IV 



THE STUDY OF THE SHOOT 



39 



Simple leaves receive the following names, according to the 

 shape of the blade : 



Lanceolate ', when the leaf is from two to four times as long as 

 it is broad and tapers at both ends, e.g., Wallflower (Fig. 45). 



Ovate, when the broadest part is nearer the base than the 

 apex, e.g. Guelder-Rose (Fig. 46). 



Cordate, when the base is shaped like a heart, e.g. Lime 

 (Fig. 47). 



Sagittate, when the base possesses pointed ends extending like 

 an arrow backwards, e.g. Convolvulus (Fig. 48). 



Obovate, when the broadest end is nearer the apex than 

 the base, e.g. as in some of the Rock- Roses, and leaflet of 

 Wood-Sorrel (Fig. 49). 



Fici. 45. Lanceolate 

 leaf of Wallflower. 



Fig. 46. Ovate leaf of 

 Lilac. ' 



FIG. 47. Cordate leaf 

 of Deadnettle. 



Oblanceolate, when the lanceolate leaf has a wider part 

 which is nearer the apex than the base, e.g. Dog Violet and 

 Spurge Laurel (Fig. 50). 



Spatulate, when the leaf is like a spoon, with a rounded 

 portion near the apex, e.g. Daisy. 



Reniform, when the leaf is kidney-shaped, e.g. Ground Ivy 

 (Fig. 52). 



Linear, when the leaf is very long and narrow, e.g. most 

 Grasses (Fig. 53). 



Elliptical, when the leaf is oval, e.g Apple (Fig. 54). 



Acicular, when shaped like a needle, e.g. Fir. 



