LIST OF HIGHER SEED-PRODUCING PLA^ fS. 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. ; Leiherg 35, Rock 

 Co. 



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

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



Ainiuodia, Macronenia {part), Pityopsis Nutt. Trans. Phil. 

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



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

 Heyfeldera Sch.-Bip. Flora 35 (1853;. 

 Baillon, Hist. PI. VIII, 155 {suh Hysterionica)\ Benth and Hook., Gen. 

 PL 11,252: Engler and Prantl, l^at. Pflanz. IV, 5, 149 (Hoffmann); Durand, 

 Ind. Gen. Phan. 193; O. Kuntze, Hev. 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 villosus PuRSH, Fl. Am. 564 (1814). 



Biplopappus 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. Hoflfmann, 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.: MacMillanl, Glenwood; SJieldon 1369, Lake 

 Benton; Ballard 640, Ch&skdi,; Ballard 377, Jordan, Scott Co.; 

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

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

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

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

 Moyer 130, Appleton. 



