HITCHCOCK AND CHASE—NORTH AMERICAN PANICUM. 213 
DISTRIBUTION, 
Low sandy woods or open ground of the Coastal Plain, Connecticut to Michigan and 
south to North Carolina. 
Massacuusetrs: Nantucket Island, Bicknell in 1899 and 1906. 
Connecticut: Waterford, Graves in 1898. 
New York: Garden City, Bicknell in 1906; Woodmere, Bicknell in 1902; Valley 
Stream, Bicknell in 1904; 
Hempstead, Bicknell in 1906. 
New Jersey: Grenloch, J/eritage 
in 1897 (Phila. Acad. Herb.). 
PENNSYLVANIA: Woodbourne, 
Jahn in 1904 (Phila. Acad. 
Herb.). 
Inprana: Dune Park, //ill 53 in 
1907. 
MIcHIGAN: Cass County, Pepoon 
in 1904. 
Marytanp: Chesapeake Beach, 
ITitcheock 1612; Chesapeake 
Junction, /Titcheock 2409; Beltsville, Chase 3745, 3757, 3762, 3825; Pindell, 
Lfitchcock 1628. 
District or Cotumsra: /litchcock 126, Kearney 27. 
VirGINIA: Cape Henry, Chase 2339. 
Nortn Carona: Washington, Ashe in 1899; Scranton, Chase 3201; Beaufort 
and Hyde counties, Ashe. 
TENNESSEE: Tullahoma, Biltmore Herb. 9953e (Biltmore Herb.). 
Fig. 218.—Distribution of P. albemarlense. 
123. Panicum implicatum Scribn. 
Panicum implicatum Scribn. U. S. Dept. Agr. Div. Agrost. Bull. 11: 43. f. 2. 1898. 
‘Low marshy ground, Cape Elizabeth, Maine. Collected by F. Lamson-Scribner, 
July 26, 1895.’ The type, in Hitchcock’s herbarium, consists of several plants in the 
early branching state, 45 to 50 cm. high, with mature primary panicles 5.5 cm. long 
and smaller secondary ones. There is a duplicate type in the National Herbarium. 
Panicum unciphyllum implicatum Scribn. & Merr. Rhodora 8: 123.1901. Based 
on Panicum implicatum Scribn. 
DESCRIPTION. 
Vernal form with tufted, slender culms 20 to 55 cm. high, erect or ascending, papil- 
lose-pilose, with spreading hairs; sheaths shorter than the internodes, papillose- 
pilose; ligules 4 to5 mm. long; blades firm, erect or ascending, 3 to 6 cm. long, 3 to 6 
mm. wide, rarely longer or wider, more or less involute- 
acuminate, the upper surface pilose with erect hairs 3 to 
4 mm. long, the lower surface papillose-pubescent with 
subappressed hairs; primary panicles long-exserted, py- 
ramidal in outline, 3 to6 cm. long, about as wide, the 
axis long-pilose, the branches flexuous, in typical speci- 
mens tangled and the lower drooping; spikelets 1.5 mm. 
long, 0.9 mm. wide, obovate, obtuse, papillose-pilose; 
first glume about one-fourth the length of the spikelet, 
obtuse; second glume and sterile lemma equaling the fruit at maturity; fruit 1.3 mm. 
long, 0.9 mm. wide, broadly elliptic, obtuse, very minutely umbonate. 
Autumnal form erect or spreading, rather loosely branching from the lower and mid- 
dle nodes, the primary culms becoming more or less geniculate below; leaves and pani- 
cles reduced; winter leaves lanceolate-cvate, pilose above; the rosette appearing late. 
Fic,219.—P.implicatum. From 
type specimen. 
