Commelina BROMELIAC— PONTEDERIAC. Heteranthera 



Locally frequent from Sussex and Caroline Counties, southward ; 

 occasional in New Castle County. Early June to late Oct. Introd. 

 from China. 



C. erecta L. 



Rare in open sandy soil and pine woods of the Coastal Plain: 

 Salisbury (Wi), Commons, 27 July 1865 (A), and J. J. Carter, 14 

 July 1904 (A); Millsboro (S), Commons, 15 Aug. 1877 (A); Laurel 

 (S), Commons, 21 Sept. 1880 (G). 



Var. angustifolia (Mx.) Fernald. Rhodora 42, 435-441. 1940. 



Rare: dry sand 1 mi. e. of Laurel (S), Commons, 19 Aug. 1880, 

 (A, G, U) ; sandy pine woods near Cape Henlopen (S), Commons, 

 27 Aug. 1895 (A, G, U). 



C. virginica L. (C hirtella Vahl.) 



Infrequent, in wet woods and on banks of streams and ponds, 

 Piedmont and Coastal Plain. July to Sept. 



BROMELIACEAE (Pineapple Family) 



Tillandsia L. 



T. usneoides L. Long Moss. Spanish Moss. 



Occurs sparingly on holly and pine trees, in mixed woods, about 

 % mi. s. w. of Eastville (No): Fernald & Long, 5256, in 1935, 

 (U, T), R. R. Tatnall, 3025, in 1936, and 3378, in 1937 (T, A). 



Apparently this plant does not bloom at this locality, far north 

 of its anticipated occurrence. 



PONTEDERIACEAE (Pickerel- weed Family) 



Pontederia L. 

 i- P. cordata L. Pickerel- weed. 



Common, in shallow water, and on muddy shores of ponds and 

 streams. June to mid-Sept. t-^ wt i > 



Heteranthera R. & P. 

 H. reniformis R. & P. Mud Plantain. 



Infrequent; muddy pools and borders of streams, Piedmont and 

 Coastal Plain, southward to Talbot County: Potts Mill Creek, ^ 

 mi. s. of Longwoods (Ta), Earle, 3465, 30 Aug. 1941 (P). July to 

 Sept. 



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