﻿DISCOVERIES AND COLLECTIONS. 



Thus far the fossil cycads from the Black Hills Rim have been assigned, on 

 the basis of their macroscopic characters only, to twenty-nine species referred by 

 Ward to the genus Cycadeoidea of Buckland. The localities of the Black Hills 

 types are indicated in the subjoined table : 



Occurrence of Black Hills Cycad Types. 



Of the Black Hills types, Cycadeoidea dacotensis Macbride and C. McBridei 

 Ward are in the museum of the State University of Iowa, at Iowa City. Those 

 in the United States National Museum at Washington are : Cycadeoidea colossalis, 

 minnekahtensis, pulcherrima, Colei, Paynei, Jenneyana, excelsa, and occidentalis 

 (all Ward's species). 



