Van Horn, Gene S. <br/><br/>
The Taxonomic status of pentachaeta and chaetopappa with a revision of pentachaeta /    
Gene S. Van Horn. 
 - Berkeley :   University of California Press,   1973. 
 - 41, [8] p. :    ill. ;    26 cm. 
 - University of California Publications in Botany ; v.65.   .
<br/><br/>Includes bibliographical references (p. 40-41). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Pentachaeta.----California.----<br/>Chaetopappa.----California.----<br/>Botany ----California.----
<br/><br/><label>Dewey Class. No.: </label>583.55