II] EXAMPLES OF LEAF-APEX 29 



Examples of acute apex occur in 



Examples of obtuse apex occur in 

 Robinia Crowberry Sea Buckthorn 



Loiseleuria White Beam ^ m g 



Pear Bog Myrtle Aspen 



Cotoneaster Salix herbacea. 



The ret use apex occurs in 



Robinia Cowberry Salix retusa 



Silver Fir Alder S. reticulata 



Box Bog Whortleberry. 



The mucronate apex may be found in 

 Laburnum Cotoneaster Douglas Fir 



Cypress Robinia Spruce 



Fly Honeysuckle. 



Examples of leaves serrate in various degrees occur in 

 Elder Mulberry Virginian Creeper 



Ash Rowan Horse-chestnut 



