28 MORPHOLOGY OF ROOTS. [LESSON 5. 



side-buds of the Bed-Maple, or when they are undeveloped blossoms. 

 These we shall have to consider hereafter. 



Figure ii-1 represents a spreading-topped tree (American Elm), 

 the stem dividing off info branches ; and some spiry trees (Spruces 

 on the right hand, and two of the Arbor- Vuuj on the left) with ex- 

 current 



LESSON V, 



MORPHOLOGY (i.e. VARIOUS SORTS AND FORMS) OF ROOTS. 



61. Morphology, as the name (derived from two Greek word?) 

 denotes, is the doctrine of forms. In treating of forms in plants, the 

 botanist is not confined to an enumeration or description of the 

 shapes or sorts that occur, which would be a dull and tedious 

 business. but he endeavors to bring to view the. rc/afioiis bcftrccn 

 one form and another ; and this is an inn-resting study. 



G2. Botanists irive particular names to all the parts of plants, and 

 also particular terms to express their principal varieties in form. 

 They use th'-se terms with great precision and advantage in describ- 

 ing the species or kinds of plants. Thev must therefore he defined 

 and explained in our books. Hut it would be a gieat \va-te of time 



