526 TRANS. ST. LOUIS ACAD. SCIENCE. 



Beckmannia erucaeformis, (L.) Host, var. uniflorus, Scrib. in Va- 

 sey, Desc. Cat. 1885. 



Escaped around station-house. 

 Panicum glabbum, (Schrad.) Gand. Agros. i. 1811. — Synthcrisma 

 glabra, Schrad. Fl. Germ. 1S06. 



Roadsides and sandy places ; common. 

 P. SANGUINALE, L. SpeC. 



Fields; common. 

 P. PBOiiiFERUM, Lam. Diet. iv. 



Roadsides and cultivated soil; common. 

 P. CAPILIiARE, L. Spec. 



Fields; common. 

 P. viRGATUM, L. Spec. 



Prairie; common. 

 P. i^ATiFOLiUM, L. Spec. 



Upland woods ; frequent. ■ 



P. SCOPABIUM, Lam. Diet. iv. 



Prairie; common. 



One form is nearly smooth except the margins of the leaves; another is stouter, 

 with leaves, sheaths and spikelets liirsute. 



P. DiCHOTOMUM, L. Spec. 



Prairie; common. 

 P. (RUS-GALLi, L. Spec. 



Fields and waste places ; common. 

 Var. MUTicuM, Torr. 



Damp places; frequent. 

 Setaria glauca. (L. ) Beauv. Agrost. \8\2.—Fanicum glaucum, 

 L. Spec. 



Fields; common. 

 S. viRiDis, (L.) Beauv. Agrost. 1812.— Fanicum viride, L. Spec. 



Fields; common. 



Some specimens with oblong, purplish spikes, are apparently hybrids with S . 

 Italica. 



S. Italica, (L.) Kunth, Gram, (ex Kunth, Euum. \.l).— Panictim 

 Italtcum^ L. .Spec. 

 Abundantly escaped. 

 Cenchrus TRiBUiiOiDES, L. Spec. 



Sandy soil; not uncommon. 

 HoMALOCENCHRUS ViRGiNiCA, (WiUd.) Britt. Traus. N. Y. Acad. 

 Sci. ix. 1889. — Leersia Vtrgintca, Willd. Spec. i. 

 Low ground ; abundant. 

 H. ORYZOIDES, (L.) Poll. Enum. PI. Palat. ITiS.— Phalaris oryzol- 

 des, L. Spec. — Leersia oryzoides, Swartz. Fl. Ind. Occ. i. 1797- 

 Wet places ; common. 

 ZrzANiA AQUATiCA, L. Spec. 

 Ponds; scarce. 



South of Shearer School ; Onion creek. 



