IOWA ACADEMY OF SCIENCES. 221 



Panicum Hians, Ell. Myers (488, 489). Around ponds in 

 flatwoods. 



Panicum Agrostoides, Spreng. Myers (520). Swamps, 

 ditches, and also flatwood ponds among the shrubs. 

 Some are large with smooth sheaths, others (529) are 

 small pubescent sheaths. 



Panicum Anceps, Michx. Myers (490). Alva. Swamps and 

 ditches. 



Panicum Stenodes, Griseb. Myers (492). Wet-weather 

 flatwood ponds, in the water, 



Panicum Virgatum, L. (491), Marco. Around ponds and 

 along streams. 



Panicum Jumentorum, Pers. Myers. 



Panicum Commutatum, Schultes. Alva (477). In palmetto 

 hammocks near river. 



Panicum Equilaterale, Scribn. Myers (471). In a small 

 hammock. 



Panicum Webberianum, Nash. Myers (470), Marco. A weed 

 in fields. 



Panicum Erectifolium, Nash. Myers (469). Wet-weather 

 flatwood ponds, growing in the water. 



Panicum Ciliiferum, Nash. Myers (474). In an. old field. 



Panicum Ciliatum, Ell. Marco, Myers (482). Flatwoods. 



Panicum Baldwinii, Nutt. Myers (472), Marco. Flat- 

 woods. 



Panicum Neuranthum, Griseb. Myers. 



Panicum Albo-marginatum, Nash. Meyers. 



Panicum Leucothrix, Nash. Myers (473). Along the 

 banks of a shady ditch, just above the water. 



Panicum Barbulatum, Michx. Myers (478) (479). Around 

 ponds and ditches. 



Panicum Laxiflorum, Lam. Alva (480). Palmetto ham- 

 mock, near river. 



Panicum Sphagnicolum, Nash. Myers (487). In a sphag- 

 num bog; observed in no other locality. 



Panicum Divarictum, L. Marco. Thickets, clambering 

 over shrubs. 



Panicum Crus-galli, L. Myers. A weed in fields. 



