MACKENZIE: NOTES ON CAREX 541 
hyaline margins and more or less strongly purplish-tinged, about 
the width of but shorter than mature perigynia, exposing the upper 
part; perigynia small, 2.5 to nearly 3 mm. long, 1.25 mm. wide, 
green, puberulent, the body little longer than wide, obscurely 
triangular in cross-section, 2-ribbed, otherwise nerveless, from 
short to rather strongly stipitate, abruptly contracted into the 
slender, minutely serrulate, slightly colored or hyaline-tipped 
shallowly bidentate beak 0.25-0.75 mm. long; achenes triangular 
with strongly convex sides closely enveloped by perigynia, nearly 
2 mm. long, truncate at apex, round-tapering at base; style short 
and slender; stigmas three. 
This species, lly collected in the Sierra Nevada Mountains 
of California, has no immediate relationship with Carex globosa 
Boott, to which it has been referred. As pointed out by Prof. 
Bailey, its real relationship is with Carex deflexca Hornem. and its 
allies. It resembles real Carex deflexa in its small perigynia, 
2.5-3 mm. long with shallowly bidentate beak. It, however, is 
densely cespitose with stout rootstocks, while Carex deflexa is 
stoloniferous and has slender rootstocks. The staminate spikes 
in the plant of the Sierra Nevadas are more developed, the 
perigynia seem less strongly stipitate, the spikes are usually more 
flowered, and the plant is much stiffer. Carex Rossi, with larger 
deeply bidentate perigynia, seems constantly. different. 
SPECIMENS EXAMINED: 
CaLiForNIiA: ‘“‘Lake Tahoe to Bear Valley,” Kelloce, and 
“Rocky Mts. California,” Kellogg (type sheets in Gray Herbarium) ; 
Sierra Nevada, Braman & Kellogg, June 9, 1870 (N. Y.); Sierra 
Nevada Mts., El Dorado County, Brainerd 116, July 19, 1897 
(H; Brainerd). 
“WASHINGTON: Wenatchee Mts., Kittitas County, Elmer 453; 
June 28, 1897 (Piper). 
7. Carex Rossi Boott, in Hook. Fl. Bor.-Am. 2: 222. 1840 
Carex Novae-Angliae var. Rossii Bailey, Bot. Gaz. 10: 207. 1885. 
Carex deflexa var. Rossii and var. media Bailey, Mem. Torrey 
Club 1: 43. 1889. 
Carex Novae-Angliae var. deflexa Bailey, Proc. Am. Acad. 22: . 
124. 1886. 
Carex deflexa var. Farwellii Brit., Brit. & Br. Ill. Fl. 1: 334. 1896. 
