Britton, Nathaniel Lord,  1859-1934. <br/><br/>
An illustrated flora of the northern United States and Canada and the British Possessions  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. 
 - New York,  Charles Scribner's Sons,  1898 
 - 3 v.  illus. 
<br/><br/>v. 1. Ophioglossaceae to Polygonaceae; ferns to buckwheat.--v. 2. Amaranthaceae to Loganiaceae; amaranth to polypremum.--v. 3. Gentianaceae to Compositae; gentian to thistle. 
<br/><br/><label>ISBN: </label>0486226425 (v. 1) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany--United States.<br/>Botany--Canada.<br/>Plants--Identification.