338 METASPERMAE OF THE MINNESOTA VALLEY. 
PTELEA Linn. Gen. 78 (17387). 
Bellucia ApAns. Fam. PI. II, 344 (1763). 
Baillon, Hist. Pl. IV, 482; Benth. and Hook., Gen. Pl. I, 301; Durand, 
Ind. Gen. Phan. 55; Gray Ill. Gen. II, 149; Schenck, Palaeophyt. 534; Sarg. 
N. A. Silva I, 75. 
Living species: 7; temperate N. America and &. Mex- 
ico. W. Tex., 2; Mid. Calif., 1; S. Sts., 4; E. Sts., 1; Canada, 
1; Rocky mts., 1; Pl. Wheel., 1; Pl. King, 1. 
Fossil species: 7-10; Tertiary; Oligocene, Europe 
(Heer); Greenland (Heer); Sagor (Ettinghausen) ; Hungary (Unger). 
Ptelea trifoliata Linn. Spec. 118 (1758). 
P. pentaphyllia FABR. Enum. Pl. Helmst. 416 (1759). 
P. viticifolia SALIss. Prodr. 68 (1796). 
P. tomentosa RAF. FI. 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 8S. E. portion of State. No Minn. specimens have been 
seen. 
LVII. POLYGALACEAE. Polygala Family. 
Endlicher, Gen. Pl. 1077 (1840); Benth. and Hook., Gen. Pl. I, 134 
(1862); Baillon, Hist. Pl. V, 71 (1874). 
Genera: 11; temperate and warmer regions. 
Species: 400; principally small herbs. 
POLYGALA Linn. Gen. 567 (1787). 
Solomonia Lour. Coch. FI. 14 (1790). : 
Psycanthus and Triclisperma Rar. Specch. 116, 117 (1814). 
Epirhizanthus BLums, Cat. Buit. 25 (1823). 
Badiera, Brachytropis, Chamaebuxus, Senega DC. Prodr. 
I, 321 seq. (1824). 
Isolophus, Tricolophus Spacu, Suit. Buff. XI, 112 (1842). 
Semeiocardium Hasskx. Hort. Bogor. 227 (1244). 
Phylace Nor. ex Hassk. 1. c. (1844). 
Acanthocladus KuLorzscnH, PI. Sell. (1846?), 
Penaea PLumM. Gen. 22 (1703). 
Baillon, Hist. Pl. V, 87; Benth. and Hook., Gen. Pl. I, 186, 187, 974: 
Durand, Ind. Gen. Phan, 27; Gray, Ill. 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; EH. Sts., 15-17; Pl. Wheel., 2; W. Tex., 8. 
