GLOSSARY. 203 



leaves are required, sometimes from that 

 cause, as in the cactus, none at all. It is 

 divided into three parts the skeleton or 

 framework being the expanded petiole, the 

 branches of which form ribs, to the different 

 modes of which ramification are owing the 

 various forms of leaves, the pulpy portion 

 holding the green matter, and the cuticle, 

 or skin, that covers all. 



LEGUME. A pod ; applied to the fruit of legu- 

 minous plants, such as the pea, &c. 



LIGNEOUS. Plants whose stems become gra- 

 dually less herbaceous, and of a woody 

 texture, and which survive more than 

 three years the annual fall of the leaf, 

 or which retain their leaves in winter as 

 well as summer. 



LINEAR. Narrow, with parallel sides, as in most 

 grasses. 



LUNATE. Crescent-shaped, like a half-moon. 



LYRATE. Lyre-shaped : cut into many trans- 



x verse segments, becoming larger towards 



the extremity of the leaf, which is rounded. 



LABIATE. Resembling lips. 

 MARESCENT. Withering. 



