56 Muhlenbergia, Volume 5 



Carex mieroptera sp. nov. 



Clumps large, from short stout rootstocks, the culms 5-10 

 dm. high, aphyllopodic, much exceeding the leaves, strongly 

 striate, smooth on the angles: leaves with well developed blades 

 three to five to a fertile culm, on lower third but not bunched, 

 the upper the larger, the blades flat, 2-3.5111111. wide, 1-3 din- 

 long, roughened toward the apex: inflorescence consisting of 

 5-10 distinguishable but closely branched spikes, forming an 

 ovoid or suborbicnlar head 12-18 mm. long, 10-16111111. wide, the 

 spikes ovoid, 5-8 mm. long, 4-6111:11. wide, with a few inconspic- 

 uous stamiuate flowers at base and 15-50 closely packed ascend- 

 ing (but not appressed) perigynia above in several-many ranks, 

 the tips ascending or somewhat spreading: bracts obsolete or 

 scale-like: scales ovate-lanceolate, acute, brown with lighter 

 midrib, the maigins scarcely hyaline, slightly narrower and 

 slightly shorter than the perigynia: perigynia lanceolate, 3.5-4 

 mm. long, 1-1.5 mm. wide, plano-convex, lightly nerved, light 

 brownish or straw-colored at maturity, the body nearly entire, 

 occupied at base by achene, minutely sharp margined, rounded 

 at base, flattened above achene and tapering or abruptly nar- 

 rowed into the serrulate, bidentate beak one-fourth to one-third 

 the length of the whole: achenes lenticular, 1.25111111. long, 

 nearly 1 mm. wide, broadly ovoid: stigmas two. 



No. 9067, collected July 21st, at William Sinil.-y\s ranch 

 near Deeth, Elko county, Nevada, elevation 5800 feet. Type in 

 the herbarium of K. K. Mackenzie. 



The following specimens in the herbarium of the New York 

 Botanical Garden are to be referred to this species: 



Montana: Elk mountains near Blackhawk, Rydberg 3289 

 and Flodman joj, August 5, 1896; Aid ridge, Mrs. Emma Scheu- 

 ber, 1901; Cliff Lake, Madison county, 7500 feet, Rydberg and 

 /; * s y 379&\ July 27, 1897; Manhattan, Rydberg 21S6, July 17, 



1 - 95 



Wyoming: Upper Hoback Basin, 7500 feet, C. C. Curtis, 

 August, [900. 



Yellowstone National Park: Mammoth Hot Springs, 

 Wearm ?/6, June 24, 1902. 



