76 METASPERMAE OF THE MINNESOTA VALLEY. 
Minn. valley: Throughout; frequent; riverbanks and 
lake shores. 
HerB.: Sheldon 1207, New Ulm; Sheldon 1089, Spring- 
field; Ballard 484, Prior’s Lake, Scott Co.; Sandberg 578, 
Goodhue Co. 
EATONIA Rar. Journ. Phys. LXXXIX. 104 (1819). 
Reboulea KunruH, Rev. Gram. 341 (1835). 
Colobanthus Trin. Mem. Acad. Petr. 6, IT, 66 (1845). 
Benth. and Hook., Gen. Pl. III. 1181; Engler and Prantl, Nat. 
Pflanz, 2, 11, 70(Hackel ; Durand, Ind. Gen. Phan. 476. 
Living species: 3; N. America. E. Sts., 3; Canada, 2; 
Rocky mts., 1; California, 1; S. Sts., 8; Pl. Wheel., 1; Pl. 
King., 1. 
Eatonia obtusata (MicHx.) Gray, Man. ed. V. 626 (1868). 
Aira obtusata Micux. Fl. N. Am. I, 62 (1803). 
A. truncata MunL. Gram. 83 (1817). 
?Reboulea gracilis KUNTH, Enum. (1833). 
Koeleria truncata Torr. FI. N. Y. II, 469 (1848). 
Reboulea obtusata GRAY, Man. ed. I, 591 (1848). 
Wats. and Coult., Gray’s Man. 6 ed. 659; Britt., Fl. N. J. 293; Webb., 
Fl. Neb. 102; Mac., Fl. Can. II, 218, 394; Coult., Fl. Colo. 419; Wats. Fl. 
Calif. II, 302; Chap., Fl. So. St. 560; Upham, Fl. Minn. 166; Engl., Hackel, 
‘Nat. Pflanz. II, 2, 70; Wats., King Exp. 383; Roth., Wheel. Exp. 289; Cov., 
Fl. Ark. 236. 
North America: N. Penn. and N. J. to Fla.; W. to 
Lake Huron, Minn., Saskatchewan, Oregon and Arizona. S.:to 
Ark. and N. Mex.. 
Minn. valley: Forest district and S. W.; dry soil and 
openings in forest. 
HeErs.: Sheldon 867,Sleepy Eye; Leiberg 96, Rock Co. 
Eatonia pennsylvanica (DC.) Gray, Man. ed. V, 626 (1868). 
Ivoeleria (?) pennsylvanica DC. Cat. Monsp. (1813). 
Aira mollis MuHL. Gram. 81 (1817). 
A, triflora Evu. Sk. I, 154 (1821). 
?Reboulea gracilis KUNTH, Enum. (1833). 
BR. pennsylvanica GRAY, Man. ed. I, 591 (1848). 
Wats. and Coult., Gray’s Man. 6 ed. 660; Britt., Fl. N. J. 293; Mac., Fl. 
Can. IT, 218; Webb., Fl. Neb.102; Upham, Fl. Minn. 166; Chap., Fl. So. 
St. 560; Engl., Hackel, Nat. Pflanz. II, 2,70; Mac., Fl. Can. II, 2, 394; 
Cov., Fl. Ark. 236. 
North America: N. Br. to Carolinas; W. to Man., 
Hudson Bay, Brit Col. and Rocky mts.; S. to Neb., Nev., Ark. 
and Tenn. 
Minn. valley: Forest district and S. W.; meadows 
and open, damp wovdland. 
