Climate of Middle Illinois. 



77 



From west 20: 



Clematis Pitcheri. 

 Anemone decapetala. 

 Nasturtium sinuatum. 

 Psoralea floribunda. 

 Petalostemon violaceum. 

 Petalostemon candidum. 

 Amorpha canescens. 

 Lythrum alatum. 

 Solidago missouriensis. 

 Ckrysopsis villosa. 



From northwest 4: 



Viola delphinifolia. 

 Artemisia ludoviciana. 



From north 1: 

 Equisetum palustre. 



Echinacea angustifolia. 

 Helianthus rigidus. 

 Androsace occidentalis. 

 Mimulus Jamesii. 

 Gerardia grandiflora. 

 Verbena bracteosa. 

 Lithospermum angustifolium. 

 Oxybaphus nyctagineus. 

 Amarantus blitoides. 

 Equisetum Issvigatum. 



Troximon cuspidatum. 

 Stipa spartea. 



There are 49 species that extend eastward only to Ohio. Those 

 marked * occur in the southern Alleghannies, but do not reach those 

 mountains in the latitude of Illinois. 



From southeast may come 5: 



*Aster Shortii. 

 Solidago Riddellii. 

 *Silpliium perfoliatum. 



From south 20: 



Isopyrum biternatuin. 



Thelypodium pinnatifldum. 



Hypericum sphserocarpum. 

 *Ptelea trif oliata. 

 *Baptisia leueantha. 

 *Baptisia leucophsea. 



Spermacoce glabra. 

 *Vernonia fasciculata. 



Silphium lacinlatum. 

 *Silphium terebinthaceum. 



From southwest 10: 



Ammannia coccinea. 

 Silphium integrifolium. 

 Helianthus grosseserratus. 

 Verbesina helianthoides. 

 Prenanthes aspera. 



From west 4: 



Prenanthes racemosa. 

 Cuscuta glomerata. 



*Prenanthes crepidinea. 

 *rraxinus quadrangulata. 



Coreopsis aristosa. 



Oacalia tuberosa. 

 *Ruellia ciliosa. 



Verbena stricta. 



Onosmodium molle. 



Lithospermum latifolium. 

 *Gentiana pubera. 



Acerates longifolia. 



Carex crus corvi. 



Eragrostis pectinacea. 



Uonobea multifida. 

 Seymeria macrophylla. 

 Asclepias Sullivantii. 

 Diarhena americana. 

 Montelia tamariscina. 



8ciUa Eraseri. 

 Equisetum robustum. 



