Supplement to Catalogue of Arkansas Plants 97 



Equisetum pracaltum Raf. (E. robust um (A. Br.) 

 A. A. Eaton.) Includes the plants formerly referred 

 to E. hyemale. Along sandy river banks. 



Isoetaceae : 



Isoetes Buileri Engelm. Little Rock, on "Pu- 

 laskite," Fourche Mountain; Eureka Springs, Car- 

 roll Co. (Bush). 



Isoetes melanopoda J. Gay. In springy ground, 

 top of Magazine Mountain, Logan Co. ; 24921 Hot 

 Springs, Garland Co. ; Farmington, Washington Co. 



MONOCOTYLEDONAE. 



Sparganiaceae: 



Sparganium amerlcanum Nutt. Prairie View, Wash- 

 ington Co. ; 10598 Washington, Hempstead Co. ; 8358 

 Ashdown, Little River Co. 



AHsmaceae: 



Sagittaria longirostra (Micheli) J. G. Sm. Fayette- 

 ville, Washington Co.; 10599 Washington, Hemp- 

 stead Co. 



Sagittaria papittosa Buch. 25043 Hazen, Prairie Co. 



Graminae: 



Erianthus strict us Baldw. Fulton, Hempstead Co. 

 (4386 Greenman). 



Pas pal um distichum L. Fulton, Hempstead Co. 

 (4387 Greenman). 



Paspalum circulare Nash. 6363 Beaver, Carroll Co. 



