Class IV. Order IV. 



TET&WDRM. 



50. ILEX. 

 ILEX OPACA. Ait. American Holly. 



Leaves oval, with strong spreading spinous 

 teeth; fascicles of flowers lax, peduncles com- 

 pound 5 calyxes rather acute, smooth ; fruit ovate. 

 Mich. 



This tree is more interesting, from being one of the few 

 evergreen trees, which we possess, that are not of the conifer- 

 ous tribe. Its leaves are tough, smooth, and shining, furnished 

 at the edge with short, rigid, acute spines. The flowers are 

 numerous, small, of a greenish white, growing in bunches around 

 the branches. Berries red, falling very late. Quincy, Co- 

 hasset. June. 



51. POTAMOGETON. 

 POTAMOGETON NATANs. L. Floating pond weed. 



Upper leaves oblong-ovate, rounded at the base, 

 petioled, floating. Sm. 



A very common species of pond weed, growing near the 

 muddy banks of deep waters. Leaves oblong, sometimes a 

 little hearted at base, two inches long, floating on the surface, 

 on footstalks accommodated to the depth of the water. In June 

 the spikes of dull flowers emerge on solitary round footstalks, 

 surrounded at base by lanceolate bractes or stipulse. 



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