70 



THE GENUS CAREX IN CALIFORNIA 



Loc: Tuolumne Soda Spgs., Bolander 5056. 



Refs.: Carex Buxbaumii Wahl. Vet. Akad. Handl. Stockholm 24: 163 (1803); W. Boott in 

 S. Wats. Bot. Cal. 2: 238 (1880); Kiik., in Engler, Pflzr. 420 : 393 (1909). C. polygama Schk. Riedgr. 

 1: 84, pi. 10 f. 76 (1801) (not J. F. Gmel. 1791), type from Germany and Denmark. C. subulata Schum. 

 Fl. Saell. 1: 270 (1801) (not J. F. Gmel. 1791), type from Fahrum, Saellandia. "C. fusca All." Bailey, 

 Mem. Torr. Club 1: 63 (1889). 



92. C. Helleri Mackenzie n. sp. (Fig. 38). Very densely cespitose, the 

 culms 0.5-3 dm. high, slender but strict, sharply triangular, roughened above, 

 purplish tinged at base; leaf -blades flat with slightly revolute margins, 2-3 mm. 



wide; spikes 3-5, closely approximate, the ter- 

 minal gynaecandrous, sessile or short-peduncled, 

 the lateral pistillate, sessile or nearly so, oblong, 

 10-20 mm. long, 4.5-6 mm. wide, densely 25-50- 

 flowered; lowest bract shorter than culm; scales 

 ovate-lanceolate or lanceolate, acuminate or 

 aristate, purplish-black with light midvein, 

 longer but much narrower than perigynia; 

 perigynia broadly oval to suborbicular, much 

 flattened, 2.5-3.5 mm. long, nearly as wide, 

 puncticulate, nerveless or nearly so, minutely 

 and sparingly serrulate, abruptly beaked, the 

 beak 0.25 mm. long, bidentate; achenes short 

 stipitate. 



Type Locality: Mt. Rose, Washoe Co., 

 Nevada (Heller 9975). 



High altitudes (8500-13600 feet) in the 

 Sierra Nevada and White Mts. of California 

 from Tulare Co. north to El Dorado Co. and in 

 / the high mountains of western Nevada. 



Fig. 



38. Carex Helleri Mackenzie. 

 X 7; 



a, inflorescence, X 1; 6, scale 

 c, perigynium, X7. 



Locs.: Mt. Brewer, Brewer 2840; Mt. Dana, 

 Bolander 5072, Hall & Babcock 3610, Congdon; Cirque 

 Peak, Hall & Babcock 5498; Denels Peak, Hall & Babcock 

 5507; Carson Pass, Brewer 2122; Yosemite, Bolander 5049 

 (in part); Harrison Pass, Jepson 5039; Alta Meadows, Geo. B. Grant; Kings River, Lemmon; Lake 

 Lucille, Hall & Chandler 4663; Mono Co., Congdon; Sonora Peak, A. L. Grant 522 (in part); Alta 

 Peak, Dudley 1534; Kaweah Peaks, Dudley 2114, 2449; Pyramid Peak, Brewer 2145 (in part); Mineral 

 King, Dudley 1127; Little Kern River, Purpus 5140; Farewell Gap, Purpus 5261; White Mts., Mono 

 Co., Shockley 613; Mt. Whitney, Vernon Bailey 2073; White Mts., Jepson 7395. 



Refs.: Carex Helleri Mackenzie. "C. atrata L. var. nigra Boott" W. Boott in S. Wats. 

 Bot. Cal. 2:239 (1880). 



93. C. epapillosa Mackenzie. Culms 1.5-6 dm. high, stiff, sharply triangular, 

 smooth; leaves all toward the base of the culms, the blades 3-8 mm. wide, nearly 

 flat; spikes 3-6, approximate or the lowest a little separate, sessile or short-peduncled, 

 oblong-ovoid, 1-2.5 cm. long, 6-10 mm. wide, closely flowered in many rows; scales 

 lance-ovate, sharp-pointed, brownish-black, narrower than but about equaling or 

 exceeding the perigynia, the midvein more or less prominent; perigynia broadly 

 oval or obovate, 3.5-4 mm. long, 1.5-2 mm. wide, obscurely nerved, not granular; 

 achenes slender stipitate. 



Type Locality: Marysvale, Utah (M. E. Jones 5345). 



Mountain meadows, Wyoming to Utah and California. In California it is 

 reported only from Sonora Peak. 



Loc: Sonora Peak, Tuolumne Co., A. L. Grant 394, 413, 522 (in part). 

 Ref.: Carex epapillosa Mackenzie in Rydb. Fl. Rocky Mts. 138 (1917). 



