INDICE. 



56 



POA . 



alpina 



annua 



aquatica 



bulbosa 



compressa 



distans 



Eragroslis 



Jèrtilis 



jlexuosa 



Jluitans 



laxa . 



Megastachya 



nernoralis 



pilosa 



pratensis 



rigida 



trivialis 

 POLEMOMUM 



coéruleum 

 POLYCARPON . 



tetraphyllum 

 POLYCNEMPM 



arvense . i 

 POTAMOGETON 



crispum 



deus uni 



lucens 



nalans 



