SEDGE FAMILY 



335 



140, Carex kelloggii \\'. Boutt. 



Kellogg's Sedge. 



Fig. 816. 



Carer acuta t^allida Boott, 111. Car. 4: 166. pi. 554. 1867. 



Carer kelloggii W. Boott in S. Wats. Bot. Calif. 2: 240. 1880. 



Carc.x- vulgaris lipocarpa Holm, Am. Journ. Sci. IV. 17: 308 (in part). 1904. 



Carc.v limiiaca Holm, Am. Journ. Sci. IV. 20: 301. /. i-i. 1905. 



Care.x hindsii brevighima Ktikenth. in Engler Pflanzenreich 4-": 307. 1909. 



Carer leiiticularis paullifructus KiJkenth. I.e. 308. 1909. 



Cespitose with very short ascending stolons, the culms pliyllo- 

 podic, slender, Z-7 dm. high, light brownish and somewhat 

 librillose at base, somewhat roughened above. Leaf-blades light 

 green, flat or somewhat channelled at base, 1.5-3 mm. wide, the 

 sheaths smooth, very thin and white hyaline ventrally ; staminate 

 spike usually solitary, 12-36 mm. long, 3-4 mm. wide; pistillate 

 spikes 3-5, sessile or nearly so, approximate or slightly separate, 

 linear, 1.5-4 cm. long, 4-6 "mm. wide, often attenuate at base, 

 the numerous perigynia appressed-ascending ; lowest bract ex- 

 ceeding culm ; scales obtuse or acutish, exceeded by perigynia, 

 dark with broad light colored center ; perigynia 2.5 mm. long, 

 1.25 mm. wide, pale green, slenderly nerved, densely granular, 

 strongly stipitate, abruptly minutely beaked, the beak dark-colored, 

 entire; achenes lenticular; style slender; stigmas 2. 



Wet places, Transition and Canadian Zones; Montana ro Colorado, west 

 to Alaska and California, where confined to the higher Sierra Nevada. Ty]ie 

 locality: Alta, Sierra Nevada Mountains. 



141. Carex aperta Boott. 



Columbia Sedge. 



Fig. 817, 



Civcx aperta Boott in Hook. Fl. Bor. Am. 2: 218. pi. 219. 1840. 

 Care.v acuta prolixa Bailev, Proc. Am. Acad. 22: 86. 1886; not llornem. 

 Carer turgidula Bailey, B'ot. Gaz. 25: 271. 1898. 

 Carex bvruia Howell, Fl. N. W. Am. 1: 702. 1903. 



Stoloniferous, the culms 5-10 dm. high, sharply triangular, 

 rough above, dark-tinged at base. Leaf-blades fiat with slight - 

 1\- revolute margins, 2.5-5 mm. wide, roughened towards apex; 

 terminal spike staminate, peduncled, 2-3.5 cm. long, 3 mm. 

 wide ; lateral spikes 2-3, pistillate, oblong, or linear-oblong, 

 sessile to slender-peduncled, approximate, 12-48 mm. long, 5 

 inm. wide, closely flowered (or loosely at base) with numer- 

 ous, ascending perigynia ; lowest bract about equalling culm ; 

 scales narrower than but mostly exceeding perigynia, lanceo- 

 late, sharp-pointed; perigynia obovoid, 3 mm. long. 1.5 mm. 

 wide, somewhat inflated at maturity, greenish or straw- 

 color, membranaceous, nerveless, rounded to a slightly stipi- 

 tate base, abruptly minutely beaked, the beak bidentate, 0.5 

 mm. long ; achenes lenticular ; style slender ; stigmas 2. 



Low grounds. Transition Zone; British Columbia to northern Oregon, 

 cast to Montana. Type locality: Columbia River. 



142. Carex interrupta Boeckl. 

 Green-fruited Sedge. Fig. 818. 



Care.v angustata vcrticillata Boott in Hook. Fl. Bor. Am. 2: 218. 1840. 

 Care.v verticillata Boott, III. Car. 1: 67. pi. 1S3, f. 2. 1858; not Zoll. & 



Mor. 1854-5. 

 Carex interrupta Boeckl. Linnaea 40: 432. 1876. 



Cespitose with short ascending stolons, the culms 3-6 dm. 

 high, smooth, exceeding leaves. Leaf-blades thin, flat, 3-5 

 mm. wide, not glaucous, the sheaths smooth, not tilamentose; 

 terminal spike staminate, 1.5-3.5 cm. long; pistillate spikes 

 3-5, erect, more or less strongly separate, occasionally stami- 

 nate at apex, oblong to linear, the upper 1-3 cm. long, densely 

 flowered and sessile or nearly so, the lower 4-9 cm. long, 

 loosely flowered at base, and strongly peduncled, the perigynia 

 very numerous, ascending ; lowest bract about equalling the 

 culm; scales ovate or ovate-lanceolate, acute or obtusish, 

 about length of perigynia, reddish purple with lighter center 

 and narrow hyaline margins ; perigynia suborbicular or short 

 oval, olive green, very small, 1.5-1.75 (2) mm. long, 1-1.25 

 mm. wide, biconvex, 2-edged, nerveless, membranaceous, 

 rounded at base and apex, very abruptly and very minutely 

 short-beaked, the beak emarginate or bidentulate; achenes 

 lenticular; stN'le slender, jointed with achene; stigmas 2. 



Low grounds along streams. Humid Transition Zone; Oregon and 

 Washington. Type locality: Columbia River. 



