LITERATURE CITED. 
(1) ALEFELD, F. G. C. 
1866. Landwirtschaftliche Flora... p. 75-76. Berlin. 
(2) AscHERSON, P. F. A., and GRAEBNER, PAUL. 
1898-99. Flora des Nordostdeutschen Flachlandes (ausser Ostpreussen). 
p. 432. Berlin. 
(3) Basey, C. M. P. 
1845. Flore Jurassienne... t. 1, p. 363. Paris. 
(4) Baker, J. G. 
1879. Leguminose. in Hooker, J. D. Flora of British India. vy. 2, 
p. 90. London. 
(5) Barats, G. B. 
1801. Elenco delle Piante Crescenti ne’ Contorni di Torino. p. 93. 
Torino. 
(6) BAUHIN, JOHANN. 
1651. Historia Plantarum Universalis... t. 2, p. 3838. Ebroduni. 
BAUHIN, KASPAR. 
(7) [1596.] Phytopinax... p. 661. Basilia. 
(8) 1623. Pinax... p. 330. Basilie Helvet. 
(9) BEssErR, W. S. J. G. von ; 
1809. Primitiae Florae Galiciae Austriacae Utriusque. pars. 2, p. 127. 
Viennae. 
(10) Bock, HirRonyMUs. 
1552. De Stirpium ...Commentariorum libri tres... p. 591. Ar- 
gentorati. 
(11) BoENNINGHAUSEN, C. M. F. von. 
1824. Prodromus Florae Monasteriensis Westphalorum ... p. 225. 
Monasterii. - 
BRAND, C. J. 
(12) 1907. Peruvian alfalfa: A new long-season variety for the Southwest. 
U. 8. Dept. Agr., Bur. Plant Indus. Bul. 118, p. 8. 
(13) 1911. Grimm alfalfa and its utilization in the Northwest. U. S. Dept. 
Agr., Bur. Plant Indus. Bul. 209, p. 26. 
(14) Briccs, L. J.. and SHantz, H. L. 
1914, Relative water requirement of plants. Jn Jour. Agr. Research, 
v. 8, no. 1, p. 61. 
(15) CHABRE, DOMINIQUE. 
1666. Stirpium Icones et Sciagraphia ... p. 165. Genevae. 
(16) Cusin, L. A., and ANSBERGUE, EpMf. — 
1869. Herbier de la Flore Francaise. [t. 5/6], pl. 1011. Lyon. 
(17) Datrparp, T. F. ) 
1749. Florae Parisiensis Prodromus ... p. 229. Paris. 
