Appendix to the catalogue of the flora of Nebraska/ 
Herbert J Webber 
 - Contributions from the Shaw School of Botany ;  no. 9. .
 - Contributions from the Shaw School of Botany ;  no. 9. .
<br/><br/> Reprinted from: Transactions of the Academy of Sciences, St. Louis, vol. 32, pp. 1-47. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Botany--Nebraska.