FLOWERING PLANTS A \ 1 1 FERNS OF INDIANA. 849 



It flowers early in July and continues in bloom until Sep- 

 tember. 



Jefferson (J. M. Coulter); Vigo and Monroe (Blatchley); 

 Franklin (Mejmcke); Clark (Baird and Taylor); Jay, Delaware, 

 Wayne, and Kandolph (Pliinney); Noble (Van Gorder); Gibson 

 and Posey (Schneck); Fayette (Hessler): Marion and Hamilton 

 (Wilson); Steuben (Bradner). 



LUDWIGIA. False Loosestrife. 



L. polycarpa Short and Peter. 



Of sparing occurrence in wet, rich soil. 



Reported stations are: Jay, Delaware, Randolph, and Wayne 

 (Phinney); Gibson (Schneck); Steuben (Bradner). 



L. ALTERNIFOLIA L. 



A common and very variable form, especially abundant in the 

 low lands about inland lakes. 



When in flower in July and August it is frequently the most 

 notable form in such localities. 



Herbarium specimens from Jefferson (J. M. Coulter); Monroe 

 (Blatchley); Franklin (Meyncke); Clark (Baird and Taylor): 

 Kosciusko (Coulter); Jay, Delaware. Randolph, and Wayne (Phin- 

 ney); Steuben (Bradner). 



JUSSFEA L. 



J. decurrens (Walt.) DC. 



This southern marsh form has a single reported station. The 

 plant was collected by Dr. A. Clapp, of New Albany, in 1839, and 

 is verified by specimens in the Clapp herbarium. From its mass 

 distribution its most natural appearance in our bounds would be 

 in Gibson and Posey counties instead of Floyd.. The record of 

 the occurrence of the species in Indiana in the past is unmistak- 

 able. It is doubtful, however, whether it occurs as a pi s 

 member of our flora. Quite a number of forms found in the 

 Clapp collections seem to have disappeared from our flora, a fact 

 which emphasizes the importance of continued studies of definite 

 areas, in order to determine in some measure plant movements 

 now in progress. 



