lOR APPENDIX. 



20. Triodanis RiTPESTRis 906, this is very 

 near to the Campanula flagellaris of Kunth, 

 perhaps of this Genus. His Mexican C. perfo- 

 liata appears somewhat different from ours by 

 flowers geminate and ternate; yet Torrey would 

 have all these to be varieties ! which is the type 

 then and the primordial form? 



21. Helenium DiscovATUM 942, compare it 

 with H, mexicajium of Kunlh, too shortly noti- 

 ced by him. 



END or THIS ri.OHA. 



