214 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
The type specimens of P. meridionale and P. implicatum as well as the greater num- 
ber of the specimens referred to each respectively seem specifically distinct, P. 
implicatum being distinguished by the implicate panicle, with pilose axis and drooping 
branches, and less delicate culms than those of P. meridionale; but in occasional 
specimens these distinctions do not hold good, These intermediate specimens are 
referred to P. meridionale or to P. implicatum according to their apparent affinity to 
the type of the one or the other respectively. More robust specimens of P. implicatum 
approach P. huachucae. One specimen, Dodge 38, Port Huron, Michigan, has the char- 
acteristic habit of P. implicatum, but the axes of the implicate panicles are not pilose. 
DISTRIBUTION. 
Wet meadows, bogs, and sandy soil, cedar and hemlock swamps, Nova Scotia to 
New York and west to Michigan and Iowa. 
Nova Scotia: Digby, Howe & Lang 190 (Gray Herb.). 
New Brunswick: St. Andrews, Fowler in 1900. 
QueBec: Lake Memphremagog, Churchill in 1902 (Gray Herb.). 
MAINE: Cape Elizabeth, Chase 3454, 3459, Scribner in 1895; East Auburn, Merrill 
2, 7, 8, 9, 16; Manchester, Scribner 14, 15; Cumberland, Ricker 1277; North 
Berwick, Parlin 1188, 1198; Farmington, Fernald 500; Foxcroft, Fernald 502; 
Orono, Fernald 504; Fayette, Chase 3392; Chesterville, Chase 3436; Canton, 
Parlin 2000. 
New Hampsuire: Jaffrey, [Hitchcock 127; White Mountains, Hitchcock 130. 
Vermont: Barnet, Blanchard in 
1888; Burlington, [Hitchcock 
132. 
MassacHusetts: Cambridge, 
Blankinship in 1896. 
Connecticut: Southington, An- 
drews 20, Bissell 5590, 5622, 
12002; Waterford, Graves 165; 
Griswold, Graves 78. 
Ruope Isuanp: Buttonwoods, 
Bailey in 1890 (Brown Univ. 
Herb.). 
New York: Preston, Coville in 
1884; Washington County, Burnham 25; Utica, Haberer in 1900; Verona, 
Haberer in 1900; Sylvan Beach, House 1231; Chautauqua, //ill 184 in 1907; 
Jamaica, Bicknell in 1904; Valley Stream, Bicknell in 1905; Rosedale, Bick- 
nell in 1904. 
Ontario: Algonquin Park, Macoun 22024. 
Onto: Sandusky, Morris A55; Hawks, Kellerman 6885. 
InpraNna: Miller, Chase 1546; Dune Park, Hill 99 in 1905, 185 in 1907; Porter 
County, Hill 163 in 1906. 
Inuinors: Oregon, Waite in 1885; Manito, Wilcox 57; Chicago, Nelson 66. 
MicnicANn: Port Huron, Dodge in 1909; Keweenaw County, Furwell 597b, 648a; 
Port Alger, Wheeler in 1895. 
Wisconsin: Sauk County, Hggert in 1903 (Mo. Bot. Gard. Herb.). 
Iowa: Iowa City, Shimek 10; without locality, Ball 817. 
Fic, 220.—Distribution of P. implicatum. 
124. Panicum huachucae Ashe. 
Panicum nitidum pilosum Torr. Fl. North. & Mid. U.S. 146. 1824, not P. pilosum 
Swartz, 1788. ‘In dry woods, &c. New-York.’”’ The type, in the Torrey Herbarium, 
consists of four vernal culms with immature panicles. 
