Claytonia PORTULACAC— NYMPHAEACEAE Nymphaea 



cypress swamp, 2 mi. s. w. of Libertytown (Wo), (A. V. Smith), 

 R.R. Tatnall, 4428, 27 April 1940 (T, P, A). Reported from woods, 

 }4 mi. w. of Lecato Station (Ac), A. V. Smith, May, 1943. Mid- 

 April, May. 



Talinum Adans. 

 [T. teretifolium Pursh. 



"Dry serpentine barrens, near Centreville" (NC), Commons, 24 

 June 1876 (A). Believed to have been introduced from Chester 

 County, Pa., by the collector.] 



Portulaca L. 



P. oleracea L. Common Purslane. 



Common in waste and cultivated ground, New Castle County. 

 Nat. from Europe. 



CERATOPHYLLACEAE (Hornwoet Family) 



Ceratophyllum L. 

 C. demersum L. Hornwort. 



Frequent in ponds and streams on the Coastal Plain, from the 

 Fall Line southward to Sussex and Talbot Counties. Frt. Aug. 



NYMPHAEACEAE (Water Lily Family) 

 Nuphar Sibth. & Sm. Spatterdock. 



N. advena Ait. {Nymphaea advena Ait.) Upright Spatterdock. 



Common in ponds and slow streams, chiefly in the Piedmont. 

 May to Sept. 



N. variegata Engelm. Floating Spatterdock. 



Rare, in ponds: Conowingo (Ce), Pennell, 1 July 1914 (A); 

 Laurel (S), Fogg, 1828, 14 April 1927 (P); near Seaford (S), Earle, 

 1818, 3 Sept. 1938 (P). 



Nymphaea L. Water Lily. 



N. odorata Ait. {Castalia odorata of authors.) 



Frequent in ponds and streams, north of the Virginia line. 

 May to Sept. 



N. tuberosa Paine. 



One known collection: bed of St. Georges Creek near Delaware 

 City (NC), Commons cfc Tatnall, 8 Sept. 1896 (D). 



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