CLASS XXI. ORDER III. 361 



§§ Subgenus . Stigmas three. 



Carex marginata. Early Sedge. 



Barren spike one; fertile spikes about two, approx- 

 imated, roundish, subsessile; fruit globular, downy, 

 two toothed, longer than the oblong-ovate scale ; radi- 

 cal leaves, when old, longer than the culm. 



A small species, three or four inches high, and the earliest 

 grass which flowers in this vicinity. The fertile spikes are 

 small and ovate or oblong Avhen in flower, but globular in fruit. 

 — Dry woods. — April. — Perennial. 



Carex lupulina. Hop Sedge. 



Barren spike one; fertile spikes three, on included 

 peduncles, oblong, approximate; bractes very long, 

 foliaceons ; fruit ovate, ventricose, nerved, with a 

 long, conical, two pointed beak, many times longer 

 than the ovate, mucronate scale. 



Very noticeable in meadows and ditches for its large, oblong, 

 nodding, turgid spikes of fruit. — June, July. — Perennial. 



Carex folliculata. Round spiked Sedge. 



Barren spike one; fertile spike commonly one, 

 about six flowered, with a visible footstalk; stigmas 

 three; fruit ovate, inflated, nerved, its beak with a 

 two parted mouth; scale ovate, shorter than the fruit. 

 Rather smaller than the last, with commonly a single, short, 

 subsessile, inflated, fruit-spike. — Swamps. — June. — Perennial. 

 Carex flava. Yellow Sedge. 



Barren spike one ; fertile spikes about three, sub- 

 approximate, elliptical, with included peduncles; fruit 

 ovate, reflexed, with a curved two-toothed beak, lon- 

 ger than the ovate-lanceolate scale. 



A slender carex of the middle size, with short, oval, yellowish 

 fruit spikes. — Moist ground. — June. — Perennial. 



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