60 



over and Dixon, Sorghastriun nutans at Hanover, Panicum pseiido- 

 pubesccns at Hanover, Andvopogon scopariiis at Dixon and Oquawka, 

 and Paspaluni setaccuni at Oquawka. At Dixon, Chrysopsis villosa 

 becomes conspicuous and occupies a large amount of space, but it 

 seems prol)able that the conditions there are not quite normal. 



It has already been noted that the confluent habit of the bunches 

 of Leptolonia cognatum restricts the space for secondaiy species. 

 The great extent of the consocies, on the other hand, tends to in- 

 crease the number of species, even though the number of individuals 

 is relativelv small. A list of the secondary species follows. 



Bunch-grasses : 

 Andropogon scoparius 

 SorgJiasfruni nutans 

 Paspaluni sctaceuni 

 Panicum perlongnm 

 Panicum Scrihnerianmn 

 Panicum pseud opuhcscens 

 Koclcria crista t a 



Perennials : 



Tradcscantia reflexa 

 Sisyrinchium sp. 

 Oxyhaphus nyctagineus 

 Dclphiuiuni Pcimrdi 

 Baptisia bractcata 

 Auwrpha cancscens 

 Petalostcmnni purpureum 

 Tcph rosia znrginiana 

 Lcspedcza capitata 

 Polygala polygama 

 Bnphorhia corollata 

 Rhus canadensis, var. Ulinoensis 

 Ccanothus americanns 

 Callirhoe triangulata 

 HcUanthemnm ma jus 

 T^iola pedata 



Mats : 

 Selaginclla riipestris 

 Opuntia Raiincsqnii 



Boutcloua hirsuta 

 Bouteloua curtipendula 

 Poa pratcnsis 

 Cypcrus Sclnvcin itcii 

 Cares umhellata 

 Care.v MuJdenhcrgii 



Asclepias auiplexicaulis 

 A cerates virid if I o ra 

 Acerates viridiflora, var. 



lanceolata 

 Litlwsperuium Gmclini 

 l^crhena stricta 

 Verhascum Tliapsus 

 Pentstemon hirsutus 

 Ruellia ciliosa 

 Liatris scariosa 

 Chrysopsis -AUosa 

 Solidago speciosa, var. ajigustaia 

 Solidago nenwralis 

 Aster linariifolius 

 Helian th us scaberrimns 

 Achillea M die folium 



Antennaria sp. 

 Senecio Balsamitae 



