24 EXAMPLES OF LEAF-OUTLINE [CH. 



base being the broader, as in the leaves of the Daisy, 

 Alder, or the petals of a Dog-rose, &c. (Fig. 8), and the 

 terms spathulate (1), obovate (2), and obcordate (3) are in 

 general use. 



The foregoing simple shapes, which may be regarded 

 as fundamental simply in the sense that the outline 

 figures of most leaves, &c., can be referred to one or more 

 of them, concern the general outline only, and although 

 other forms are occasionally met with, they may be con- 

 sidered as the commonest types. 



Examples of leaves presenting linear, acicular, subu- 

 late, and similar forms, are afforded by the following : 

 The acicular type prevails in 



Cedars Douglas Fir 



Spruce Pines. 



The linear type prevails in 

 Silver Fir Erica vagans Heath 



Larch Yew Salix viminalis 



Crowberry Bell Heather Erica cornea 



Sea Buckthorn. 



The subulate type is rare, but occurs in 

 Juniper Tamarisk. 



The lanceolate type of leaf-form occurs in the following : 



Narrow lanceolate in 



Andromeda Weeping Willow Crack Willow 



White Willow Salix purpurea Salix vitellina. 



Broader lanceolate in 



Aucuba Privet Portugal Laurel 



Chestnut Lycium Almond 



Salix triandra Azalea Spindle Tree 



Cherry Laurel Rhododendron Sweet Gale 

 Mezereon Spurge Laurel. 



