H MOSrOECIA. POLYANDRIA. 



POLYANDRIA. 



400. Ceratophyllum. L. Horn-wort 



demersum. L. In stagnant waters and slow flowing 

 streams, U- July. 

 101. Sagittaria L. Arrow-head. 



1 sagittifolia. L. In ponds and small creeks. Greenwich. 



July, white. 



2 latifolia. Willd. 

 sagittifolia. 



In similar situations, if. July — Aug. white. 



3 hastata. Ph. var. of S. sagittifolia ? Tn the cedar 



swamps at Weehawk. New-Jersey, if • July. 



4 lancifolia. Willd.? In ponds near Newburgh. if. July. 



white. 



5 pusilla. Nutt. Muhl. Cat. ? 

 Alisma suhulata. Mx. Ph. 



On the muddy banks of the small streams which flow into the 

 Hackensack river, N. Jersey, if. Aug. white. 



6 graminea. Mx. Ph. ? 

 graminifolia. Muhl. Cat. 



On the island of New- York. Lc Conte. 



7 acutifolia. Ph. Nutt. On the muddy banks of the Pas- 

 saic river, li . Sept. white. 



402. Juglaxs. L. 1?. Walnut Hickory* 



#Jugeans. L. and Nuttall. 



1 nigra. L. (Black walnut J In woods. May. 



2 cinerea. L. (Butter-nut) 

 cathartica. Mx. f. 



In woods. Manhattanville and New-Jersey. May. 



hybrida. LC. Near where the eighth avenue intersects the 



road called Lake's Tour, about 3 miles from the city— 

 a large tree. May. 

 **Carya. JVUtldll. Hickoria. Raf. 



4 compressa. Gaert. Willd. (Shag-bark. J 

 alba. Mx. 



squamosa. Mx. f. 

 In woods. May. 



5 alba. L. Willd. (Common hickory.) 

 tomentosa. Mx. 



Woods. May. 



6 amara. Mx. f. (Bitter -nutt) In woods. May. 



7 glabra. Muhl. (Pig-nut) 

 pore in a. Mx. f. 



In woods. May. 



403. Quercus. L. J?. Oak. 



1 Phellos. Willd. (Willow oak.) Grows 6 miles from S. 



Amboy, on the road to Monmouth, and about Long 

 Branch. 



