Correll, Donovan Stewart,   1908- <br/><br/>
Native orchids of North America north of Mexico / 
by Donovan Stewart Correll ; with ill. by Blanche Ames Ames and Gordon Winston Dillon ; cultural notes contributed by Edgar Theodore Wherry and John Vertrees Watkins ; foreword by Charles Schweinfurth 
 - xv, 399 p. ;  27 cm. 
<br/><br/>Incluye referencia bibliográfica: p. [390]-393 
<br/><br/><label>ISBN: </label>0804709998 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ORQUIDEAS--IDENTIFICACION--CANADA<br/>ORQUIDEAS--IDENTIFICACION--ESTADOS UNIDOS
<br/><br/><label>Dewey Class. No.: </label>C 584.15097  / Co66n