit,—that the spurs were ableto throw out leafy shoots nearly or quite an inchlong, to continue the growth. Yet, even the
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Keywords: ., bookauthorbai, bookcentury1900, bookdecade1900, booksubjectbotany
