14 IDENTIFYING WILD FLOWEKS. 



at the base, with rounded auricles, so as to resemble a kidney 

 in outline. 



Ruminate leaves are pinnatifid or lobed leaves with 

 the divisions pointing downwards or backwards towards 

 the root. 



Sagittate leaves have two pointed auricles or lobes at 

 the base, pointing downwards. 



A sheathing leaf has its base pro^nged down and 

 around the stem, forming an open or closed sheath around it. 



Serrate leaves have teeth which are regular and pointed 

 like the teeth of a saw. 



Spathulate leaves have a short, broad part near the 

 apex, and a long, narrow, tapering part towards the base. 



A stalked leaf is one whose blade is connected to the 

 stem by a stalk. 



W horled leaves proceed several from the same node, 

 and are also arranged regularly around the stem at 

 that point. 



2. About Compound Leaves. A compound leaf is one 

 having distinct divisions of the leaf-blade, each of which 

 is separately inserted on the common leaf-stalk or on the 

 midrib. These single, separate divisions of a compound 

 leaf are called leaflets, being devoid of stipules and buds. 

 They may themselves be either whole or divided. 



Digitate leaves have several leaflets diverging from one 

 point on a common stalk. 



Pinnate leaves are composed of entirely separate leaflets 

 arranged on opposite sides of a leaf-stalk ; they are, there- 

 fore, compound leaves, and have only stipules and buds 

 at the base of the main stalk or petiole. Bipinnate 

 leaves are pinnate leaves the divisions of which are also 

 pinnate. Tripinnate leaves are pinnate leaves in which 

 the primary divisions or pinnae are themselves bipinnate. 



A Quinate leaf has five leaflets starting from one point 

 on a common stalk. 



Ternate leaves are those having only three leaflets start- 

 ing from the same point on a common stalk. 



Trifoliolate leaves have only three leaflets starting from 

 or near the same point on the main stalk. 



