214 



CONTRIBUTIONS FEOM 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, Richer 1277; North 



Berwick, Parlin 1188, 1198; Farmington, Fernald 500; Foxcroft, Fernald 502; 



Orono, Fernald 504; Fayette, Chase 3392; Chesterviile, Chase 3436; Canton, 



Parlin 2000. 

 New Hampshire: 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. 

 Rhode Island: Buttonwoods, 



Bailey in 1890 (Brown Univ. 



,_ "'•" _ „ .__ . Fig. 220.— Distribution of P. implicatum. 



New York: Preston, Coville m 



1884; Washington County, Burnham 25; Utica, Haberer in 1900; Verona, 



Haberer in 1900; Sylvan Beach, .House 1231; Chautauqua, M7Z 184 in 1907; 



Jamaica, Bicknell in 1904; Valley Stream, Bicknell in 1905; Rosedale, Bick- 



nell in 1904. 

 Ontario: Algonquin Park, Macoun 22024. 

 Ohio: Sandusky, Morris A55; Hawks, Kellerman 6885. 

 Indiana: Miller, Ctae 1546; Dune Park, JKZZ 99 in 1905, 185 in 1907; Porter 



County, Hill 163 in 1906. 

 Illinois: Oregon, White in 1885; Manito, Wilcox 57; Chicago, Nelson 66. 

 Michigan: Port Huron, Dodge in 1909; Keweenaw County, Farwell 597b, 643a; 



Port Alger, Wheeler in 1895. 

 Wisconsin: Sauk County, Eggertin 1903 (Mo. Bot. Gard. Herb.). 

 Iowa: Iowa City, Shimek 10; without locality, Ball 817. 



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. 



