TRIANDRIA. DIGYNIA. 15 



2 polystachya. Mulil. 



Limnetis polstachya et cynosuroides. Pers. 

 Trachynotia polystachya et cynosuroides. Mx. 

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



3 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. 5 Muhlenbergia. Schreb. 

 I Dilepyrum. Mich. 



diffusa. Schreb. 



Dilepyrum minutiflorum. Mich. 

 On the high rocky hills about Weehawk, and at Patterson 

 falls. %. Sept. 



34. Trichodium. Mich. Thin-grass. 



1 laxiflorum. Mx. In woods and meadows. %. Aug. 



2 scabrum. Muhl. 

 Agrostis scabra. Wild. 



In meadows. % . Aug. 



35. § Leersia. Swartz. Cut-grass. Rice-grass. 

 £ Asprelxa. Lmk. 



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. %. Aug. — Sept. 



36. Milium. L. Millet-grass. 



amphicarpon. Ph. 

 ciliatum. Muhl. 

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

 revera Milium ? 

 37- Agrostis. L. Bent-grass. 



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



2 alba. L.-Muhl. In fields and meadows. 11. July. 



3 Vulgaris. 8m. {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. u- Oct. 



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

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



Sandy fields about Greenwich ; also in N. Jersev. If. Sept. 



7 involuta. Muhl. Gram. Borders of fields about Hai si- 



mus. N. J. jf. Sept. 



