\\ 



Eriocaulon XYRIDACEAE— COMMELINAC. Commelina 



E. Parkeri Robinson. 



Frequent in tidal mud of the Coastal Plain. Early Aug. to 

 mid-Oct. 



XYRIDACEAE (Yellow-eyed Grass Family) 



Xjrris L. Yellow-eyed Grass. 



X. caroliniana Walt. (Including forma flaccida Fernald. Rhodora 

 42, 433. 1940.) 

 Common on sandy margins of ponds, from lower Kent (Del.) 

 and Talbot Counties, southward. July to Sept. 



X. difformis Chapman. (Often confused with X. communis Kunth.) 

 Frequent in sandy ditches and on swamp margins, Sussex 

 County and southward. June to Sept. 



X. Congdoni Small. (X. SmalUana Nash.) 



Rare; boggy shores, semi-aquatic: along the railroad, south of 

 Ellendale (S), Long, 22 July 1908 (A); Ocean City (Wo), J. J. 

 Carter, 12 Aug. 1909 (A); in water of Waples Pond, 3 mi. n. of 

 Milton (S), R. R. Tatnall, 928, 4 July 1930 (T). 



X. torta J. E. Smith. {X. flexuosa of authors, not Muhl.) 



Frequent; bogs, meadows and swampy pine woods. Piedmont 

 and Coastal Plain. July, Aug. 



COMMELINACEAE (Spiderwort Family) 



Tradescantia L. Spiderwort. 

 T. virginiana L. 



Frequent in the valleys of Brandywine and Red Clay Creeks 

 (NC); rare along the Susquehanna River: Bald Friar (Ce), Long & 

 SL John, 18 April 1913 (A), Fogg, 14 May 1927 (P). Mid-May to 

 mid-June. 



Commelina L. Day-flower. 



C. communis L. See Pennell: Bartonia 19, 19-22. 1938. Pale- 

 flowered Day-flower. 

 Common weed in gardens and waste places. Early June to 

 Sept. Introd. from China. 



C. debilis Ledeb. (C. communis ludens (Miquel) Clarke. See Pen- 

 nell, 1. c, also Proc. Acad. Nat. Sci. Phila. 90, 31-38. 

 1938.) Dark-flowered Day-flower. 



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