INTRODUCTION 



17 



Vincetoxicum obliquum, 



Stylisma Pickeringeri, 



Phlox paniculata, 



Phacelia dubia, 



Scutellaria serrata, 



Salvia lyrata, 



Monarda punctata, 



Koellia aristata, 



Cunila origanoides, 



Pentstemon pallidas, 



Gratiola sphaerocarpa, 



Gratiola pilosa, 



Micranthemum micranthemoides , 



Agalinis Holmiana, 



Stomoisia juncea, 



Stomoisia virgatula, 



Utricularia fibrosa, 



Bignonia radicans, 



Ruellia parviflora, 



Oldenlandia uniflora, 



Diodia teres, 



Diodia virginiana, 



Galium bermudense, 



Viburnum nudum, 



Viburnum prunifolium, 



Viburnum Canbyi 



Triosteum perjoliatum, 



Triosteum angustifolium, 



Lobelia puberula, 



Lobelia Nuttallii, 

 Lobelia Canbyi, 

 Vernonia glauca, 

 Eupatorium album, 

 Eupatorium altissimum, 

 Eupatorium coelestinum, 

 Kuhnia eupatorioides, 

 Lacinaria graminifolia, 

 Chrysopsis mariana, 

 Solidago stricta, 

 Solidago fislulosa, 

 Euthamia floribunda, 

 Aster Lowrieanus, 

 Aster concinnus, 

 Aster gracilis, 

 Gnaphalium Helleri, 

 Pluchea foetida, 

 Rudbeckia triloba, 

 Rubdeckia fulgida, 

 Rudbeckia speciosa, 

 Bidens bidentoides, 

 Mesadenia reniformis, 

 Synosma suaveolens, 

 Senecio tomentosus, 

 Senecio Smallii, 

 Lactuca villosa, 

 Lactuca floridana, 

 Nabalus virgatus. 



This southern element constitutes about 13 per cent, of our wild 

 flora. 



29. It would seem that many of these, and some northern species 

 that are pine-barren plants, but are now found elsewhere on the 

 coastal plain, have spread there since the release of the Beacon Hill 

 formation from its last isolation. There are many species found 

 now on the coastal plain of New Jersey and on Long Island whose 

 distribution center, so far as our range is concerned, seems to have 

 been the pine-barrens. Among those that- give indication, by 

 3 



