98 Pennell : Plant's of the southern United States 



I. Commelina communis L. 

 CommeUna communis L. Sp. PI. 40. 1753. " Habitat in America." 

 Apparently an erroneous statement of nativity, as the Linnean 

 diagnosis, as well as the fuller description and figure of Dillenius 

 (Hortus Elthamensis93. pi. 78. 1732); appear to apply to this 

 originally East Asian species. All specimens in the Linnean 

 herbarium, from photographs sent me, are evidently the species 

 here desciibed. 



Flowers and fruits August to October. 



Moist loam or sandy soil, eastern Massachusetts to Virginia 

 and western North Carolina; also in Jackson County, Missouri, 

 and probably in the intervening area. Abundant as a weed 

 eastward. Evidently introduced from eastern Asia. 



Rhode Island. Newport:* roadsides near Old Harbor, Block 

 Island, >t September 14, 1913, M. L. Fernald, B. Long & G. S. 

 Torrey 913? (A.). 



New York. Bronx: garden. New York Botanical Garden, 

 < September 24, 1915, F. IF. Pennell 6649 (Y.), 6714 (Y.). 

 Richmond: yard. Port Richmond, > September 23, 1915, F. W. 

 Pennell 6648 (Y.). 



New Jersey. Atlantic: Pleasantville, < September i, 1910, 

 N. Taylor 2778 (Y.). BurHngton: Kinkora, > August 18, 1910, 

 N. Taylor 2S 50 (Y.). Camden: Fish House, > August 17, 1910, 

 B. Long 4512 (A.). Gloucester: Mickleton, > September 10, 

 1892, B. Heritage (A.). Mercer: Trenton, > July, 1889, F. E. 

 Lloyd (Y.). Monmouth: Bradley Beach, < September 22, 1915, 

 F. W. Pennell 6577 (Y.). Ocean: Point Pleasant, < September 

 22, 1915, F. W. Pennell 6603 (Y.). 



Pennsylvania. Bucks: Bristol, < September 18, 1898, C. D. 



Fretz (A.). Chester: West Chester, > August 24, , W. 



Darlington (Y.). Delaware: cultivated soil, Wawa, < August 

 20, 1906, F. W. Pennell 1925 (Y.). Lancaster: in sandy places, 

 Tucquan, < August 31, 1899, A. MacElwee 121 7 (A.). Lehigh: 

 roadside, Alburtus, < August 27, 191 1, H. W. Pretz 3893 (A.). 

 Montgomery: Pennsburg, > May 30, 1907, J. R. Mumhauer 

 400 (A.). Northampton: waste places, Easton, > August 27, 



* In the following lists one specimen from each county is cited, counties being 

 arranged alphabetically. - ^• 



t Before dates cited the following signs are used: >, in flower; <, in fruit. 



