STEUCTUHE OF THE FORMATION 



143 



PHENOLOGICAL EECORD OF SPECIES GROWING 

 PRAIRIE VOWKAJUVm— Concluded 



N 



cJolantim carolinense 



Solanum carolinense 



Solidago canadensis 



Solidago canadensis 



Solidago nemoralis 



Solidago rigida 



Solidago rigida 



Solidago rigidiuscula 



Solidago rupestris 



Solidago rupestris 



Spartina cynosuroides. . . . 



Spartina cynosuroides 



Sporobolns asper 



Sporobolus asper 



Sporobolus heterolepis . . . 



Steironema ciliatum 



Steironema ciliatum 



Stipa spartea 



Stipa spartea 



Teucrium canadense 



Teucrium canadense 



Teucrium occidentale .... 

 Thalictrum purpurascens 

 Thalictrum purpurascens 

 Tradescantia virginiana. . 

 Tradescantia virginiana. . 



Trifolium pratense 



Trifolium pratense 



Trifolium repens 



Trifolium repens 



Vernonia fasciculata 



Vernonia fasciculata 



Vernonia gigantea 



Vernonia gigantea 



Verbena hastata 



Verbena hastata 



Verbena stricta 



Verbena stricta 



Vicia americana 



Vioia americana 



Viola obliqua 



Viola obliqua 



Viola pedatifida 



Viola pedatifida 



Zizla aurea 



