1918] SARGENT—QUERCUS 431 
Borders of swamps and low wet woods of the coast region from the Dismal 
Swamp, Virginia, to eastern Texas; common, especially in southern central 
Alabama and in Louisiana, where in the western part of the state it extends 
north of the Red River. 
VircintA.—Dismal Swamp, L. F. Ward, 1887 (distributed as Q. aguatica 
var. laurifolia); C. L. Pollard, May 30, 18096. 
Nortx Caroitina.—New Berne, Craven County, T. G. Harbison, June 10, 
1917 (nos. 3, 4); Wilmington, New Hanover County, 7. G. Harbison, June 11, 
1917 (no. 110); Abbottsburg, Bladen County, T. G. Harbison, May 3, 1916. 
ouTH CaroLinaA.—Darlington, Darlington County, T. G. Harbison, 
December 10, 1917 (no. 4); Yemassee, Hampton County, 7. G. Harbison, 
December 7, 1917 (no. 1). 
Georci1a.—Lumber City, Telfair County, T. G. Harbison, May 30, 1917 
(no. 9), December 3, 1917 (no. 11). 
FLoria.—Jacksonville, Duval County, T. G. Harbison, December 3, 
1917 (nos. 17, 20); San Mateo, Putnam County, 7. G. Harbison, December 6, 
1917 (no. 36); River Junction, Gadsden County, T. G. Harbison, April 19, 1917 
(no. 110), November 2, 1917 (nos. 141, 156). 
ALABAMA.—Cottondale, Tuscaloosa County, 7. G. Harbison, May 10, 
1917 (no. 38); Mount Vernon, Mobile County, 7. G. Harbison, May 19, 1917 
(no. 16); Cedar Creek, near Selma, Dallas County, R. S. Cocks, September 20, 
1917; Sardis (now Berlin), Dallas oneess R. S. Cocks, October 2, 1917 (no. 
4706, type). 
Lovurstana.—Slidell, St. Tammany Parish, R. S. Cocks, September 30, 1917; 
Mandeville, St. Tammany Parish, R. S. Cocks, September 1914 (no. 4698) ; 
Springfield, Livingston Parish, Cocks and Sargent, March 29, 1917, R. S. Cocks, 
October 3, 1917 (no. 4710); Welsh, Jeff Davis Parish, E. J. Palmer, September 
>» 1915 (no. 8485); Lake Charles, Calcasieu Parish, C. S. Sargent, March 24, tee : 
Natchitoches, Natchitoches Parish, E. J. Palmer, May 4, 1915 (no. 7500); 
Monroe, Ouachita Parish, E. J. Palmer, October 4, 1915 (no. 8934); Pineville 
Rapids Parish, R. S. Cocks, October 3, 1917 (no. 4702). 
TExas.—Beaumont, Jefferson County, E. J. Palmer, April 22, 1916 (no. 
9524), C. S. Sargent, March 23, 1917. 
Q. rhombica has usually been confounded with Q. nigra L. except in Virginia 
and Louisiana, where it has passed for Q. laurifolia Michx. From Q. migra 
it differs in the shape of the leaves, in its larger fruit with deeper cups, rounded 
not flat on the bottom and covered with less closely appressed and less pubes- 
cent scales, in its paler bark and more persistent leaves. From Q. /aurifolia it 
differs in the shape of its thinner leaves which turn yellow and fall gradually in 
the early winter, and in its larger fruit with much deeper cups. 
“ QUERCUS RHOMBICA var. obovatifolia, n. var—Differing from 
the type in the obovate leaves at the ends of the branches, rounded 
or slightly 3-lobed or undulate at the broad apex. 
