78 



The Vegetation of the 



From northwest 8: 



Ludwigia polj^carpa. 

 Aster jmiceus. 

 Artemisia biennis. 

 Habenaria leucophsea. 



From north 2: 

 Carex arida. 



Trillium nivale. 

 Eragrostis Frankii. 

 llordeum pratense. 

 Hordum jubatum. 



Poa sylvestris. 



Of 50 species, that reach the AUeghannies in the latitude of Illinois, 

 but do not pass over, are probably southern 11: 



Asimina triloba. 

 Gleditschia triacantbos. 

 Amorpba fruticosa. 

 Boltonia asteroides. 

 Eclipta alba. 

 Rudbeckia triloba. 



From southwest 4: 



Aster sericeus. 

 Parthenium integrifolium. 



From west 2: 

 Helianthus laetiflorus. 



From northwest 1 : 

 Spiraea Aruncus. 



Lepachys pinnata. 

 Coreopsis tripteris. 

 Ruellia strepens. 

 Ipomoea lacunosa. 

 Eupborbia commutata. 



Lippia lanceolata. 

 Eupborbia dentata. 



Melica mutica. 



The rest (32 species) extend from the AUeghannies westward, but not 

 eastward. 



Delphinium tricorne. 

 Jeffersonia diphylla. 

 Napaea dioica. 

 Hibiscus militaris. 

 Rhamnus lanceolatus. 

 Aesculus glabra. 

 Trifolium reliexum. 

 Psoralea onobrychis. 

 Desmodium sessilifolium. 

 Gymnocladus canadensis. 

 Spiraea lobata. 

 Agrimonia parvi flora. 

 Rosa Setigera. 

 Heuchera hispida. 

 Galium concinnum. 

 Eupatorium altissimum. 



Aster azureus 

 Solidago Ohioensis. 

 Polymnia canadensis. 

 Echinacea purpurea. 

 Helianthus doronicoides. 

 Helianthus occidentalis. 

 Cacalia reniformis. 

 Cacalia atriplicifolia. 

 Steironema longifolia. 

 Pycnanthemum pilosum. 

 Scutellaria versicolor. 

 Phlox maculata. 

 Phlox glaberrima. 

 Ellisia nyctelaea. 

 Cuscuta inflexa. 

 Cypripedium candidum. 



