294 [Senate 



Order TYPHACE^E. The Cat-tail Tribe. 

 Typha latifolia, L. Borders of swamps. ■ June, July. 



— angustifolia, L. Wet places. July. 



Order FLUVIALES. The Pondweed Tribe. 

 Potamogeton natans, L. Ponds and slow streams. July. 



— perfoliatus, L. Ponds, etc. July. 



— gramineus, Michx. Ponds. July, August. 



And perhaps a few other species. 



Order JUNCAGINACEjE. The Arrow-grass Tribe. 

 Triglochin elatum, Nutt. Near Bridgewater. Dr. Gray. 

 Scheuchzeria palustiis, L. In an elevated sphagnous swamp, Oris- 



kany. July. 



Order PISTIACEiE. The Duckweed Tribe. 

 Lemna polyrhiza, L. Ditches. July. 



— minor, L. Stagnant water. July, August. 



— trisulca, L. Ditches and ponds. July. 



Order CYPERACE^E. The Sedge Tribe. 

 Dulichium spathaceum, Richardson. Borders of ponds and Oneida 



lake. July, August. 

 Cyperus diandrus. Var. castaneus, Torrey. Wet pastures. August, 



September. 



— michauxianus, Schultz. Wet borders of Oneida lake. July, 



August. 



— repens, Elliott. Sandy shores of Oneida lake, banks of the 



Mohawk. August. 



— filiculmis, Vahl. Old sandy fields, Oneida lake. August, 



September. 



— inflexus, Muhl. Sandy shore of Oneida lake, at the water 



edge. August. 

 Eleocharis palustris, R. Br. Oneida lake. June. 



— intermedia, Schultes. Wet places near Oriskany. Aug, 



— obtusa, Schultes. Bogs and ditches. July. Very common. 

 : — acicularis, R. Br. Borders of ponds and ditches. June, 



Not rare. 



— tenuis, Schultes. Borders of sluggish streams. Rare. 

 Scirpus debilis, Pursh. Wet sandy shore of Oneida lake. August. 



— - lacustris, L. Borders of ponds and sluggish streams. June. 



— maritimus, L. Var. fiuviatilis, Torrey. Borders of Oneida 



lake. July. 



: — triqueter, L. Borders of Oneida lake. July, August. 



— atrovirens, Muhl. Wet meadows. June. 



— eriophorum, Michx. Wet meadows. June, July. 

 Eriophorum alpinum, L. Cotton-grass. Oriskany swamp. June. 



Rare. 

 — vaginatum, L. Deep sphagnous swamps, pine plains, 



Rome. June. 





