TETRANDRIA TETRAGYNIA. 123 



the P. /erratum. Lin. Sp. pi. is probably only a 

 variety of this fpecles. 



P. foliis linearibus obLufis, caiile compreflb. Sp. pi. 



183. (Oed. Dan. t. 203. cpt. Pet. herb. t. 5.}. 10) 

 Flat-ftalked Fondweed. Jngiis. 

 In ditches and ftagnant waters, but not common* 



n. VII. 

 The leaves are four or five times longer than the 



StipuU. The fpike produces about fix fmall 



flowers. 



POTCMOGETON foliis lineari-lanceolatis alter- 

 nis feflilibus ftipula latioribus. Sp. pi 184. {Oed. 

 Dan. t. 222. opt. Raj.fyn.p. 150. /. 4./. '^. fed 

 non bene quoniamfine Stipulis ; quadrat melius ad 

 P. comprejfum in multif. Loef. PruJ. p. 206. No 

 66.) 



Grafs-leav'd Pondweed. Anglis. 



In ditches and ponds not very common, if. VIII. 



The {talks of this are round and flender, the leaves 

 feflile and pointed, and aboui twice the length 

 of the ilipulas, which are much larger in this 

 than the preceding : the fpike has fifteen or 

 twenty flowers. 



P. foliis fetaceis parallelis approximatis difliichis. 

 Sp. pi. 183. {Ger. Em. 828. /. 4. pet. herb. t. 5. 



/• -s-) 



Fennel-leav'd Pondweed. Anglis. 



In rivers and lakes. Dr. Parfons. %. VII. 



piifilum 



