[Vol. 9 

 180 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



tober, 1868, Commons (U. S. Nat. Herb, and Gray Herb.); 

 Salisbury, 1869, Canby (Mo. Bot. Gard. Herb.); "Mary- 

 land," September, 1870, Canby (Gray Herb.) ; Notley Hall, 

 1894, Coville 32 (Gray Herb., U. S. Nat. Herb., and N. Y. 

 Bot. Gard. Herb.); Wicomico River, 14 September,. 1895, 

 Palmer (Mo. Bot. Gard. Herb.); Kent Co., Lloyd's Creek, 

 Sassafras River, 12 August, 1895, Palmer (Mo. Bot. Gard. 

 Herb., Gray Herb., and U. S. Nat. Herb.) ; same, 29 July, 

 1896 (Mo. Bot. Gard. Herb.); tidal track, reddish sand, 

 capped lightly with mud, Elk River (about 80 mi. north of 

 Nanticoke and Wicomico River), 1894, Palmer (Mo. Bot. 

 Gard. Herb.) ; Town Point, Elk River, 30 July, 1896, Palmer 

 (Mo. Bot. Gard. Herb.); Cabin Johns Creek, 21 July, 1898, 

 Palmer (Mo. Bot. Gard. Herb, and U. S. Nat. Herb.); 

 Cabin Johns Creek, Elk River, 31 July, 1896, Palmer (U. S. 

 Nat. Herb.) ; between tides, rather common among rocks in 

 sand, l /2 mi. southwest of Havre de Grace, 19 July, 1902, 

 Shull 66 (Mo. Bot. Gard. Herb., Gray Herb., and U. S. Nat. 

 Herb.) ; 14 mi. south of Havre de Grace, 19 July, 1902, Shull 

 67- (U. S. Nat. Herb.) ; mouth of Gunpowder River, 2 Sep- 

 tember, 1902, Shull 296 (Mo. Bot. Gard. Herb., Gray Herb., 

 and U. S. Nat. Herb.) ; 1/3 mi. above mouth of Little Gun- 

 powder River, in sand, 3 September, 1902, Shull 305 (Mo. 

 Bot. Gard. Herb., Gray Herb., and U. S. Nat. Herb.). 



Washington, D. C. : shores of Anacostia River, opposite) Navy 

 Yard, 1 September, 1900, Steele (Mo. Bot. Gard. Herb., 

 Gray Herb., and U. S. Nat. Herb.); tide mud, 5 August, 

 1898, Steele (Gray Herb.). 



Virginia: Hunting Creek, by bridge near its mouth, 22 July, 1888, 

 Vasey & Coville (U. S. Nat. Herb.) ; shore of Potomac at 

 the foot of the Mt. Vernon estate, 4 July, 1889, Coville 

 (Mo. Bot. Gard. Herb, and U. S. Nat. Herb.); Hunting 

 Creek, 1 mi. south of Alexandria, 7 September, 1901, Maxon 

 432 (U. S. Nat. Herb.) ; 1 mi. south of Alexandria, at right 

 hand of wagon bridge over Hunting Creek, an arm of the 

 Potomac, in sand or gravel, in 6 in. water, exposed at ebb 

 tide, 16 September, 1906, Maxon 3886 (U. S. Nat. Herb.) ; 

 Hunting Creek, southwest of Alexandria, 11 August, 1902, 

 Shull 200, 201 (Mo. Bot. Gard. Herb, and U. S. Nat. Herb.) ; 

 near Hunting Creek, southwest of Alexandria, in shallow 



