CYl'ERACE^. (sedge FAMILY.) ' 5do 



103. C. scabrata, Schw. Fertile sjiikes 4 - 5, cylindrical, erect, rather 

 distant, dense! y flowered, the lower on loni,^ stalks ; bracts without sheaths, exceed- 

 ing the culm ; jierigyida ovuid, contracted at the base, ]jrumini-iil/y few-nerved, 

 rowjh, spreading at maturity, with an ol)liqnely notched beak, longer than the 

 ovate slightly ciliate brown scale; culm leaves and bracts vt-ry roiir/h. — Wet 

 meadows and swamps, E. New England to Penn., Michigan, and northward. 



§ 8. Peri;/ynia slljjhtly inflated, 3-an(jled, snwotic and shhiinej (minutely pubescent 

 in No. 104 and one form of 108), green, with a straight tuperiiiij beali (short- 

 pointed in No. 107), terminating mostly in 2 small membranaceous teeth: 

 lower bracts green and sheathing: pistillate scales tawny or white ; stami- 

 nate spike solitary, stalked : pistillate spikes 3-4, loosely flowered, all (except 

 in No. 104) on filiform noddhirj stalks. 



* Fertile spikes mostly slender, remote; perigyma somewhat nerved: bracts equalling 



or exceeding the culm. — Debilks. 



-t- Leaves and sheaths more or less soft -pubescent : fertile snikes nearly erect. 



104. C. Sullivantii, Boott. Fertile spikes 3 -.5, commonly 4, narrowly 

 cylindrical, erect, rather dense, the upper approximate, the lowest often lemote, 

 tapering towards the base and slightly compound, all on rough peduncles; 

 bracts sheathing, not exceeding the culm; perigynia elliptical, hairy, slightly 

 stalked, very obscurely nerved, with an entire or notched orifice, rather longer 

 than the ovate ciliate rough-awned or merely mucronate white scale. — Woods, 

 Columbus, Ohio, Sullivant. 



10.5. C. Knieskernii, Dew. Less pubescent; fertile spikes 2 or 3, on 

 longer and somewhat spreading peduncles ; perigynia glabrous, more evidently 

 nerved: otherwise like the preceding: too little known. — Copses, Oneida Co., 

 New York, Dr. Knieskern, Dr. Vasry. 



-1- -t- Glabrous or nearly so : fcrtde spikes mostly nodding or sprcadim/, loose. 



106. C. aretata, Boott. Fertile spikes slender-cylindrical, narrowed to- 

 wards the base; perigynia ovate, short-stalked from a blunt base, short-beaked, 

 longer than the pointed scale. (C. sylvatica. Dew., not of Hudson.) — Woods 

 and meadows. New England to Pennsylvania, and northward. 



107. C glabra, Boott. Fertile spikes oblong or short-cylindrical, rather 

 dense and the terminal one oftener partly fertile ; perigynia elliptical-oblong, 

 not stalked, somewhat contracted at the base, and short-pointed at the apex, but 

 nearly beakless, minutely and sharply 2-toothed at the orifice, prominently 

 nerved, almost twice the length of the blunt brownish-margined scale. — Oneida 

 Co., New York, Dr. Knieskern. Near Philadelphia, C. E. Smith. Probably 

 not rare, but confounded with the next: also resembling C. formosa. 



108. C. debilis, Michx. Staminate spike occasionally fertile at the apex j 

 fertile spikes slender-cylindrical, with loose alternate flowers on a somewhat 

 zigzag rhachis ; perigynia S])indle-shaped or oblong-lanceolate, tapering into a 

 slender beak with a hyaline 2-lobed tip, twice as long as the obtuse and pointless 

 scale. (C. te'nuis, Rudtje. C. flexuosa, Aluhl.) — Moist meadows: rather com- 

 mon, esi)ecially southward. — Perigynium often rusty-dotted : — in var. ptBERA 

 minutely pubescent and ])assing to C. vcnusta, Dew. of the Southern States. 

 Bear Meadows, Centre Co., Penn., Prof. Porter. 



L & M— 4.5 



