120 Assembly 
Order CABOMBACE^. The Water-Shield Tribe. 
Brasenia, Schreb. Water Shield. 
peltata, Pursh. Floating in still water. July. 
Order CERATOPHYLLACE.E. 
Ceratophyllum, L. Hornwort. 
echinatum, Gray. In ponds, or slow-flowing water. August. 
Order NELUMBIACEiE. 
Nelumbium, Juss. 
luteum, Willd. Great Yellow Water Lily. Sodus Bay, Lake 
Ontario. Dr. Sartioell. June. 
Order NYMPH.^^ACEiE. The Water-Lily Tribe. 
Nymph^a, Tourn. White Water Lily. 
odorata. Ait. In water. June-September. 
Nuphar, Smith. Yellow Pond Lily. 
lutea. Var. Kalmiana, Torr. <^ Gr. N. Kalmiana, Pursh. In 
water. June, 
advena, Ait. Spatterdock. In water. June-August. 
Order SARRACENIACEiE. 
Sarracenia, L. Sidesaddle Flower. 
purpurea, L. Swamps. May- June. 
Var. heterophylla. S. heterophylla, Eaton. Junius, Seneca 
county. Dr. Sartwell. The flowers of this va- 
riety are of a dull yellow colour, and the leaves 
are somewhat difl'erent from those of the ordinary 
form ; but the plant does not appear to be a dis- 
tinct species. 
Order PAPAVERACE^E. The Poppy Tribe. 
Sanguinaria, L. Blood-root. 
canadensis, L. Open woods. March-April. 
