lOO AMERICAN MIDLAND NATURALIST 



Commelina virginica Linn. vSp. PI. ed. 2, p. 61, (1762). 



St. Joseph and Benton Harbor, Mich. [Berrien Co.];Lake 

 Co.], (Hill). Miller's [Lake Co.] Babcock. vSt. Mary's [vSt. Joseph 

 Co.] N. D. Herb. 9415. I have found it in several other places 

 in the county notably at South Bend where it escaped from gardens. 

 The plant, appears every year around dumps and in barnyards 

 along fences, when once established. 



TRADESCANTIA Linn. Syst. (1755); Gen. PI. p. 98, (1737); 

 P- 37, (1742); p. 38, (1754); Hort. CHff. p. 126, (1737); vSp. 

 PI. p. 288, (1753); Van Royen Lugd. p. 37, (1740). 



Ephemerum Morison, Oxon. p. 506, (1635): Tour. Els. Bot. 

 p. 295, (1694); L R. H. p. 357, (1700); Moench. Meth. p. 23, 

 (1794) not Ephemerum Dioscorides = Polygonatum m,uUiflortim, nor 

 Ephemerum Theophrastus. Ephemera- phalangium^ Magnol Charact. 

 p. 241, (1720). 



Tradescantia virginica Linn. Sp. PI. p. 288, (1753), Ephemerum 

 congestum Moench. Ic. p. 238. 



Found by me only in the dune region of Lake Michigan at 

 Dune Park, Ind. [Lake Co.]; also at Millers, Ind. The plant is 

 much smaller than the following for which it is often taken. The 

 plant may even be distinct from the eastern type. 



Tradescantia refiexa Raf. New Fl. N. Am. IL, p. 87, (1836). 



Lake Maxinkuckee, (H. B. Clarke) (?) probably. Clarke, 

 [Lake Co.] (Umbach); [Marshall Co.] (Deam) ; [St. Joseph Co. 

 (Powers); N. D. Herb. No. 1953; Chain Lake [St. Joseph Co.] 

 N. D. Herb. No. 2087. A perfectly white flowered specimen 

 was collected near Warwick [vSt. Joseph Co.]. The bracts of the 

 involucre are not reflexed.^ I have found this common plant in 

 all the counties with the range of the notes, and in numerous 

 places in every county. 



Family 27. PONTEDEREAE H. B. K. Nov. Gen. 

 and Sp., I, p. 265, (1815). 



Pontederiaceae Dum. An. Fam. PI. p. 59, (1829); also Meisner, 

 Gen. p. 298 [300], (1842), etc. 



^ Name ineligible because too long and composite. 

 ^ Am. Mid. Nat., Vol. 2, p. 265. 



