114 TERMINAL BUDS [CH. 



bud more or less conspicuously the larger, except where 



flower-buds occur, are 



Barberry Azalea Walnut 



Ash Rowan Mulberry 



Fig Black Poplar Beam 



Wayfaring Tree Horse-chestnut Pear 



Maples Sycamore. 



Even in many of the cases where all the buds appear 

 approximately equal in size, careful examination of strong 

 shoots usually shows that the terminal bud is the larger. 



But a further point arises in connection with the 

 terminal bud. In very many plants with the twigs end- 

 ing in a bud, close investigation shows two scars beneath 

 it, the characters of which enable us to say with certainty 

 that they are not both leaf-scars. The Lime affords an 

 excellent example. At the base of the bud, on one side 

 of the apex of the twig, there is a scar which marks 

 where the last leaf of the shoot was attached, and in 

 the autumn we find a leaf still there : immediately oppo- 

 site is a smaller scar, in place of which we find a bud 

 in the autumn, before the leaves have fallen. The ap- 

 parent terminal bud of the Lime-twig is therefore really 

 an axillary and therefore properly a lateral bud which 

 has usurped the place of the true terminal bud, the latter 

 having died off and left its scar. 



Such pseudo-terminal buds are very common. They 

 occur in 



Birch Lime Aspen 



Black Poplar White Poplar Hazel 



Elms Willows Hornbeam 



Beech Oaks. 



When in the following year the pseudo- terminal bud 

 develops into a shoot, the latter continues practically 



