﻿412 Mackenzie: Notes on Carex 



Massachusetts: Dedham, Forbes, June 15, 1904, and June 9, 

 1914 (K. M.); Waverley, W. Booti, June 30, 1853 (N. Y.); 

 "Mass.", I>am (C). 



Rhode Island: Olney (C.)- 



New York: North Elba, Peck (N. Y.); Amherst, Sartwell 

 (N. Y.). 



New Jersey: Lawrence, Mercer County, S. Brown, May 28, 

 29, 1904 (P-)- 



Pennsylvania: Sellersville, Bucks County, Pollard, June 2, 

 1899 (K. M.); Sellersville, Pretz, June, 1883, May 16, 1896, and 

 June, 1899 (P.); Plumsteadville, ''J.C.M:\ June, 1866 (P.). 



Illinois: Fountaindale, Bebh, 1870 (N. Y.); "III." Vasey 

 (N.Y., C). 



Minnesota: Milaca, Sheldon, June, 1892 (C); Nichols, 

 Sheldon, June, 1892 (C). 



Iowa: Fayette, Fink, June, 1895 (N. Y.); St. Petersburg, 

 Parf3' (C). 



Missouri : Lake City, Jackson County, Mackenzie, May 23, 1897 

 (K. M.). 



Nebr.\ska: "Nebraska Ter.", apparently duplicate of type 

 (C). 



Carex angustata Boott; Hooker, PI. Bor. Am. 2: 218. 1840 

 Carex angustata Boott (in part). III. Car. 4: 173. pL 586, f. 2. 1867/ 

 Carex acuta Bailey, Proc. Am. Acad. 22: 86. 1886. 

 Carex acutina Bailey, Mem. Torrey Club i: 52. 1889. Not 



"Carex acutina Bailey", Holm. Am. Journ. Sci. 16: 34; or 



Kiikenthal; Engler, Pflanzenreish z^^: 319. 



Loosely cespitose, with short ascending stolons covered with 

 brown scales, the culms 3-6 dm. high, strongly aphyllopodic, 

 slender, 3-4 mm. wide at base, 1.5 mm. above, exceeding the 

 leaves, roughened above on the angles, brownish reddened and 

 more or less filamentose at base. Leaves with well-developed 

 blades usually three to five to a fertile culm, on the lower third, 

 the blades light green ascending, flat to base with slightly revolute 

 margins, smoothish beneath, 2.5-3 ^nm. wide, 1-4 dm. long, much 

 roughened towards the attenuate apex, the sheaths smooth, 

 membranous, easily breaking and slightly yellowish tinged 

 ventrally. Staminate spike usually one, from little to strongly 

 rough -peduncled, 2.5-5 cm. long, 3-5 mm. wide, the scales oblong- 



