FLORISTIC FEATURES OF A PRAIRIE PROVINCE 379 



This formation is difficult to separate into coiisocies though 

 certain grouping- has been noted ; yet it is not very distinct. The 

 following- data will indicate the tretid of associations. 



A. Consocies Phlox maculata. 



Location : Near running water or pond. 



Soil : Loam to clay loam. 



The most representative species are : 



Phlox maculata, Caltha palustris, Leersia or,yzO'ides, Agrostis 

 alha, Steirmiemu ciliatus, Steironema quadrifolia, Ranunculus 

 septentrionalis. 



Fig. 154. 

 maculata. 



-G-ro'Ve's Field. W^et prairie of upland saucer pond region. Phlox 



B. Consocies Agrostis-Steironema-Ly thrum. 

 Location : Low, wet, flat land. 



The more common species are : 



Agrostis alha, Juncus tenuis, Hehnium autumnale, Steiro- 

 nema lanceolata, Steironema quadrifolia, Lythrum alatum. 

 Slum ciciitaefoliuni. Anemone canadensis, Mentha arvensis var. 

 canadensis, Lycopus americana, Pedicularis lanceolata. 



C. Consocies Pamcum-Fragaria-Senecio. 



Location : Damp with better drainings than A or B. 

 Soil : Loam to clay loam. 

 Arrangement : Gregarious-copious. 



