BEAL ON MICHIGAN FLORA. 43 



PASPALUM L. 



178. P. laeve Michx. S. W. H. S. Pepoon. Rare. 



179. P. Muhlenbergii Nash. Detroit, O. A. Farwell. 

 *180. P. setaceum Michx. Detroit, O. A. Farwell. 



SYNTHERISMA Walt. Panicum L. in part. 



*181. S. linearis (Krock.) Nash. Small Crab-grass. Panicum glabrum Gaudin. 

 Waste places. Common. 



*182. S. sanguinalis (L. ) Dulac. Large Crab-grass. Panicum sanguinale L. 

 Waste places, gardens and fields. A bad weed, difficult to dig up or pull out; grows 

 quickly and is perhaps the worst weed we have in gardens, at least in some local- 

 ities. S. linearis grows in the same situations but is smaller and easily 

 eradicated. Th. 



ECHINOCHLOA Beauv. Panicum L. in part. 



*183. E. Crus-galli (L.) Beauv. Barnyard-grass. Panicum Crus-galli L. Low 

 grounds. Variable. Common. 



*184. E. Walter! (Pursh.) Nash. Salt-marsh Cockspur Grass. P. Crus-galli 

 hispiduyn Ell. Low river bank near Hubbardston where it appears to be indige- 

 nous, C. F. Wheeler. Common along streams. L. P. 



PANICUM L. 



185. P. boreale Nash. Northern Panicum. Grand Rapids, Miss E. J. Cole; 

 Traverse City, C. F. Wheeler; Keweenaw Co., O. A. Farwell. 



*186. P. capillare L. Old-witch Grass. Sandy soil, fields. The spreading panicle 

 is easily broken off and blown about by the wind. Common. Th. 



*187. P. clandestinum L. Hispid Panicum. Low grounds. Macomb Co.; Flint, 

 Hubbardston; Bay Co., G. M. Bradford. Rare. 



*188. P. Columbianum Scribn. Belle Isle, O. A. Farwell. 



*189. P. commutatum Schultes. Variable Panicum. Detroit, O. A. Farwell; St. 

 Clair Co., J. W. Stacey. Dry woods. 



*190. P. depauperatum Muhl. Capac, W. S. Cooper. Starved Panicum. Dry 

 woods and barrens. Common. Th. 



*191. P, dichotomum L. Forked Panicum. Dry or low grounds. A very com- 

 mon and exceedingly variable grass. Some forms seem distinct enough to be 

 considered species. The most common forms are: 



*192. P. dichotomum commune S. Wats. 



*193. P. dichotomum fasciculatum S. Wats. 



*194. P, dichotomum gracile S. Wats. Th. 



195. P. agrostoides Muhl. Long Panicum. Specimen in the College Herb., col- 

 lected by Dr. Cooley, at Washington, Macomb Co. Only locality known in the State. 



196. P. flexile (Gattinger) Scrib. Wiry Panicum. Detroit, 0. A. Farwell; 

 Port Huron, C. K. Dodge; Manchester, C. F. Wheeler. 



*196a. P. macrocarpon Le Conte. Detroit, 0. A. Farwell. 

 *197. P. implicatum Scribn. Keweenaw Co., O. A. Farwell. 



*198. P. maculatum Ashe. "Formerly included in P. dichotomum." St. Clair 

 Co., C. K. Dodge. 



199. P. polyanthes Schul. Small-fruited Panicum. P. microcarpon Muhl. 

 Washington, Macomb Co., Dr. Cooley. 



200. P. miliaceum L. Millet. Detroit and Keweenaw Co., 0. A. Farwell. 



201. P. nitidum Lam. Shining Panicum. Washington, Macomb Co., Dr. Cooley; 

 Keweenaw Co., 0. A. Farwell; Manistee, F. P. Daniels. 



202. P. proliferum Lam. Manistee, F. P. Daniels. 



*203. P. Porterianum Nash. Porters Panicum. P. latifolium Walt. Rich woods. 

 Northward to Oscoda Co. Common. L. P. 



*204. P. pubescens Lam. Hairy Panicum. Common. C. & S. 



*205. P. Scribnerianum Nash. Scribner's Panicum. P. scoparium S. Wats. Not 

 Lam. Hubbardston. Along the R. R. between St. Johns and Muir, northward to 

 Baldwin; Bay Co., G. M. Bradford; Detroit, O. A. Farwell. Frequent in light sandy 

 soil. Th. 



*206. P. sphaerocarpon Ell. Round-fruited Panicum. P. microcarpon sphaero- 



