24 



5. Oblong ; two or three times as long as broad with 



almost parallel sides. 



6. Elliptical; oblong with a regularly curved outline. 



7. Oval ; broadly elliptic. The width more than half 



the length. 



8. Ovate ; like the outline of an egg with the broader 



end at the base. 



9. Orbicular ; circular or nearly so. 



10. Cuneate ; wedge-shaped. Broad at apex and narrow 



at base. 



11. Deltoid or triangular ; cuneate with the width at 



the base. 



12. Spatulate ; spoon-shaped. Rounded above, long a.nd 



narrow below. 



13. Reniform ; kidney- shaped. 



14. Falcate ; sickle-shaped. Curved like the blade of a 



sickle, or scythe. 



For describing the extremity of the leaf, whether the 

 base or apex, the following terms are most commonly used, 

 1 to 9 being generally applied to the apex and 10 to 13 to 

 the base. 



1. Acuminate ; with a long tapering point. 



2. Acute : ending in an acute angle, the point not 



being prolonged. 



3. Obtuse : with a blunt or rounded apex. 



4. Truncate : ending abruptly as if with the end cut 



off by a straight line. 



5. Retuse : with a shallow notch in a rounded apex. 



6. Emarginate : with a decided terminal notch. 



7. Mucronate : ending abruptly in a short, stiff, sharp 



point. 



8. Cuspidate : ending in a long, tapering, stiff, sharp 



point. 



9. Caudate : ending in a long slender tail. 



10. Cordate : when of two broad rounded lobes one 



on either side of a deep notch. 



11. Aurided : when of tw o narrow rounded lobes one 



on either side of a deep notch, 



12. Sagittate : when the lobes on each side of tho 



notch are pointed and directed downwards. 



13. Hastate : when the lobes on each side of the notch 



are pointed and directed outwards. 



