MACKENZIE: NoTES ON CAREX 243 
exceeding the leaves, roughened on the angles at least above, the 
sterile culms numerous. Leaves (not bracts) with well-developed 
blades usually two to four to a fertile culm, near the base but not 
bunched, the sheaths overlapping, rather loose, white- or yellowish- 
scarious opposite the blades, the ligule not prolonged, the blades 
flat, glabrate to minutely pubescent, the upper the larger, usually 
2.5-4 mm. wide, 5-20 cm. long, strongly roughened; blades of 
sterile culm averaging much longer; terminal spike staminate, 
from but little to strongly peduncled, its peduncle smooth or little 
roughened, the spike linear, 1.5-3.5 cm. long, 2.5—4 mm. wide, 
the numerous closely appressed scales oblong-ovate, obtuse, pur- 
plish brown with green midrib and hyaline margins; _pistillate 
spikes two or three, widely separate, erect on slender usually 
much exserted peduncles, the spikes linear, 1.5-3.5 cm. long, 3-4 
mm. wide, loosely and alternately 6-15-flowered, the perigynia 
ascending ; bracts leaflet-like, shorter than the culm, the sheaths 
5-30 mm. long; scales obovate or ovate, obtuse or acutish, vary- 
ing to acuminate or even cuspidate, wider than and about two 
thirds the length of mature perigynia, straw-colored or purplish 
brown with green midrib and hyaline margins; perigynia oblanceo- 
late or fusiform, obtusely triangular, 3.5-4 mm. long, 1.5 mm. 
wide, lightly many-nerved, tapering to the base, tapering at apex 
into the minute slightly curving beak, 0.5 mm. long, the orifice 
oblique; achenes triangular, oblong, 2.5 mm. long, closely fitting 
the perigynia ; stigmas three. 
The type of the above species was collected by Mr. Charles K, 
Dodge at Port Huron, Michigan, on May 9, 1896, and is in my 
herbarium. A duplicate has been deposited in the herbarium 
of the New York Botanical Garden. 
Other specimens of this species, all in the herbarium of the 
Geological Survey of Canada, except where otherwise stated, have 
been examined as follows: 
Ontario: Guelph, A/ugh, June 8, 1905 (K. K. M.); Sarnia, 
Macoun 33639, June 11, 1901 (referred by Kiikenthal to C. 
tetanica); Wyoming, Macoun 33740, June 14, 1901; Galt, Herrtot 
63112, June 13, 1902; Belleville, Macoun 31974, June 15, 1862 
(in part). 
Micuican: Michigan Agricultural College, C. F. Wheeler, 
June 5, 1900. 
Maniropa: Brandon, Macoun 16662, June, 1880; Grand 
Valley, Brandon, Macoun 771217, June 16, 1880. 
New York: Jefferson Co. (Columbia Univ.). 
