FLORA OF WASHINGTON AND VICINITY. 103 



OROBANCHACEiB. 



Broom-rape Family. 



Orobanche minor, L. Lesser Broom-rape. 

 Last of May or first of June. 



t Aphyllon uniflorum, Gray. One-flowered Broom-rape. 

 Eare. End of May. 



tConopholis Americana, Wallroth. Squaw-root. Cancer-root. 

 Last half of May. 



tEpiphegus Virginiana, Bart. Beecii-drops. 



Thickened base of the stem forming a large scaly corm, whicli when freshly cut 

 open has the odor of potatoes. September. 



LENTIBULACEiB. 



Bladderwort Family. 



f Utricularia vulgaris, L. Greater Bladderwort. 

 Virginia, below Custis Spring (Dr. Foreman.) 



t Utricularia gibba, L, 



Flats above Eads' Mill. September. 



BIGNONIACEiE. 



BiGNONiA Family. 



tTecoma radicans, Juss. Trumpet-flower. 

 Last of June or in July. 



t Catalpa Mgnonioidea, Walt. Indian Bean. 

 Probably not indigenous. Middle of June. 



ACANTHACE^. 



Acanthus Family. 



Ruellia ciliosa, Pursh. IDipteracanthus ciliostis, 'Nees.'\ Ruel. Long-tubed Ruellia. 

 Dry ground. First half of July. 



Ruellia ciliosa, Pursh, var. ambigua, Gray. 

 In damp ground. Middle of July. 



t Ruellia strepens, L. \_Dipteracanthits strejjenSj'Nees.'] Short-tubed Ruellia. 



Flats above the Outlet Lock. First half of June. A month earlier than the last. 



tDianthera Americana, L. Water- Willow. 



June. 



VERBENACEiE. 



Vervain Family. 



tPhryma Leptostachya, L. Lopseed. 

 July. 



