CYPERACEAE (SEDGE FAMILY) 



223 



370. C. steU., 

 V. onnantha. 



on the inner face, 3-4 mm. long., \ or \ exceeding the ovate pointed 

 brownish scale. (C. echinata, var. microstachys Boeckl. ; C. sterilis 

 Am. auth., not Willd.) — Open low ground, Lab. to Alaska, s. to 

 Md.,0., Mich., etc. June-Aug. (Eurasia.) Fig. ;375. 

 Var. ormantha Feriiald. Inflorescence 2-0 cm. 

 long, of 2-4 very remote S-9-flowered spikes, the ter- 

 minal one with a clavate base 0.5-1 cm. long ; perl- 

 gynia as in the typical form, mostly twice as long 

 as the scales. — Less common. Fig. 376. 



Var. excelsior (Bailey) Fernald. Tall and slen- 

 der, 0.3-1 m. high ; inflorescence 3-5.5 cm. long, 

 spikes 3-9, distinct, only the lowermost remote, 

 12-20-flowered, at first ellipsoid, with the perigynia 

 ascending, later subglobose, with strongly reflexed 

 perigynia i longer than the scales. — Nfd. to Mich, 

 and N. C. Fig. 377. 



Var. cephalantha (Bailey) Fernald. The coarsest form, 

 3-7 dm. high ; inflorescence cylindric or slightly moniliform, 

 3-7.5 cm. long, the 4-8 short-cylindric spikes \b-AS)-flowered ; 

 perigynia ovate. ((7. echinata, ysly. Bailey.) — Nfd. to Mich., 

 B. CandN. C. Fig. 378. 



Var. angustata Carey. Extremely slender or almost seta- 

 ceous, 1-2 dm, high (in shade often higher) ; leaves 0.5-1.5 mm. 

 wide; inflorescence 0.76-2.6 cm. long, the few 3-15- 

 yf flowered spikes approximate; the divaricate peri- 

 |\ gynia lanceolate or lance-ovate, 2.5-3 mm. long, 

 \^ twice exceeding the scales. ( G. echinata, var. Bailey ; 

 C. sterilis, var. Bailey.) — N. S. co Ct., w. Que., 

 111., and Wise. Fig. 379. 



28. C. sterilis Willd. Coarse, 1 m. or less tall ; 

 leaves flat, shorter than or equaling the culms ; in- 

 florescence 0/3-6 subglobose or thick-cylindric densely 

 flowered olive-green crowded or distinct spikes ; the thick strongly 

 many-nerved perigynia broad-ovate, 3-3.5 mm. long, 2-3 mm. 

 broad, squarrose or with recurved tips. (C echi- 

 nata, var. conferta and C. atlantica Bailey.) — 

 Coastal bogs and pine-barrens, Nfd. to Fla. , rarely 

 inland to n. Me., Adirondack Mts., N. Y., and 

 Mt. Sorrow, Pa. June, July. Fig. 380. 



29. C. scirpoides Schkuhr. Slender, \.b-b^m. 

 high; the leaves 1-2.5 mm. loide ; the 2-5 spikes 

 all fertile, all sterile, or variously mixed, usually subglobose, 

 4-5 mm. in diameter, the terminal long-clavate at base; peri- 

 gynia firm, plump, olive-green or -broivn, more or less nerved 

 or essentially nerveless, broadly deltoid-ovate, obscurely short- 

 beaked and with slightly thickened margin, 2.3-3.2 mm. long, 

 1.5-2 mm. broad, finally wide-spreading or recurved, 

 much exceeding the oblong or ovate blunt scales. 

 ( C. interior Bailey.) — Damp or wet soil, e. Que. 

 to Hudson Bay, B. C, Fla., and Ariz. May-Aug. 

 Fig. 381. 



Var. capillacea (Bailey) Fernald. Stiff, culms 

 almost bristle-like ; leaves about 0.5 mm. broad, 

 often involute ; perigynia strongly nerved. (C. in- 

 terior, var. Bailey.) — N. H. to N. Y., N. J., and Pa. 351. c. scirpoides. 



Var. Josselynii Fernald. Perigynia lance-subu- 

 late, barely 1 mm. broad, mostly ascending. — By St. John R., Me. 

 30. C. se6rsa E. C. Howe. Culms soft, in loose stools, 3.5-6.6 

 dm. high; leaves shorter, soft, pale, 2-4 mm. broad; inflorescence 

 c. seorsa. 2.5-7 cm. long, of 2-6 mostly remote subglobose or ellipsoid 6-20- 



379. C. stell., 

 V. angustata. 



sterilis. 



I 



