40 



FORMS OF SIMPLE LEAVES. 



Fig. 44. SPATULA TE. 



A lobate leaf folium loba- 

 turn (Jig. 42). Divided more 

 deeply than toothed or dentate, 

 by somewhat obtuse incisions of 

 an uncertain depth : each portion 

 is termed a lobe. The number 

 of lobes is sometimes specified. 



Example : the Liriodendron 

 tulipifera, or tulip tree; also 

 called poplar, canoe-wood, sugar 

 maple. 



A reniform leaf folium reni- 

 forme (Jig. 43). (From the 

 Latin, ren, kidney ; and forma, 

 form, shape.) Kidney-shaped. A 

 short, broad, round leaf, with a 

 sinus or hollow at the base. 



This figure shows the tertiarv 

 nerves springing from the second- 

 ary. 



Example: the Asarum cana 

 dense, colt's foot. 



A spatulate leaf folium spatula- 

 tn m (Jig. 44). (From the Latin, 

 Spathvla, a broad slice or knife to 

 spread plasters.) Oblong or obverselv 

 ovate, with lower part much attenuated. 



Example: the Poly gala lutea. 



A peltate leaf folium peltatum 

 (fig. 45). (From the Latin, pelta a 

 shield.) Where the petiole is inserted 

 into the middle of the leaf on the under 

 side, like the arm of a man holding n 

 shield. This figure (45) is also an illus- 

 tration of a peltinerve leaf. 



Example : the common nasturtium. 



r, 45. PELTATE. 



