54 UNIVERSITY OF MISSOURI STUDIES [^3^ 



44. ELEUSINE Gaertn. Crab grass. 



93. E. Indica (L.) Gaertn. Wire grass. 



Yards and waste places, bordering usually all paths. 

 Tropics of the Old World, thence as a weed to all warm 

 lands. 



45. TRIODIA R. Br. ISIEGLINGIA Bernh.: TRI- 



CUSPIS Beauv.: TRIDENS R. & S.]. 



94. T. cuprea Jacq. \Triodia seslerioides (Michx.) Benth.: 

 6'. seslerioides (Michx.) .Scribn.: Tricuspis seslerioides 

 (Michx.) Torr.: Trideiis seslerioides (Michx.) Nash]. 

 Tall red top. 



Fields and hilltops; abundant. 



Massachusetts and Florida to Kansas and Texas. 



46. ERAGROSTIS Host {NEERAGROSTIS- 

 Bush]. 



95. E. capillaris (L.) Nees. 

 Dry places; uncommon. 

 New Hampshire to Texas. 



96. E, Frankii Steud. 



Abundant along roadsides and in fields. 

 Connecticut to Minnesota and south to Louisiana. 



^y. E. pilosa (L.) Beauv. 



Yards and roadsides; frequent. 



Europe to Australia, thence to North America. 



98. E. Purshii Schrad. 



Common in yards, fields, roadsides and waste places. 

 Ontario and throughout the United States. 



99. E. major Host. Skunk grass. 



Abundant in cultivated and waste grounds: smaller forms, 

 are referable perhaps to E. minor Host. 

 Europe, thence throughout North America. 



100. E. pectinacea (Michx.) Nees. 



A very common autumnal weed in fields. 

 Massachusetts to Texas. 



