TRIANDRIA. DIGYNIA. 15 



2 polystachya. Mulil. 

 Limnctis polstachya et cynosuroides. Pel's. 

 Tracbynotia polystachya et cynosuroides. Mx. 

 On the sea-roast about S.Hook, and in Newark meadows. 

 S glabra. Muhl. In salt-marshes and on the banks of riv- 

 ers. % . Aug. — Sept. 

 4 pumila. Roth. Near N. York- Roth. Perhaps a variety 

 of the preceding. 



DIGYNIA. 



33. S MUHLENBERGIA. Schieb. 



I Dileptrum. Mich. 

 diffusa. Schreb. 



Dilepyrum minutiflortim. Mich. 

 On the high rocky hills about Weehawk, and at PattersoQ 

 falls. %. Sent. 



34. Trichodium. Mich. Thin-grass. 



1 laxiflorum. Mx. In woods and meadows. !>. Aug. 



2 scabrum. Muhl. 

 Agrostis scabra. Willd. 



In meadows. H . Aug. 



55. $ Leers i a. Swartz. Cut-grass. Rice-grass- 

 £ Aspreula. Link. 



1 Oryzoides. Sw. 

 Asprella Oryzoides. Lmk. 

 Phalaris Oryzoides. L. 



In stagnant waters and wet meadows. %. Aug. — Sept. 



2 Virginica. Willd. 

 Asprella Virginica. R. & S. 



In wet woods. Bloomingdale, &c. "il . Aug. — Sept. 



56. Milium. L. Jlillet-grass. 



amphicarpon. Ph. 

 ciliatum. Muhl. 

 In Monmouth county, New-Jersey, v. s. © ? Sept. Jin 

 revcra Milium ? 

 37. Agrostis. L. Rent-grass. 



1 stricta. Willd. On rocks. Bloomingdale. If. July. 



2 alba. L.-Muhl. In fields and meadows. %. July.* 



3 Vulgaris. Sm. (Red-top.) Infields and meadows. %. June 



—Aug. §. 



4 Mexicana. Muhl. Gram, 

 lateriflora. Mx. 



In wet meadows. New Jersey, if. July. 



5 Compressa. Sp. nov. In sandy pine woods. New-Jer- 



sey. Goldy. 14. Oct. 



6 Virginica. Muhl. Gram, non A. pungens. Pers. 

 Crypsis Virginica ? Nutt. Gen. Arner. PI. 1 p. 49. 



Sandy fields about Greenwich ; also in N. Jersey. T{. Sept. 



7 involute. Muhl. Gram. Borders of fields about Harsi- 



mus. N. J. n. Sept. 



