1901] Scribner & Merrill, — New England Panicum III 
J. F. Collins, Aug. 26, 1893. CONNECTICUT: New Haven, /. A. Allen, 
Aug. 5, 1879; Southington, Z. Andrews, June 29, 1898. 
$ $ Sheaths smooth or soft pubescent. 
17. PANICUM MACROCARPON Le Conte in Torr. Cat. Pl. N. Y. 9r. 
1819. — A rather stout, glabrous perennial 3—10 dm. high with broad, 
lanceolate leaves, glabrous sheaths and few-flowered, open panicles 
5-15 cm. long. Culms glabrous, more or less branched above; 
nodes smooth or the lower ones rarely slightly bearded. Sheaths 
shorter than the internodes, striate, smooth or rarely sparingly pubes- 
cent, generally somewhat ciliate on the margins; ligule very short; 
leaf-blades 5-17 cm. long, 2-4 cm. wide, cordate clasping at the 
base, long-acuminate, glabrous on both sides or with few scattered 
strigose hairs, usually ciliate on the serrulate-scabrous margins, 
especially near the base. Panicle exserted or often somewhat en- 
closed in the upper sheath; rachis glabrous; branches alternate, de- 
compound, glabrous, spreading-erect. Spikelets 3-3.4 mm. long, 
oval to obovate; first glume one-third to one-half as long as the 
spikelet, acute or obtuse; second and third glumes pubescent, turgid, 
9-11-nerved; flowering glumes 2.5-3 mm. long minutely pubescent 
at the apex. 
General distribution: Dry rocky woods, thickets, etc., Maine and 
Ontario to the District of Columbia, west to Wisconsin and Iowa. 
June to September. 
MAINE: Orono, rocky open woods, 346 M. L. Fernald, July 26, 
1895 and Aug. 2, 1889; Madison, dry woods, M. Z. Fernald, Aug. 
1, 1892; North and South Berwick, M: L. Fernald & J. C. Parlin, 
June 13-14, 1896; East Auburn, Æ. D. Merrill, Aug. 1898; North 
Berwick, /. C. Parlin, July 17, 1891; Woodstock, 7. C. Parlin, 
1887. VERMONT: Manchester, 216 JZ. A. Day, June 29, 1898; 
MassACcHUSETTS: Mt. Wachusett, woods, 7. F. Collins, July 14, 1893 ; 
Framingham, 613 Æ. C. Smith, July 8, 1892; Æ. C. Smith, July 1897 ; 
South Framingham, Æ. Z. Sturtevant, July 6, 1890; Nonquit, Æ. Z. 
Sturtevant, June 18, 1889; Revere, Oak Island, Æ. A. Young, July 
7, 1878 and June 25, 1892, also W. P. Rich, July 5, 1891; Winches- 
ter, C. Æ. Perkins, June 19, 1893; Mt. Holyoke, 7. Blake, June, 1858; 
Andover, 7. Blake, July, 1882; Dorchester, /. A. Churchill, July 1, 
1882; West Quincy, 7. A. Churchill, June 29, 1888; Ashland, 
W. Deane, July 3, 1884; Rockport, Pigeon Cove, C. W. Swan, July 
15, 1881; Lowell, moist thickets, C. W. Swan, July 28, 1859; Blue 
Hills, W. H. Manning, Aug. 11, 1894; Middlesex Fells, W. Z. 
Manning, Aug. 4, 1894; Stony Brook Reservation, Metropolitan 
Park, G. Z. Chandler, June 17, 1895. CONNECTICUT: Waterford, 
dry sandy woods, Fog Plain, 89 C. B. Graves, July 5, 1898. 
18. PANICUM LATIFOLIUM Linn. Sp. Pl. 73. 1753 (excluding 
reference to Sloane). (Panicum latifolium Walt. Fl. Car. 73. 1788 ; 
