LIST OF HIGHER SEED-PRODUCING PLAJS TS. 507 



Fl. Can. I, 208; Coult., Fl. Colo. 145: Upham, Fl. Minn. 77; Wats., King 

 Exp. 163; Roth. Wheel. Exp. 141; Gray, Syn. Fl. I, 2, 118; Coult., Fl. Tex. 

 184. 



North America: 64 N. lat. in Brit. Col. to Red and 

 Saskatchewan valleys; S. to Colo, and Tex. and Mex. ; W. to 

 Sierra Nevada mts. ; E. to C. Minn, and Neb. 



Minn, valley: S. W. and W. districts; prairies, road- 

 sides and fields. 



HERB. : Sheldon 1433, Pipestone Co. ; Leiberg 35, Rock 

 Co. 



DIPLOGON RAP. Am. Mo. Mag. (Jan. 1818). 

 Chrysopsis NUTT. Gen. II, 150 (1818). 



Ammodia, Macronema (parti, Pityopsis NUTT. Trans. Phil. 

 Soc. ser. 2, VII, 321, 592, 317 (1841). 



Hectorea DC. Prodr. V, 95 (1836). 

 Heyfeldera Scn.-BiP. Flora 35 (1853;. 



Baillon, Hist. PL VIII, 155 (sub Hysterionica)', Benth and Hook., Gen. 

 PL II, 252; Engler and Prantl, Nat. Pflanz. IV, 5, 149 (Hoffmann); Durand, 

 Ind. Gen. Phan. 193; O. Kuntze, Kev. Gen. I, 333. 



Living species: 20 ; North America; 12 (Gray); 13 

 (Hoffmann); E. Sts., 6; S. Sts., 7-9; California, 4; Canada, 1; 

 W. Tex., 3. 



Diplogon villosum (PURSH) OK. Rev. Gen. I, 334 (1891). 

 Amellus viltosus PURSH, Fl. Am. 564 (1814). 



Diplopappus villosus and hispidus HOOK. Fl. Bor.-Am. II, 22 (1840). 

 Chrysopsis villosa NUTT. Trans. Phil. Soc. VII, 317 (1841). 

 C. canescens T. and G. Fl. II, 256 (1841 1. 

 C. echioides BENTH. Bot. Sulph. 25 (1844). 



Wats, and Coult., Gray's Man., 6 ed. 245; Webb., Fl. Neb. 149; Chap., 

 Fl. S. St. 217; Coult., Fl. Colo. 145; Upham, Fl. Minn. 78; Mac., Fl. Can. 

 I, 209; Roth., Wheel. Exp. 141; Wats., King Exp. 164, 422; Cov., Fl. Ark. 

 190; Engl. Hoffmann, Nat. Pflanz. IV, 5, 149; Gray, Syn. Fl. I, 2, 122; 

 Coult., Fl. Tex. 185. 



North America: Peace and Saskatchewan regions to 

 Ills, and Alabama; W. to Brit. Col., Calif., Nev. and Colo. 



Minn, valley: Throughout; dry fields, prairies and 

 forest openings. 



HERB. : MacMillan 7, Glenwood; Sheldon 1369, Lake 

 Benton; Bollard 640, Chaska; Ballard 377, Jordan, Scott Co. ; 

 Bollard 181, Jordan, Scott Co. ; Taylor 744, Glenwood; Herrick 

 153, Minneapolis; Sandberg 308, Goodhue Co.; Kassube 134, 

 Minneapolis; Oestlund 93, Minneapolis; MacM. and Sheld. 46, 

 Brainerd; Herb. Wickersheim 78, Idlewild, Lincoln Co. ; Herb. 

 Moyer 130, Apple ton. 



