ILLUSTRATED TERMS. 



7 



Spatulate : like a spatula, rounded at the apex and taper- 

 ing towards the base. (Fig. i6.) 



Orbicular, nearly circular in outline. 



Peltate or Shield-Shaped : orbicular, with the petiole 

 attached at or near the middle. (Fig, 17.) 



Cordate or Heart-Shaped : ovate in outline, and havinij 

 sides that form a notch at the base. (Fig. iS.) 



Obcordate : a reversed cordate. 



Fio. 13. 



FIG. 14. 



FIG. 15. 



FIO. 16. 



Reniform or Kidney-Shaped : when the indentation is 

 deeper and the leaf more rounded than heart-shaped. (Fig. 19.) 



Auriculate : when the sides of the leaf are prolonged at the 

 base into two ears or lobes. (Fig. 20.) 



Sagittate or Arrow-Shaped : when pointed at the apex 

 and having the lobes at the base acute and pointed backward. 

 (Fig. 21.) 



To describe the peculiarities of the margins of leaves such 

 terms are employed as : — 



Entire : those leaves in which the margins form an un- 

 broken line. (Fig. 13.) 



Undulate : when the margins are wavy. (Fig. 22.) 



Crenate : when the margins have rounded teeth or appear 

 to be scalloped. (Fig. 12.) 



