THE KINDS OF VARIATIONS 



229 



two seeds, even from the same fruit, ever produce plants 

 exactly alike. Even though the seedlings resemble each 

 other so closely that people say they are the same, never- 

 theless they will be found to vary in size, number of 

 leaves, shape, or other fea- 

 tures. Figs. 381 and 382 

 illustrate seed -variation. 



374. Variations arising 

 directly from buds, rather 

 than from seeds, are bud- 

 variations, and the most 

 marked of them may be 

 described and named as bud- 

 varieties. We have learned 

 in Chapter V how the horti- 

 culturist propagates plants 



by means Of buds : not One 381. An arbor-vitse tree, from which seeds 



of these buds will reproduce were taken one day 



exactly the plant from which it was taken. We have 

 already discovered (17, 118) that no two branches are 

 alike, and every branch springs from a bud. Bud -varia- 

 tion is usually less marked than seed- variation, however; 



382. The progeny of the 



seeds of the tree shown in Fig. 381. 



No two plants alike. 



yet now and then one branch on a plant may be so un- 

 like every other branch that the horticulturist selects buds 

 from it and endeavors to propagate it. << Weeping" or 

 pendent branches sometimes appear on upright trees; nee- 



