30 



* • ' 



1 canadensis Mx. Caulinia flexilis W. 



261 Nelumbium L. 



1 luteum L. Sacred Bean. Water Chinquapin. Haddam. Ct. 

 The largest flower in North America grows upon this 

 plant, except that of Magnolia macrophylla. 



262 Neottia Sw. 



1 aestivalis Pers. Ladies' 1 Tresses. 



2 cernua Sw. Nodding Ladies' 1 Tresses. 



263 Nepeta L. 



1 cataria L. Catmint. Catnip. 



364 Nuphar Sm. 



1 advena Ait. Yellow Water Lily. 



2 kalmiana Ait. 



265 Nymphaea L. 



1 odorata Ait. White Pond Lily. 



266 Nyssa L. 



1 biflora W. Sour Gum. 



2 villosa Mx. Pepperidge. Tupelo. 



o. 



267 Oenothera L. 



1 biennis L. Scabish. Tree Primrose. 

 > 2 pumila L. 



268 Onopordum L. 



1 Acanthium L. Cotton Thistle. East Parish, Amherst. 



269 Onosmodium Mx. 



1 hispidum Mx. False GromwelL Guilford Vt. 



270 Orchis h.(See Habenaria.) 



1 spectabilis W. Orchis. 



2 tridentata W» 



271 Orobanche L. 



1 americana L. Mt. Holyoke. 



2 uniflora L. Squaw Root. Cancer Root. 



272 Orontium L. 



1 aquaticum L. Golden Club. Southwick. Dr. Porter. 



273 Oryzopsis Mx. 



1 asperifolia Mx. Mountain Rice. Mt. Holyoke. 



