1922] Wiegand,—Carex laxiflora and its Relatives 197 
North Adams, J Hoffmann. New York: Alcove, 1892, C. L. 
Shear; DeKalb, 1916, O. P. Phelps, nos. 1491 and 1501; Nicholville, 
1915, Phelps, no. 1479. PENNsyLvANIA: Bells Gap, Blair County 
1876 J. W. Lowrie (Bailey Herb.) Ontario: J. M. Macoun, nos. 
78474, 84003, and 94084; Kingston, 1906, A. B. Klugh, nos. 19 and 
31; Belleville, W. Boott Herb.; Britannia Highlands, 1911, J. Macoun, 
no. 84005. LAKE SUPERIOR REGION: Eagle Harbor, 1860, W. Boott 
Herb., Porcupine Mts., 1868, Henry Gillman in W. Boott Herb. 
This is one of the most distinct of the various segregates of C. 
laxiflora, but is apparently without a name. The moniliform pistillate 
spikes have suggested the name applied. The species is usually 
recognized with ease by this character together with the granulose 
culms and purple basal sheaths. 
5. Carex crebriflora sp. nov. Subgracilis viridis vel laetoviridis; 
culmis saepissime retrorse scabris; vaginis infimis bruneis; latissimis 
foliis infimis 3-5 mm. latis, latissimis caulinis 3-4 mm. latis; vaginis 
angulo suberosis; bracteis culmum multo superantibus; spicis contiguis; 
masculis brevibus ab foemineis occultis, antheris 2-2.2 mm. longis, 
foemineis 5-12 mm. longis confertis, rhachi laevi, squamis ovatis- 
oblongis peracutis vix cuspidatis; perigyniis 3.8-4.5 mm. longis, 
35-42-nervatis fusiformibus, base contractis, apice sensim pera- 
cutis vel subobliquis non rostratis. 
Plants moderately slender, green or pale green; culms usually 
retorsely scabrous; basal sheaths brown;broadest basal leaves 3-5 mm. 
wide; broadest cauline 3-4 mm. wide; sheaths more or less erose on 
the angles; bracts much exceeding the staminate spike; the spikes 
contiguous, crowded, the staminate short, obscured by the pistillate; 
anthers 2.0-2.2 mm. long; pistillate spikes 5-12 mm. long, dense, the 
rhachis smooth, the scales oblong-ovate or oblong, very acute, scarcely 
cuspidate; perigynia 3.8-4.5 mm. long, 35-42-nerved, fusiform, 
narrowed at base, gradually very acute at the straight or slightly 
oblique often beak-like apex. Bottomlands: South Carolina to Florida 
and Louisiana. Specimens examined: ViRGINIA: Chick Swamp, 
Richmond, 1894, J. R. Churchill (Herb. Bailey) doubtfully this species; 
SoutH CAROLINA: Dewey Herb. Fiortpa: Low woods, Appalachi- 
cola River bottoms near Chattahoochee, 1882, A. H. Curtiss (TYPE, 
in Gray Herb.), another specimen is Curtiss, no. 3267. ALABAMA: 
rocky ravine on west side of Hurricane Creek near its mouth, Tusca- 
loosa County, 1911 (R. M. Harper, no. 141). Mrssissrpepr: Starkville, 
1889, S. M. Tracey, nos. 20, 21, and 28 (Herb. Bailey). LOUISIANA: 
Alexandria, 1841, J. Hale, no. 34 (Herb. Bailey). 
As shown by the long bracts, aggregated spikes, and often re- 
trorsely scabrous culms, this species is more closely related to C. 
blanda than to the species with acute perigynia. The perigynia how- 
