482 THE PLANT LIFE OF MARYLAND 



Utricularia fibrosa Walt. Fibrous Bladderwort. 



Anne Arundel County, Glenburnie (Robert K. Miller). 



Utricularia gibba L. Humped Bladderwort. 



Coastal and Midland Zones; in ponds and streams; frequent. 

 Worcester County, Boxiron (1067). 



OROBANCHACEAE. 



Thalesia uniflora (L.) Britton. Cancer-Root. 



Throughout the state; in rich forests; being most frequent in the 



Midland Zone. 

 Harford County, Glenville (1567). 



Conopholis americana (L. f.) Wallr. Squaw-Root. 



Midland and Mountain Zones; in rich forests; infrequent. 



Leptamnium virginianum (L.) Raf. Beech-Drops. 



Throughout the state; in rich forests; parasitic on Fagus americana. 



BIGNONIACEAE. 



Bignonia crucigera L. Cross-vine. 



Coastal Zone; in river swamps of the Pocomoke; rare. 

 Somerset County, near Pocomoke City (1144). 



Tecoma radicans (L.) DC. Trumpet Creeper. 



Coastal Zone, and along the Potomac River for about 20 miles above 

 Washington; in forests and open situations; common 



ACANTHACEAE. 



Ruellia strepens L. Smooth Ruellia. 



Montgomery County, Cabin John (Robert K. Miller). 



Ruellia ciliosa Pursh. Hairy Ruellia. 



Throughout the state; in dry open situations; infrequent. 

 Kent County, near Chestertown (1696). 



Dianthera americana L. Water-willow. 



Rare in the Coastal Zone (where it is known only from the sandy shores 

 of the Sassafras River near Betterton), common in the Midland and 

 Mountain Zones, where it is confined to saturated gravel or stony soil 

 in stream beds. 



Washington County, Hancock (69S). 



PHRYMACEAE. 



Phryma leptostachya L. Lopseed. 



Rare in the Coastal Zone, and in the Lower Midland District, common in 

 the Upper Midland District and the Mountain Zone; in moist and dry 

 forests. 

 Washington County, near Hancock (804). 



