PLATE IV. 



Fig. 1. 



GERMINATION OP A MONOCOTYLEDON, OR ENDO- 

 GENOUS PLANT. 



The Scheuchzeria palustris, 



a, Pivot or radicle. 



b 6, Accessory roots shooting from the bottom of 



the stem. 



c, Cotyledon or first leaf. 

 d d 1 , Second and third leaves, called primordial. 

 c c, Common leaves of the plant. 



Pig. 2. 



HORIZONTAL SECTION OP THE STEM OP A MONO- 

 COTYLEDON, OR ENDOGENOUS PLANT. 



Yucca aloifolia. 



Showing the scattered fibres which compose 

 the wood, having neither bark, pith, med- 

 ullary rays, nor distinct layers. 

 31* 



