1 14 Rhodora [May 



DIRCA. 

 D. palustris L. Open woods, Salisbury (J. 11. Scars &• Edward 

 Moidton, May, 1887); Newburyport (Edward MouUon, May 20, 

 1889). Specimens in herb. Peabody Acad. Sci. 



LYTHRACEAE. 

 CUPHEA. 



C. procumbens Cav. One plant in high wet pasture, Andover 

 (M. E. (tuttrrsoti, Sept. 22, 1901). Specimens in herb. Gray and 

 Peabody Acad. Sci. See Rhodora iv. 247-8, 1902. A species of 

 southern Mexico. 



DECODON. 



D. verticillatus (L.) Ell. Shallow water, frequent near the coast. 

 D. verticillatus (L.) Ell., var. laevigatas T. & G. See Rho- 

 dora xix. 154-5, 1917. Shallow water, rather common. 



LYTHRUM. 



L. ALATTM Pursh. A fugitive plant at Melrose, Chelmsford, 

 Lexington, Cambridge, Boston and Needham. 



L. Hyssopifolia L. Edges of salt-marshes and sand dune hollows 

 all along the coast. 



L. Salicaria L. Introduced in wool-waste at many places; 

 especially abundant along the Merrimac River and between Ashland 

 and Eramingham. 



L. Salicaria L., var. tomentosum (Mill.) DC. Georgetown, 

 Danvers, Chelmsford, Franklin. 



L. VIRGATUM L. Casual in vacant lots at S. Boston (C. 11. Knowl- 

 ton & W. P. Rich, July 29, 1908); abundant in marshes by mill- 

 stream below Canton Junction (C. 11. Knowlton, Sept. 27, 1908); 

 Sharon (S. F. Poole, September, 1905); Dorchester (./. R. Churchill, 

 Sept. 2, 191(5). 



ROTALA. 



R. ramosior (L.) Koehne. Sandy and gravelly shores of ponds; 

 Danvers, Woburn, Winchester, YYaltham, Sudbury, Wellesley, Need- 

 ham, Sharon, Wrentham. 



MELASTOMACEAE. 



RHEXIA. 



R. virginica L. Meadows, common throughout, except perhaps, 

 in some of the western towns. 



