15G 



MONADELPHIA OCTANDIUA 



DECANDRIA^ 



OCTANDRIA. 



PISTIA. 



EN. Pl. 1112. 



Calyx spatlia tiibu- | Ccilyx a tubulai 



losa,cuciillata,lingiiIa 



ta. 



Corolla 0. 



Fi 



lamenta later alia, 3 



culate spath 





strap 



shaped 



Corolla 



8. 



Capsula 1 lociila- 



ris, polysperma. 



Filaments lateral, 3 

 8. Capsule 1 celled 



many seeded. 



1. 



P\THULATA. 



Mich. 



P. foliis in petiolum 

 abrupte angustatis, 

 superne dilatatis, ro- 

 tundato obtusis. 



Leaves 



m 



abruptly 

 narrowed into a peti- 

 ole, dilated, round and 

 obtuse towards 



y - 



summit. 



the 



Mich- 2. p. 162. Pursh 1. p. 268. Nutt. 2. p. 80. 



A floating aquatic. Leaves all radical, expanded in a circle. Flowers 

 axillaryj snbsessUe, solitary, white. Nuttall. 



This plant, which is said to grow in tlie stagnant waters and streams oi 

 f lorida and the southern parts of Georgia, I have not seen. 



Flowers through the whole summer. 



DECANDRIA. 



GERANIUM. Gen. Pl. Ills. 



Calyx 



phyllus 



Ca lyx 



5 



leaved. 



Peiala 



Stamina 10. 



regularia. ] P€^<x/r 5 regular. Sid- 



mens 10. Stmmas 5. 



Stig 



