338 METASPERMAE OF THE MINNESOTA VALLEY. 



PTELEA LINN. Gen. 78 (1737). 



Bellucia ADANS. Fam. PI. II, 344 (1763). 



Baillon, Hist. PI. IV, 482; Benth. and Hook., Gen. PI. I, 301; .Durand, 

 Ind. Gen. Phan. 55; Gray III. Gen. II, 149; Schenck, Palaeophyt. 534; Sarg. 

 N. A. Silva I, 75. 



Living species: 7; temperate N. America and 8. Mex- 

 ico. W. Tex., 2; Mid. Calif., 1; S. Sts., 4; E. Sts., 1; Canada, 

 1; Rocky mts., 1; PI. Wheel., 1; PL King, 1. 



Fossil species: 7-10; Tertiary; Oligocene, Europe 

 (Heer) ; Greenland (Heer) ; Sagor (Ettinghausen) ; Hungary ( Unger). 



Ptelea trifoliata LINN. Spec. 118 (1753). 



P. pentaphylla FABR. Enum. PI. Helmst. 416 (1759). 

 P. viticifolia SALISB. Prodr. 68 (1796). 

 P. tomentosa RAF. Fl. Lud. 108 (1817). 



Wats, and Coult., Gray's Man. 6 ed. 107; Britt., Fl. N. J. 74; Wats., 

 Bibl. Ind. I, 154; Upham, Fl. Minn. 37; Chap., Fl. S. St. 66; Mac., Fl. Can. 

 I, 93, 05; Coult., Fl. Tex. 54; Sarg., Silva, I, 76; Cov., Fl. Ark. 171. 



North America: S. Ont. and Long Island to Fla. ; W. 

 to Minn. , Ark. and Cent, and W. Tex. 



Minn, valley: S. E. districts?; doubtful, but reported 

 from S. E. portion of State. No Minn, specimens have been 

 seen. 



LVII. POLYGALACEAE. Polygala Family. 



Endlicher, Gen. PI. 1077 (1840); Benth. and Hook., Gen. PL I, 134 

 (1862); Baillon, Hist. PI. V, 71 (1874). 



Genera: 11; temperate and warmer regions. 

 Species: 400; principally small herbs. 



POLYGALA LINN. Gen. 567 (1737). 



Solomonia LOUK. Coch. Fl. 14 (1790). 



Psycanthus and Triclisperma RAF. Speech. 116, 117 (1814). 



Epirhizanthus BLUME, Cat. Buit. 25 (1823). 



Badiera, Brachytropis, Chamaebuxus, Senega DC. Prodr. 

 I, 321 seq. (1824). 



Isolophus, TricoTophus SPACH, Suit. Buff. XI, 112 (1842). 



Semeiocardium HASSK. Hort. Bogor. 227 (1844). 



Phylace NOB. ex Hassk. 1. c. (1844). 



Acanthocladus KLOTZSCH. PI. Sell. (1846?). 



Penaea PLUM. Gen. 22 (1703). 



Baillon, Hist. PL V, 87; Benth. and Hook., Gen. PI. I, 136, 137, 974; 

 Durand, Ind. Gen. Phan. 27; Gray, 111. Gen. II, 221. 



Living species: 275 ; cosmopolitan. Europe, 21; 

 Russia, 8; Russian Europe, 8; N. America, 36; S. Sts., 26-28;. 

 Calif., 3; Canada, 6; E. Sts., 15-17; PI. Wheel., 2; W. Tex., 8.. 



