222 IOWA ACADEMY OF SCIENCES. 



Panioum Hispidum, Forst. Myers (470), Sanibel. Swamps. 



No. 37C in an inundated cultivated field. 

 Panicum Colonum, L. Marco (475). A weed in the shell- 

 mound fields. 

 Panicum Gibbum, Ell. Myers (486). Swamps and ditches. 

 Panicum Sp. Myers. This is the same as Nash No. 778. 

 Setaria Imberbis, R. & S. Myers (511, 512, 513), Punta 



Rassa, Marco. A common seed. This is a large form 



with hair on the leaves. Myers (514), Sanibel (515), 



A small slender form, growing in clumps. No hairs 



on leaves, near the ligules. 

 Setaria Corrugata, Schult. Myers (516), Alva (517). A 



weed in fields. No. 517 along sandy river bank. 

 Setaria Macrosperma, Scrib. & Merr. Myers (518). A 



weed in fields. Annual. Often from large bunches. 

 Setaria Setosa, Beauv. Marco (519). Shell mounds near 



Water. Crrows in large clumps. 

 Cenchrus Kchinatus, L. Myers (448). Marco. A weed 



in fields. 

 Cenchrus Tribuloides, L. Myers (447). Flatwoods and 



fields. 

 Cenchrus Incertus, Curtiss. Punta Rassa (446). Sanibel. 



Along the coast. 

 Stenotaphrum AMERiCANUM,Schrank. Myers (531). Marco, 



Punta Rassa. Along the streets of Myers and on mucky 



river bank. Cultivated as a lawn grass. Called St 



Augustine Grass. 

 Leersia Hexandra, Sw. Myers (468). Swamps. 

 Rottboellia Rugosa, Nutt. Myers (510). Swampy flat, 



near pond. 

 Tripsacum Dactyloides, L. Myers (534), Alva. Large 



clumps in ponds and bayheads. 

 Elionurus Tripsacoides, HBK. Myers (456). Around 



flatwood ponds. 

 Andropogon Elliottii, Chapm. Punta Rassa (440), Myers. 



Open ground near coast. 

 Andropogon Longiberbis, Hack. Forma niacra, Nash, 1194. 



Myers (441). Swamps and ditches. 



