﻿Mackenzie: Notes on Carex 615 



somewhat narrower, containing three to six closely aggregated but 

 readily distinguishable gynaecandrous ovoid or ovoid-oblong spikes 

 10-14 "iiTi- long, 6-10 mm. wide, rounded or short-pointed at 

 apex, the lateral rounded and the terminal one short-tapering 

 at base, the numerous perigynia appressed-ascending in many 

 ranks with rather conspicuous tips, the staminate flowers few and 

 inconspicuous; lowest bract short-prolonged, 6-18 mm. long, or 

 scale-like, the others scale-like; scales ovate or ovate-lanceolate, 

 acutish to short acuminate, chestnut brown with lighter midvein 

 and conspicuous white-hyaline margins, narrower and markedly 

 shorter than perigynia; perigynia olive-green or in age brownish, 

 ovate, 6 mm. long, 3 mm. wide (widest near top of achene), thin 

 except where distended by achene, strongly winged, slenderly 

 nerved on both faces (nearly obsolete in age) , rounded and sessile 

 at base, abruptly contracted into a broad flat bidentate non- 

 hyaline slightly colored beak 1.5 mm. long, winged and serrulate 

 to the tip, the teeth strictly erect and contiguous but distinct; 

 achenes lenticular, obovoid-oblong, thickish, substipitate, 2 mm. 

 long, 1.25 mm. thick, short-pointed; style slender, not enlarged 

 at base; stigmas two. 



This handsome species of the western mountains is a member 

 of the Ovales, and is probably most closely related to Carex brevior 

 (Dewey) Mackenzie (see page 605). The type specimen is in the 

 National Herbarium, and was collected by Mr. W. W. Eggleston 

 (No. 61 81), at Kebler Pass, Mt. Carbon, Gunnison County, Col- 

 orado, August 22, 1910. 



Specimens examined 



Colorado: West Mancos, Baker, Earle & Tracy 322, 9500 ft. 

 alt., July 4, 1908 (N. Y.); Kebler Pass, Mt. Carbon, Gunnison 

 County, Eggleston 6181, 3120 m. alt., August 22, 1910 (N., N. Y.); 

 Ohio Peak, Gunnison County, Eggleston 5905 in part, 2900 m. 

 alt., July 9, 1910 (N. Y.). 



Utah: La Sal Mountains, Rydherg & Garrett 8753, 8754, 

 9028, 9029, 9075, 9076, July, 1911 (N. Y.); Abajo Mountains, 

 Rydberg &• Garrett 9771, 9845, August, 191 1, 2500-3700 m. alt. 

 (N. Y.); Uintas, Watson 1239, 10,000 ft. alt., July, 1869 (C). 



Wyoming: La Plata Mines, E. Nelson 5150, August 25, 1898 

 (N. Y.). 



" Carex Limelliana sp. nov. 



Cespitose from short-creeping dark colored woody fibriUose 

 rootstocks, the culms 3-6 dm. high, aphyllopodic, stout, 5-8 mm. 



