the Science of Botuny. 29 



An hatchet- (haped leaf [dolabriforme) is a 

 comprefled luborbicular leaf like a plainer ; it 

 is blunt, projeftmg or fwelling outwardly with 

 a fharp edge, and almoft cylindrical toward 

 the lower part, as in the Mejctnbryanthemum 

 dolabriformiy fee fig. ^y, 



A tongue-fliaped leaf {linguiformi) is a de- 

 prefled linear fleihy leaf, a httle convex on the 

 upper fide, and has generally cartilaginous bor- 

 ders, as the "Tongue-paped Ahe^ fee fig. 55. 



A three fided leaf {tnouetrum) is one that 

 has three ilac longitudinal fides, but is genet*, 

 rally awl-pointed. 



A three cornered leaf {trigoniLm) is like the 

 former, but the faces are channelled and the 

 projedions are membranous. 



Of Compound Leaves, Plate III. 



Compound leaves are divided into fimple 

 and decompound. 



A compound leaf is compofed of feveral 

 fmall leaves united together upon the fame 

 common footftalk, which is but one com-r 

 pound leaf. 



A leaf is called (folium) but when it is 

 compofed of many fmall leaves, thefe fmall 

 leaves are called ffoHoIum) which form a com- 

 pound leaf. 



A 



