Gillespie, Lynn J. <br/><br/>
A contribution to the Guianan flora :  Dalechampia, Haematostemon, Omphalea, Pera, Plukenetia, and Tragia (Euphorbiaceae) with notes on subfamily Acalyphoideae / 
Lynn J. Gillespie and W. Scott Armbruster 
 - Washington, DC :  Smithsonian Institution Press,  1997 
 - iii, 48 p. :  ill. ;  28 cm. 
 - Smithsonian contributions to botany ;  no. 86 .
<br/><br/>Includes bibliographical references (p. 45-46) and indexes 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Euphorbiaceae--Classification--Guiana