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Elementary Botany 



When the leaf is somewhat of the form of an arrow-head 

 (fig. 127), it is called sagittate or arrow-shaped ; or if the barbs 

 of the arrow point out more at a right angle to the blade, the 

 leaf is hastate or halbert shaped (fig. 128). 



There are also several terms which are applied to the out- 

 lines of compound and 

 much divided leaves. 

 Thus, if a compound leaf 

 has two leaflets it is M- 

 iiate ; if three, temate 

 (fig. 1 18). A quadrifoli- 

 ate leaf has four, a qtdnate 

 five, a septenate seven, 

 and a multifoliate leaf 

 more than seven leaflets 

 springing from a common 



■Reniform leaf 

 of the Ground Ivy {Ne- 

 peta Glechoma), 



Fig. 125. — Spathulate 

 leaf of the Ox-eyed 

 Daisy (^Chrysanthe- 

 mum leucanthemwn.) 



Fig. 126. — Cuneate 

 leaflet from the leaf 

 of the Horse-chest- 

 nut. 



Fig. i27.~Sagittate 

 leaf of Convolvulus 



Fig. 128. — Hastate 

 leaf of i? umex ace- 

 tosa. 



point. When the leaflets are arranged on either side of the 

 central stalk, like barbs on a feather, the leaf is said to be 

 pinnate. Of these leaves there are two varieties, viz., impari- 

 pinnate or unequally pinnate, when there is an odd lobe at- 



