68 Bulletin 1, Biological Society of Washington, 1918. 



Iris verna 



Sisyrinchium atlanticum 

 Perularia flava 



Blephariglottis blephariglottis 

 Pogonia ophioglossoides 

 Ibidium odoratum 

 Limodorum tuberosum 

 Ophrys austral is 

 Acnida cannabina 

 Chenopodium boscianum 

 Cabomba caroliniana 

 Magnolia virgin iana 

 Ranunculus obtusiusculus 



sceleratus 

 Roripa sylvestris 

 Radicula hispida 

 Sarracenia purpurea 

 Itea virginica 

 Aeschynomene virginica 

 Stylosanthes riparia 

 Meibomia rigida 

 Lathyrus palustris 

 Strophostyles missouriensis 

 Polygala lutea 



curtissii 

 Tithymalopsis arundelana 



ipecacuanhae 

 Ilex glabra 

 Ascyrum stans 

 Viola brittoniana 



nepetaefolia 

 Ammannia koehnei 

 Rhexia virginica 



mariana 

 Ludwigia hirtella 

 Jussiaea decurrens 

 Oenothera laciniata 



Oenothera sinuata 

 Myriophyllum spicatum 

 Clethra alnifolia 

 Kalmia angustifolia 

 Steironema lanceolata 

 Polypremum procumbens 

 Sabbatia dodecandra 

 Bartonia paniculata 

 Gentiana saponaria 

 Koellia virginiana 

 Lycopus uniflorus 

 Gratiola sphaerocarpa 

 Agalinis setacea 

 Otophylla auriculata 

 Micranthemum micranthemoides 

 Utricularia subulata 



juncea 

 Plantago aristata nuttallii 



cordata 

 Oldenlandia uniflora 

 Viburnum nudum 

 Eupatorium hyssopifolium 



cannabinum 



maculatum 



serotinum 

 Erigeron ramosus 

 Pluchea camphorata 

 Solidago elliottii 



odora 



puberula 

 Aster concolor 



dumosus 



radula 

 Helianthus angustifolius 



mollis 



giganteus 

 Bidens connata 



Some well-known species which are chiefly confined to the 

 Coastal Plain but which range more or less upon the Pied- 

 mont 40 are : 



Lorinseria areolata 

 Typha angustifolia 

 Zizania aquatica 



Rhynchospora corniculata 

 Orontium aquaticum 

 Peltandra virginica 



«° Scarcely any of them reach the Piedmont in Pennsylvania or northern 

 New Jersey. — Witmer Stone. 



