66 



Interstitials : 

 Aristida tuberculosa 

 Fcstuca octoflora 

 Ely inns zirginicus 

 Cyperus filicuUnis 

 Stenophyllus capillaris 

 Carex pennsylvanica 

 Carcx fcstucacca, var. 



hrevior 

 Commclina virginica 

 Polygonuui tcnne 

 Cheno podium album 

 Froelichia floridana 

 Mollugo rcrticillafa 

 Silcnc anfirrhina 

 Tal ilium rugospenuum 

 Lcsquci'clla argcntea 

 Lcpidium virghiicum 

 Erysimum parvifloruui 

 Arabis Ixrata 



Cassia Chamacchrista 

 Strophostyies sp. 

 Linum sulcatum 

 Polygala verticiUata 

 Croton glandulosus, var. 



scptcntrionalis 

 Crotonopsis linearis 

 Euphorbia Gcycri 

 Oenothera rhombipetala 

 Verbena bracteosa 

 Monarda punctata 

 Hedeoma hispida 

 Linaria canadensis 

 Specularia perfoliata 

 Erigeron ramosus 

 Erigero)! canadensis 

 Gnaphalium polycephalum 

 Ambrosia psilostachya 

 Lactuca canadensis 



Mats: 



Selaginella rupestris Antennaria sp. 



Opuntia Rafincsquii 



Parasite : 

 Orobanche fasciculata 



Not every station of the consocies contains all of these secondary 

 species, or even a majority of them. The actual specific compo- 

 sition of the consocies and the frequence and abundance of the species 

 vaiy so g-reatly from place to place that indixidual descriptions 

 must be given. Seven distinct areas occupied by the mixed consocies 

 were examined with more or less detail. 



I. Hanover area, one mile southwest of the railway station. The 

 consocies occupies a flat interdunal depression (PI. HI, Fig-, i). Nine 

 species of bunch-grasses are present, which are named in the approxi- 

 mate order of their abundance: Lcptoloma cognatum, Koeleria cris- 

 tata, Stipa spartea, Sorghastruni nutans, Panicum perlongum, Pan- 

 icuni Scribnerianum, Carex Muhlenbergii, Panicum pseudopubescens, 

 and Bontcloua hirsuta. Of these the first two occupy more space 

 than the other seven together. The bunches are very compact and 

 close and at a little distance resemble a close sod. Manv dead leaves 



