86 Rhodora [May 
Orange County: August 11, 1889, G. V. Nash. Tompkins County: 
in dry woods, Six Mile Creek, Ithaca, July 29, 1913, E. L. Palmer, 
no. 167; near Beech Woods, Six Mile Creek, July 29, 1914, F. P. 
Metcalf, no. 1744; damp thickets, Violet Island, Cascadilla Creek, 
Ithaca, August 18, 1913, E. L. Palmer, no. 168; dry woods along 
lower state road, Cayuga Heights, Ithaca, July 18, 1916, F. P. Metcalf, 
no. 5874; damp alluvial thickets, Fall Creek, Forest Home, Ithaca, 
August, 1916, F. P. Metcalf, nos. 5868, 5869; bottomland woods and 
thickets in alluvial soil at head of Cayuga Lake, Ithaca, August, 1915, 
A. J. Eames, no. 3566, and Eames & MacDaniels, no. 3567 (TYPE in 
Gray Herb.), August, 1916, F. P. Metcalf, nos. 5866, 5867, 5870. DEL- 
AWARE: New Castle County: Wilmington, E. Tatnall. VIRGINIA: 
Page County: Stony Man Mountain and vicinity, near Luray, alt. 
3800 ft., August 28, 1901, Æ. S. & Mrs. Steele, no. 189. Smyth County: 
Middle fork of Holston River, Marion, alt. 2100 ft., August 6, 1892, 
J. K. Small. West Viratnta: Monroe County: Sweet Springs, alt. 
550 ft., E. S. & Mrs. Steele, no. 218. Pocohontas County: gravelly 
soil by East fork of the Greenbrier River, near village of Travellers 
Repose, September 19, 1904, A. H. Moore, no. 2345; same, J. M. 
Greenman, no. 89. Tucker County: banks of Blackwater River 
near Hendricks, September 10, 1904, J. M. Greenman, no. 56. KEN- 
rucky: Harlan County: Big Black Mountain, August, 1893, T. H. 
Kearney Jr., no. 236. 
This plant in aspect resembles E. canadensis, E. striatus and E. 
australis. In the herbaria it has passed under all three names. Its 
characters are, however, distinct and constant, and it is really one of 
the most distinct of the species here treated. It differs from Æ. cana- 
densis and E. robustus in the more spreading spikelets, straight awns, 
longer and more slender glumes, uniformly hispidulous lemmas, and 
shorter palet. From E. striatus it may be recognized by the coarser 
habit, glabrous foliage, longer rachis-joints, scabrous lemmas, and 
longer palet. From Æ. australis and its variety glabriflorus it is told 
by the glabrous leaves, slender straight glumes, and usually longer 
more open spikes. ŒE. riparius is very common in central New York. 
E. striatus Willd., Sp. Pl. i. 470 (1797). E. villosus Muhl. in 
Willd. Enum. Hort. Berol. 131 (1809). Æ. striatus, var. villosus 
Gray, Manual, ed. 5, 639 (1867). E. striatus, var. Ballii Pammel, 
Ia. Geol. Surv. Suppl. Rep. 1903, 347 (1904).— Plant slender: leaves 
thin, 6-10 mm. wide, green, villous on the upper surface; sheaths 
close, villous: spikes rather short, 4-9 em. long exclusive of awns, 
slightly nodding, long-exserted; rachis-joints very short, 1.5-2.5 
(-3) mm. long; spikelets small, 1- rarely 2-flowered, spreading: 
glumes very narrow, 0.4-0.6 mm. wide, 1.4-3 cm. long, terete and 
indurated toward the unstriated yellowish base, straight, villous: 
