Statistics of the Flora of the Northern States 219 



Table continued. 



Orders. 



JIamamelacece. 

 Umbelliferce. 



Cornacece. 

 Caprifoliacece. 



Bubiacece. 



Composite?. 



Extra-European Genera 

 of Eastern N. Anier 



Boykinia. 



Sullivantia. 



Heuchera. 



Mitella. 



Tiarella. 



Itea. 



Hydrangea. 



Philadelphia. 



Hamamelis. 



Fothergilla. 



Liquidambar. 



Crantzia. 



Polytaenia. 



Archeraora. 



Tiedemannia. 



Thaspium. 



Zizia. 



Discopleura. 



Cryptotaenia. 



Osmorhiza. 



Eulophus. 



Erigenia. 



Nyssa. 



Symphoricarpus. 



Diervilla. 



Triosteum. 



Sperm acoce. 



Diodia. 



Cephalanthus. 



Mitchella. 



Oldenlandia. 



Mitreola. 



Spigelia. 



Polypremum. 



Vernonia. 



Elephantopus. 



Sclerolepis. 



Liatris. 



Kuhnia. 



Mikania. 



Conoclinium. 



Adenocaulon. 



Sericocarpus. 



Diplopappu3. 



Boltonia. 



Brachychseta. 



Bigelovia. 



Also occurring in W. N 

 America, i. e. in Ore 

 gon and California. 



Boyk 



mia. 



Heuchera. 



Mitella. 



Tiarella. 



Philadelphia. 



Thaspium. 



Osmorhiza. 



Symphoricarpus. 



Cephalanthus. 



Adenocaulon. 

 Sericocarpus. 

 Diplopappus. 



Occurring in E. Asia, i. e. 

 in Japnn, China, or 

 Himalayas. 



Mitella. 

 Tiarella. 



Hydrangea. 



Philadelphus. 



Hamamelis. 



Liquidambar. 



Archemora. 



Cryptotaenia. 

 Osmorhiza. 



Diervilla(Weigela) 



Mitchella. 



Oldenlandia. 



Mitreola. 



Vernonia. 

 Elephantopus. 



Diplopappus, 



