Hydrocotyle UMBELLIFERAE Osmorhiza 



Hydrocotyle L. Water Pennywort. 



H. umbellata L. 



Common throughout the Coastal Plain, in marshes and about 

 pond margins. Early June to mid-Sept. 



H. verticillata Thunberg. 



Infrequent on borders of marshes, Coastal Plain. July to Sept, 



Var. triradiata (Rich.) Fern. {H. Canhyi Coulter & Rose. 

 See Rhodora 41, 437-438. 1939.) 



Rare, in salt marshes: Deakyne's Ldg (s. e. NC), Commons, 

 6 July 1874 (A); Chincoteague Island (Ac), M. T. Travis, 658, 

 21 July 1938 (P). 



H. americana L. 



Frequent in low, usually alluvial, soil of the Piedmont area; 

 one collection south of the Fall Line: Camp Rodney, Elk Neck 

 (Ce), Benner, 25 June 1932 (A). June to Sept. 



H. ranunculoides L. f. 



Frequent in streamlets, pools and ditches, Piedmont, and south- 

 ward on the Coastal Plain, at least to Talbot County, (Earle). 

 June, July. 



H. rotundifolia Roxb. 



In lawn grass, Wilmington ; thought to have escaped from culti- 

 vation in greenhouses. 



Centella L. 



C. erecta (L. f.) Fern. (C. asiatica (L.) Urban; C. repanda Small. 

 See Rhodora 42, 295-298. 1940.) 

 Infrequent in low, sandy meadows, pine woods and dune sands 

 near the coast, Cape Charles to Sussex County, where it reaches its 

 northern limit. Frt. Sept., Oct. 



Chaerophyllum L. 

 C. procumbens (L.) Crantz. 



Common in rich rocky woods of the Piedmont. Mid- April, 

 early May. 



Osmorhiza Raf. Sweet Cicely. 

 O. Claytoni (Mx.) Clarke. (0. hrevistylis DC.) 



Rare, in rocky woods of the Piedmont: near Rowlandsville (Ce), 

 Long & Bartram, 1182, 31 May 1913 (A). 



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