An illustrated flora of the northern United States and Canada from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian by Nathaniel Lord Britton and Addison Brown
Reprint of the 1913 ed. which has title: An illustrated flora of the northern United States, Canada and the British possessions
Contents:
v. 1. Ophioglossaceae to Polygonaceae; ferns to buckwheat.--v. 2. Amaranthaceae to Loganiaceae; amaranth to polypremum.--v. 3. Gentianaceae to Compositae; gentian to thistle
