NOTES ON OUR LOCAL PLANTS ^39 



phase, will, however, persist for a long time as in this form it 

 is a weed hard to eradicate. 



Persicaria mesochora Greene. 1. c. p. 28. Am. Mid Nat. p. 

 234 1. c. p. 17, (191 1). also Millers, Ind. (Umbach), Dune Park 

 (A. Chase), both [Lake Co.]. 



Persicaria mesochora var. arenicola Nwd. 1. c. p. 235. 



Persicaria ammophila Greene. 1. c. p. 471, Am. Mid. Nat. 

 1. c. p. 236. 



Persicaria fluitans (Eaton) Greene. 1. c. p. 26, Am. Mid. Nat. 

 1. c. p. 244, (1912), also p. 15, (1911). 



Persicaria Hartwrightii (A. Gray) Greene 1. c. p. 24, Am Mid. 

 Nat. II., p. 15, (1911). 



Section Eupersicaria. 



Persicaria lapathifolia (Linn.) S. F. Gray, Nat. Au. II., p. 

 270, (1821). 



Polygonum lapathifolium Linn., Sp. PI. p. 360, (1753). 



Polygonum incarnatum Ell., Bot. S. C. and Ga. i, p. 456, 



(1817). 



[Lake Co.] (Higdon and Raddin) ; Clarke, Ind. (Umbach); 

 Lake Maxinkuckee (H. W. Clarke), [Lake Co.] (Deam); Nos. 

 2 733 A, Notre Dame, 369A, 9094, 9089, Webster's Station N. of 

 Notre Dame. Found also in Van Buren, Berrien, Laporte, Porter, 

 and Marshall Cos. 



Persicaria pennsylvanica (Linn.) Small, Fl. S. E. U. S. p. 



377. (1903)- 



Polygontim pennsylvanicum Linn., Sp. PI. p. 362, (1753). 



Lake Maxinkuckee (H. W. Clarke); [Lake Co.] (Deam); 

 Nos. 1 84 1, 10334, 9494, 9485. Notre Dame, Nos. 9419, 9488, 

 Collected at Webster's Station, were affected by some smut-like 

 parasitic fungus which caused the destruction of nearly all the 

 inflorencesces on the plants in the locality. 



Persicaria persicarioides (H. B. K.) Small. 1. c. p. 378. 



Polygonum persicarioides H. B. K., Nov. Gen. 2, p. 179,(1817). 



Nos. 1825, 9409, Notre Dame, Ind. 



Persicaria maculata Euricius Cordus, Botanologicon, (155 1). 



Also Thalius, Hercyna p. 85, (1588), also S. F. Gray Nat. 

 Air, p. 270, (182 1 ), Persicaria maculosa Trew, Herb. Blackw, 

 t. 118, (1754), also Gesner, Ray, Persicaria mitis J. Bauhin, Lobelius 

 (1576) Linn. Fl. Lapp. No. 71, Morandi, Persicaria mitis Linn., 



