66 LEAVES. 



furnished, as in Goat'^-beard, page 21 ; fig. 

 3, pi. 15. 



The Leaves of plants are so important in 

 furnishing specific characters, that great attention 

 must be paid to their forms, texture, and situation. 



They are said to be 



Seed leaves, when they proceed immediately 



from the seed, fig. 1, pi. 28. 

 Radical, when springing from the root, fig. 4, 



pi. 27. 



Cauline, when growing on the stem, fig. 2, pi. 27. 

 Branch leaves, when on the branches. 

 Axillary, proceeding from between the branch 



and stem. 

 Floral, when near the flower, fig. 2, '^ pi. 27. 



The form of a leaf is either simple, as in 

 Grasses, Orchises, and Lilies ; or compound, as 

 in most umbelliferous plants, such as Parsley, 

 Hemlock, &c. 



Simple leaves are either entire, (undivided) as 

 those of Grasses ; or lobed, as those of the Thistle. 



A simple leaf is either 



Orbicular, fig. 2, pi. 28. 

 Subrotund, roundish, fig. 3. 

 Ovate, egg-shaped, fig. 4. 



