1 14 INSERTION OF LEAVES. 



Jamaica, t. 38, Linn. Mss., and Alstrcemeria 

 pelegrina, Curt. Mag. t. 1 39. 



Depressa, radical leaves pressed close to the ground, 

 as Plant ago media, Engl. Bot. t. 1559, and 

 P. Coronopus, t. 892. The same term applied to 

 stem-leaves, expresses their shape only, as being 

 vertically flattened, in opposition to compressa. 



Nat ant ia, floating, on the surface of the water, as 

 Nympho'a alba, t. 160, Potamogeton natans y 

 t. 1822, and many water plants. 



Demersa, immersa, or submersa, plunged under 

 water, as Potamogeton perfoliatum, t. 1 68, Hot- 

 tonia palustris, t. 364, Lobelia Dortmanna, 

 t. 140, and the lower leaves of Ranunculus 

 aquatilis, t. 101, while its upper are folia na- 

 tantia. 



Emersa, raised above the water, as the upper leaves, 

 accompanying the flowers, of Myriophyllum ver- 

 ticillatum,t.%lS, while its lower ones are de- 

 mersa. 



2. By Insertion is meant the mode in which one part 



of a plant is connected with another. 

 Folia petiolata, leaves on footstalks, are such as are 

 furnished with that organ, whether long or short, 

 simple or compound, as Verbascarn nigrum, 

 Engl. Bot. t. 59, Thalictrum minus, t. 11, 

 alpinum, t. 262, &c. 



