LIST OF HIGHER SEED-PRODUCING PLANS. 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 
0. 
DIPLOGON Rar. Am. Mo. Mag. (Jan. 1818). 
Chrysopsis Nutt. Gen. II, 150 (1818). 
Ammodia, Macronema (part), Pityopsis Nurr. Trans. Phil. 
Soc. ser. 2, VII, 321, 592, 317 (1841). 
Hectorea DC. Prodr. V, 95 (1836). 
Heyfeldera Scu.-Brv. 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. 198; O. Kuntze, Rev. 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 Purso, Fl. Am. 564 (1814). ( 
Diplopappus villosus and hispidus Hoox. FI. Bor.-Am. IT, 22 (1840). 
Chrysopsis villosa Nutr. Trans. Phil. Soc. VII, 317 (1841). 
C. canescens T. and G. FI. II, 256 (1841). 
C. echioides BENTH. Bot. Sulph. 25 (1844). 
Wats. and Coult., Gray’s Man., 6 ed. 245; Webb., Fl. Neb. 149; Chap., 
FI. 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; Ballard 640, Chaska; Ballard 377, Jordan, Scott Co.; 
Ballard 181, Jordan, Scott Co.; Taylor 744, Glenwood; Herrick 
158, 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, Appleton. 
