LIST OF HIGHER SEED-PRODUCING PLANTS. 5381 
Adenocaulon bicolor Hook. Bot. Misc. I, 119 (1849). 
Wats. and Coult., Gray’s Man. 6 ed. 269; Upham, Fl. Minn. 70; Mac., 
F). Can. I, 239; Engl. Hoffmann, Nat. Pflanz. 1V, 5, 206; Gray, Syn. Fl. 
I, 2, 237. 
Himalayas to Japan. 
North America: N. of L. Superior to lat. 52° N.; W. 
to Rockies, Cascade range, Brit. Col., Vancouver; S. to Calif. 
and C. Minn. 
Minn. valley: Reported from N. edge; rare; moist or 
deep woodland. 
HERB.: Bailey 296, St. Louis river. 
POLYMNIA Linn. Diss. Chen. 1181 (1751). 
Alymnia Neck. Elem. I, 31 (1790). 
Polymniastrum Lam. II]. 712 (1793). 
Baillon, Hist. Pl. VIII, 234 (sub Silphium); Benth. and Hook., Gen. Pl. 
II, 346; Durand, Ind. Gen. Phan. 206; Engler and Prantl, Nat. Pflanz. IV, 
5, 217 (Hoffmann). 
Living species: 10-12; Buenos Ayres to Brit. Col. 
Canada, 1; E. Sts., 2; S. Sts., 2; W. Tex. 1. 
Polymnia canadensis Linn. Amoen. ITI, 15 (1756). 
P. canadensis var. discoidea GRAY, Man. 3 ed. 248 (1857). 
Wats. and Coult., Gray’s Man. 6 ed. 269; Upham, Fl. Minn. 78; Chap., 
Fl. S. St. 219; Mac., Fl. Can. I, 239; Cov., Fl. Ark. 193; Gray, Syn. FI. I, 
2, 238. 
North America: Ont. and Conn. to mts. of N. Car.; W. 
to Minn., Kan., Mo. and Ark. 
Minn. valley: S. E. district; rare; ravines, woods and 
damp edges of thickets. 
Hers.: Sandberg 309, Red Wing; Holzinger 120, Wi- 
nona Co.; Sandberg 310, Red Wing; Holzinger 121, Winona Co. ; 
and in variety radiata Gray, Sheldon 653, Waseca. 
SILPHIUM Linn. Gen. Corr. 981 (1787). 
Baillon, Hist. Pl. VIII, 234 (incl. Philoglossa DC.,-Berlandiera DC., 
Engelmannia T. and G., Schizoptera Turcz., Polumnia Linn.); Benth. and 
Hook., Gen. Pl. II, 350; Durand, Ind. Gen. Phan. 207; Engler and Prantl, 
Nat. Pflanz. IV, 5, 218 (Hoffmann). 
Living species: 12-138; N. America. E. Sts., 6-7; S. 
Sts., 8-9; Rocky mts., 1; Canada, 2; W. Tex., 6. 
Silphium perfoliatum Linn. Spec. 2 ed. 1301 (1762). 
. connatum LINN. Mant. 574 (1767). 
. tetragonum and scabrum MOENCH, Meth. 606 (1794). 
. conjunctum WILLD. Enum. 633 (1809). 
. hornemanni SCHRAD. Hort. Gott. (1809). 
. erythrocaulon BERNH. Spreng. Syst. IIT, 630 (1826). 
RRRRM 
