Lindernia anagallidea (Michx.) Pennell (llysanthes attenuata of the 1919 

 "Flora of the District of Columbia.") False-pimpernel. 



Occasional in muddy soil. 

 Mimulus ringens L Monkey-flower. 



Occasional in wet soil. 

 Paulownia tomentosa (Thunb.) Steud Empress tree. 



Frequent in woods and fields. 

 Penstemon laevigatus Ait Smooth penstemon. 



Occasional in meadows. 

 Verbascum blattaria L Moth mullein. 



Clearings and in cultivated soil. 

 Verbascum thapsus L Flannel mullein. 



Disturbed soil in woods and fields. 

 Veronica arvensis L Common speedwell. 



Cultivated soil and waste places. 

 Veronica officinalis L Drug speedwell. 



Woods and banks. 

 Veronica peregrina L Purslane speedwell. 



Cultivated soil. 

 Veronica serpyllifolia L Thymeleaf speedwell. 



Occasional in woods and fields. 



BIGNONIACEAE 



Campsis radicans (L.) Seem. (Bignonia radicans L.) . . . .Trumpetcreeper. 



Woods and thickets. 

 Catalpa bignonioides Walt Southern catalpa. 



Established on the west slope of Mount Hamilton. 

 Catalpa speciosa Warder Northern catalpa. 



Location 17 and adjoining areas. 



OROBANCHACEAE 



Epifagus virginiana (L.) Bart. {Leptamnium virginianum (L.) Raf.) 



Beechdrops. 



Frequent under beeches. 



ACANTHACEAE 



Ruellia caroliniensis (Walt.) Steud Ruellia. 



Occasional in thin woods. 



39 



