MONTAiN'A I'.oTAN^' NoThlH 69 



nate single. Perigynla oval -ovate, about 3 mm. long by 2 mm. wide, nearly 

 flat above and triquetrous below, thin and papery, fully twice as large as the 

 smooth seed and empty above, finely punctate when young and granulated 

 when ripe, white when young and nearly black, at least at tip, when old, with 

 two lateral nerves and faint green lines abruptly contracted into the face when 

 young but appearing nerveless, spreading at about 45° angle, sessile, with 

 cylindrical beak about twice as long as wide. Scales very dark with narrow 

 green midrib. Bracts broad and leaf-like, nearly as wide as the leaves with 

 subulate tip, many times longer than the very short sheaths, but not over- 

 topping the stems. Leaves very dark-green, mostly 1-2 dm. long, quickly 

 reduced to chestnut-colored scales below, shortly acuminate, flat and smooth, 

 leathery without fibrillose sheaths. Stems tapering from base to slender tip, 

 1-1.5 feet high, growing in large clumps from shortly stoloniferous rootstocks 

 which are densely clothed with coarse leaf fibers and appearing as if abruptly 

 decumbent at base, leafy only on the lower third, sharply 3-angled. Plants 

 of alpine meadows, not in wet places. 



Carex Tolmiei Boott in Hook. Fl. Bor. Am. 2 224 (1S40). (Tolmie's Sedge). 

 All but the lower spikelets sessile and mostly overlapping, mostly oblong- 

 oblanceolate,, rarely oval and then very small, the upper ones conspicuously 

 smaller, the staminate one a little longer and wider than the rest, erect or 

 nearly so. Scales lanceolate, acute, fully as long but a little narrower than 

 the perigynia. Bracts with black auricles, but some of them with very short 

 sheaths. Leaves 3-4 mm. wide. Mt. Powell and Sperry Glacier region. This 

 has all the appearance of a hybrid between C. atrata and C. Montanensis with 

 which it grows. 



Carex Montanensis Bailey Bot. Gaz. 17 152 (1892). (Montana Sedge). All 

 Spikelets but perhaps occasionally the uppermost fertile one on capillary and 

 drooping peduncles from half to four times the length of the spikelets, fully 

 developed ones about 2 cm. long and 5 mm. wide, narrowly oblong, the stami- 

 nate one smaller and oblanceolate to obovate, all the fertile ones about the 

 same length though the uppermost one when sessile is often minute and very 

 few flowered. Scales mostly ovate and barely acute, sometimes lanceolate 

 and acute from half to nearly as long as the perigynia, often entirely purple. 

 Bracts with chestnut-colored auricles and the lowest with sheaths about 1 cm. 

 long. Leaves 2.5-3 mm. wide. Stems mostly densely clustered as if caespitose 

 but the crowns are distinctly separate. This is the most common sedge, hav- 

 ing the habit of C. limosa, in all the alpine meadows of nothwestern Mon- 

 tana, and if not the same as C. atrofusca is at least very near it. 



Carex aboriginum n. sp. Stems shortly stoloniferous, rigid, erect, smooth, 

 obtusely 3-angled, finely papillose, about 3 feet high, leafy on the lower third, 

 slender. Leaf sheaths hyaline and not fibrillose. All the leaves about half 

 the stems, not reduced below, flat, 3 mm. wide, long-acuminate, smooth, light- 

 green, bases light colored. Bracts green and subulate pointed, the lower 2-3 

 dm. long. Spikelets all peduncled, the upper fertile ones very shortly so, the 

 single terminal and staminate one on a filiform peduncle nearly its own 

 length and oblanceolate, about 2 cm. long and 3 mm. wide, fertile spikelets 

 2-3, nearly contiguous, oval, about 15 mm. long and 12 mm. wide, compactly 

 flowered, the upper flowers spreading and the lower mostly reflexed at ma- 

 turity by the crowding of the perigynia, about 25-30 flowered, fuscous with 

 age. Perigynia about 6 mm. long and 3 mm. wide, ovate, decidedly inflated, 

 papery, whitish and becoming fuscous when ripe. Somewhat flattened above, 

 triquetrous but with only 2 strong lateral nerves and about 5 finer ones on 

 the faces, finely punctate all over, which becomes almost papillose with age, 

 half filled by the spherical seed, minutely and abruptly stipitate; beak flat- 

 tened, serrate, papillose, purple, deeply notched and 2-toothed, scarcely more 

 than a triangular prolongation of the perigynia and about as long as wide 

 l)elow. Scales lanceolate, acuminate purpli.sh, with a light center, nearly as 

 long as the perigynia but much narrower, scabrous on the midrib. Stigmas 3. 



