252 



CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Gray a as shown by the specimen from "Pine barrens of New-Jersey," in the Boott 

 set of the Gramineae and Cyperaceae now in the Gray Herbarium. This varietal 

 name was never published by Gray and P. nitidum was included under P. dichotomum 

 in Gray's Manual from the first to the fifth editions. In the sixth edition the name 

 P. nitidum was applied to P. sphaerocarpon Ell., (which was cited as synonym) as 

 shown by the description and by specimens in the Gray Herbarium. The interme- 

 diate specimens, of which the following are representative, are included in those 

 cited below: Ball 69, Bebb 1259, Chase 3089, 3256, 3489, 3611, Hitchcock 1216, 1607, 

 Mackenzie 2166, Plank 49, Tracy 13, 4607. 



DISTRIBUTION. 



Sandy soil, Vermont to northern Florida, west to Illinois and Texas, and south 

 through Mexico to Venezuela. 



Vermont: Putney, Blanchard9 (Gray Herb.). 



Massachusetts: Boston, Swan in 1886; Framingham, Smith 748. 



Connecticut: Southington, Andrews 8, 73; Waterford, Graves 85; Berlin, Bissell 



5585; Portland, Wilson 1435. 

 Rhode Island: Providence, Olney in 1868 (Brown Univ. Herb.). 

 New York: Niagara County, Townsendl; Long Island, Bicknell in 1905. 

 New Jersey: Berkeley Heights, Mackenzie 2250; Tuckerton, Chase 3611; Wild- 

 wood, Chase 3489, 3509; Cape 



May, Pollard in 1897; South 



Amboy, Mackenzie 2166. 

 Pennsylvania: Easton, Porter in 



1893 and 1897; Stroudsburg, 



Porter in 1898; Germantown, 



Stone 6; Newtown, Smith 160. 

 Ohio: Portsmouth, Kellerman in 



1899 (Ohio State Univ. Herb . ) . 

 Indiana: Dune Park, Chase 1850, 



V. E. Chase 242. 

 Illinois: Jackson, French in 1906. 

 Michigan: Detroit, Farwell 1388; 



Grand Beach Springs, Hill 88 and 90 in 1908; Magician Lake, Umbach 2153. 

 Missouri: St. Louis, Eggert 254; Cliff Cave, Kellogg 9, 11; Swan, Bush 675; 



Eagle Rock, Bush 145. 

 Kansas: Cherokee County, Hitchcock PI. Kans. 883. 

 Delaware: Centerville, Commons 284, 298; Milton, Commons 350; Rehoboth, 



Commons 49, 50; Lewes, Hitchcock 561. 

 Maryland: Chesapeake Beach, Chase 3256, Hitchcock 1605, 1607, 1615, 1616, 



2408; between Chesapeake Beach and Chesapeake Junction, Hitchcock, 



1626, 1639. 

 District of Columbia: Ball 65, Chase 2401, 2412, Kearney 12, Pollard 398, 



Vasey 34, 111, Ward in 1878, Williams 1, 2. 

 Virginia: Alexandria, House 1058, Chase in Kneucker Gram. Exs. 553; Four- 

 Mile Run, Chase 5432, 5433; Norfolk County, Chase 2332, Kearney 301 in 



part, 1560; Munden, Mackenzie 1663; Virginia Beach, Williams 3098. 

 North Carolina: Roanoke Island, Chase 3212, 3237; Lake Mattamuskeet, Chase 



3206; Wilmington, Chase 4591, Hitchcock 1426; Chapel Hill, Chase 3074; 



Caraleigh Junction, Chase 3089; Biltmore, Biltmore Herb. 4292b. 



Fig. 274.— Distribution of P. sphaerocarpon. 



a Gram. & Cyp. 1 : no. 30. 1834. 



