Heusser, Calvin, <br/><br/>
Pollen and spores of Chile :  modern types of the Pteridophyta, Gymnospermae and Angiopermae / 
Calvin Heusser. 
 - 167 páginas :  ilustraciones. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ANGIOSPERMAS<br/>BOTANICA<br/>EMBRIOLOGIA<br/>GIMNOSPERMAS<br/>POLEN
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Chile
<br/><br/><label>Dewey Class. No.: </label>581.46