Gray, Asa, 1810-1888.  Gray, Asa, 1810-1888. <br/><br/>
Gray's Manual of botany :  a handbook of the flowering plants and ferns of the central and northeastern United States and adjacent Canada. 

 - 8th (Centennial) ed., ill. / largely rewritten and expanded by Merritt Lyndon Fernald, with assistance of specialists in some groups, Corr. print., 1970 / corrections supplied by R.C. Rollins.  8th (Centennial) ed., ill. / largely rewritten and expanded by Merritt Lyndon Fernald, with assistance of specialists in some groups, Corr. print., 1970 / corrections supplied by R.C. Rollins. 
 - New York :  D. Van Nostrand Co.,  1970. 
<br/><br/> First ed. published in 1848 under title: A manual of the botany of the northern United States.  Includes indexes. 
<br/><br/><label>ISBN: </label>0442222505 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany -- United States.--Botany -- United States.<br/>Botany -- Canada.--Botany -- Canada.