462 METASPERMAE OF THE MINNESOTA VALLEY. 
North America: Red River prairie, 49° N. lat. to 
Minn. valley, near Appleton; S. and W. to Dak., Col., Neb. and 
Tex. 
Minn. valley: S. W. district and probably N. W.; 
dry banks and knolls. 
Hers.: Menzel 3, Pipestone; Herb. Moyer 264, Monte- 
video. 
Penstemon gracilis Nutr. Gen. II, 52 (1818). 
P. pubescens var. gracilis GRAY, Proc. Am. Acad. V1, 57 (1862). 
Chelone gracilis SPRENG. Syst. II, 813 (1825). 
Wats. and Coult., Gray’s Man. 6 ed. 382: Gray, Syn. Fl. II, 1, 267; 
Webb., Fl. Neb. 137; Coult., Fl. Colo. 277; Mac., Fl. Can. I, 356; Upham, 
Suppl. Minn. 86. 
North America: Minn., Man. and Saskatchewan to 
Wyoming and Colo. 
Minn. valley: Throughout; infrequent; open places, 
banks and knolls. 
HERB: Menzel 8, Pipestone; Ballard 244, Jordan, 
Scott Co.; Ballard 882, Jordan; Taylor 789, Glenwood; Sandberg 
609, Cannon Falls; Herrick 341, Minneapolis; Holzinger 297, 
Winona Co.; Kassube 278, Minneapolis; Herrick 345, Minne- 
apolis. 
Penstemon hirsutus (Linn.) WILLD. Spec. ITI, 227 (1800). 
Chelone hirsutus LINN. Spec. 849 (1753). 
C. pentstemon LINN. Mant. 415 (1767). 
Pentstemon pubescens SOLAND. Ait. Hort. Kew. II, 360 (1789). 
Wats. and Coult., Gray’s Man. 6 ed. 381; Mac., Fl. Can. I, 356; Upham, 
Fl. Minn. 99; Chap., Fl S. St. 290; Britt., Fl. N. J. 184; Wats., King Exp. 
454; Cov., Fl. Ark. 207; Gray, Syn. Fl. II, 1, 268; Engl. Wettst., Nat. 
Pflanz. IV, 3, 64; Coult., Fl. Colo. 309. 
North America: Ont. toS. Man., Minn. and Iowa; S. 
to Maine, N. J., Fla. and Tex. 
Minn. valley: W. district; high dry prairies; also N. 
E. and S. E.; open places. 
_ Heres.: Sheldon 1566, Lake Benton; Kassube 161, 
Minneapolis; Herrick 198, Minneapolis; Herb. Wickersheim 91, 
Idlewild; Gedge 20, Moorhead; Wickersheim 136, Lake Benton; 
137, Lake Benton (the last two Nos. are apparently intermedi- 
ate forms between P. teretiflorus Nutt. and P. hirsutus (Linn.), 
having the foliage of the former and the flowers and pubescence 
of the latter.—Sheldon. 
MIMULUS Linn. Act. Ups. 82 (1741). 
Eunanus Bentu. DC. Prodr. X, 374 (1846). 
Diplacus Nutr. Ano. Nat. Hist. 1, 1, 37(—_ ). 
