196 METASPERMAE OF THE MINNESOTA VALLEY. 



HlT3IlTLrS Linn. Gen. 750 (1737). 



Lupiiliis Gaertn. Fruct. I. 358 (1788). 

 Baillon, Hist. PL VI, 216; Benth. and Hook., Gen. PI III, 356; Durand, 

 Ind. Gen. Pkan. 374; Engler and Prantl, Nat. Pflcmz. 3, I, 96 (Engler). 

 Schenck, Palaeophyt. 476. 



Living species: 2; N. temperate regions. 1, cosmo- 

 politan; 1, China and Japan. 



Fossil species: 2-3; Pliocene, France (Saporta). 



Humiilus lupulus Linn. Spec. 1457 (1753). 

 Cannabis lupulus Scop. Fl. Cam. II, 263 (1772). 

 Lupulus communis Gaertn. Fruct. 75 (1788). 

 Humulus americanus Nutt. Journ. Acad. Phil. V, 181 (1840). 

 Wats, and Coult., Gray's Man. 6 ed. 464; Britt., Fl. N. J. 216; Webb., 

 Fl. Neb. Ill; Mac, Fl. Can. I, 429; Upham, Fl. Minn. 125; Chap., Fl. S. 

 St. 414; Coult., Fl. Colo. 331; Nym., FL Eur.; Hook., Fl. Gt. Brit. 363; 

 Herd., Fl. Eur. Russ. 118; Wats., King Exp. 321; Roth., Wheel. Exp. 239; 

 Cov., Fl. Ark. 219; Engl., Nat. Pflanz. Ill, 1, 97; Hart., Fl. Scand. I, 345. 

 North America: N. S., Q., Ont. to Man., 53^ N. lat., 

 Brit. Col. ; S. to N. Mex. in mts. ; E. across cont. to N. Eng. 

 and Ga. Introd. in Atl. states ? 



Minn, valley: Throughout; climbing on underbrush or 

 trees; banks of streams and edges of woods. 



Herb.: Sheldon 1039, Sleepy Eye; Ballard 302n, Jor- 

 dan, Scott Co. ; Kassuhe 216, Minneapolis; Sandberg 496, Red 

 Wing; Sandberg 497, Red Wing. 



XXIX. URTICACEAE. Nettle Family. 



Endlicher, Gen. PL 282 (1840); Benth. and Hook., Gen. PI. Ill, 343 

 <1880)— Tribus VII, Urticeae; Engler in Engler and Prantl, Nat. Pflanz. 3, I^ 

 98 (1888). 



Genera: 41 living; 5 fossil; tropics and sparingly 



without; to Auckland Island and to 4500 m. in Himalayas and 



Andes. 



Species: 500 ±; 33 per cent. New World; 33 percent. 

 Asia; 14 per cent. Africa; 14 per cent. Oceanica; 3-4 per 

 cent. Europe (Engler). Fossil species, 12-15, Cretaceous and 

 Tertiary. 



URTICA Linn. Gen. 710 (1737). 

 Baillon, Hist. PI. Ill, 517; Benth. and Hook., Gen. PI. Ill, 381; Du- 

 rand, Ind. Gen. Pkan. 377; Engler and Prantl, Nat. Pflanz. 3, I, 104 (Eng- 

 ler): Schenck, Palaeophyt. 483. 



Living species: 30±; temperate regions. Europe, 6; 

 Russia, 5; Russian Europe, 2; N. America, 10±; Canada, 3; 

 E. Sts., 2; PI. King, 1; PI. Wheel, 4; California, 4. 



Fossil species: Miocene of Steirmack (Ettinghatisen). 



