Nowicke, John W. <br/><br/>
Pollen morphology and phylogenetic relationships of the berberidaceae 
John W.Nowicke and John J.Skvarla 
 - Washington  Smithsonian Institution Press  1981 
 - 83p. ill. 26cm. 
 - Smithsonian contributions to botany  no.50 .
<br/><br/><label>LCCN: </label>80-21960 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Berberidaceae<br/>Palynotaxonomy