78 



The Vegetation of the 



From northwest 8: 



Ludwigia polycarpa. 

 Aster junceus. 

 Artemisia biennis. 

 Habenaria leucophsea. 



From north 2: 

 Oarex arida. 



Trillium nivale. 

 Eragrostls Frankii. 

 Hordeum 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: 



Aslmina triloba. 

 Grleditschia triacanthos. 

 Amorpha fruticosa. 

 Boltonia asteroides. 

 Eclipta alba. 

 Eudbeckia triloba. 



From southwest 4: 



Aster sericeus. 

 Parthenium integrifolium. 



From west 2: 

 Helianthus laetiflorus. 



From northwest 1: 

 Spiraea Aruncus. 



Lepachys pinnata. 

 Coreopsis tripteris. 

 Euellia strepens. 

 Ipomoea lacunosa. 

 Euphorbia commutata. 



Lippia lanceolata. 

 Euphorbia dentata. 



Melica mutica. 



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

 eastward. 



Delphinium tricorne. 

 JefOersonia diphylla. 

 Napaea dioica. 

 Hibiscus militaris. 

 Bhamnus lanceolatus. 

 Aesculus glabra. 

 Trifolium reflexum. 

 Psoralea onobrychis. 

 Desmodium sessilifolium. 

 Gymnocladus canadensis. 

 Spiraea lobata. 

 Agrimonia par vi 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. 



