Pteriophytes and gymnosperms  
edited by K.U. Kramer,  P.S. Green; illustrated by E. Gotz.  
 - Berlin   Springer Verlag  1990 
 - xii, 404p.: ill.; 28cm 
 - (The Families and genera of vascular plants ; v.1). .
<br/><br/><label>Dewey Class. No.: </label>583.012  / P92P