«8* MONOECIA. POLYANDRIA. 
POLYANDRIA. 
\ 
Stamina 8 vel plura. 
MYRIOPHYLLUM. Masc, Cal. tetraphyllns. 
Pet. 4. Siam. 8. 
Faem. Cal. tetraphyllus. Pet. 4. Stigmata 4. ses- 
silia. Sem. 4. corticata, 
MYRIOPHYLLUM. Flowers often M. and F. 
on the same plant. Cal. ^leaves. Bloss. none. 
F. Style none. Seeds 4; naked. - , 
POTERIUM. Masc. Cal. tetraphyllus. Cor. quad- 
ripartita. Stam. 30—40. 
Faem. Cal. tetraphyllus. Cor. quadrlpartita. Piit. 2. 
Nux. bilocularis, corticata. 
POTERIUM. Flowers M. and F. on the same 
plant. Cal. ^-leaved. Bloss. with 4 divisions. 
F. Berry formed of the indurated tube of the blossom. 
Fern. Drupajz/zV^/fjf; beneath ; 1 <??' 2 celled \ formed 
V of the indurated tube of the blossom. 
SAGITTARIA. Masc. Cal.' triphyllus. Pet. 3. 
Stam. fere 24. 
Faem. Cal. triphyllus. Pet. 3, Pist. plurima. Caps. 
luprimae, ventricosae, monosnermae. 
SAGITTARIA. Flowers M. and F. on the same 
plant. Cal. ^leaves. Bloss. petals, 
Male. Filam. about 24. 
Fern. Seeds many., naked. 
CERATOPHYLLUM. Masc. Cal. raultipartUu5. 
Cor. n.lLi. Stain. 16 —20. 
