PI. end. ph. 6. FLUVIATILES. 31 



Berry roundish ; leaves lineai', bundled ; 

 spermo'dermis crustaceous, black . . . ASPARAGE^. 16. 



Berry roundish ; leaves alternate, or ver- 

 ticillate; spermodermis memhYnu^ceou^ SMlLACEiE. 17. 



3. Ovary 1, Z-celled ; perigonium adherent; 



stamens perigynous. 



Berry roundish ; leaves petiolate; 

 spermodermis membranaceous ...... TAMACE^. 18. 



Valves 3, bearing the dissepiments ; 

 stamens 6 ; anthers opening by 2 pores 



AMARYLLIDE^. 19. 



Valves 3, bearing the dissepiments; 

 stamens 3 ; anthers opening outwards .... IRIDE^. 20. 



4. Ovary 1, \ or 6-celled; perigonium adherent ; 



stamens epigynous. 



Stamens 1 or 2 ; perigonium irregular ; 

 caps. 1 -celled, 3-valved; plant terrestrial ORCHIDE^. 2L 



Stamens 9 to 20; perigonium regular; 

 caps. 6-celled; plant aquatic HYDRO CHARIDE^. 25. 



5. Ovaries 3, 6, or 12; perigoniu7nfree; 



stamens perigynous. 



Ovaries 6 or 12; leaves lanceolate; 

 seeds 1 or 3 erect, affixed to the suture ALISMACE^E. 22. 



Ovaries 6 or 12; leaves awlshape; 

 seeds many, affixed to the side of the 

 capsule_ BUTOMACEtE. 23. 



Ovaries 3 or 6 ; leaves awlshape ; 

 seeds 1 or 2, affixed to the base . . JUNCAGINEiE. 24. 



Fam. I. 6. FLUVIATILES. Ventenat. 



Flower unisexual, or hermaphrodite; perigonium none 

 or fourcut, free, herbaceous ; stamens 1 to 4 ; ovaries 

 many, free; style sometimes wanting; stigmata simple; ca- 

 rfoy&iic/e^ one-celled, one-seeded; seed inverse or appended ^ 

 embryo across the seed ; perisperm none, — Plants herbaceous, 

 aquatic; roots fibrous; leaves mostly sheathing, either op- 

 posite or verticillate ; ftoivers axillarjj^, terminal, sometimes 

 solitary, but mostly in a spike or on a spadix. 



