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

 - New York  American Book Co.  1908 
 - 926 p.  il.; 22 cm. 
<br/><br/> \"Rearranged and extensively rev. by Benjamin Lincoln Robinson and Merritt Lyndon Fernald.\"  Incluye glosario e índices 
<br/><br/><label>Subjects--Topical Terms: </label><br/>SPERMATOPHYTA<br/>ANGIOSPERMAS<br/>SPTERIDOPHYTA<br/>CANADA<br/>MANUALES<br/>ESTADOS UNIDOS<br/>HELECHOS