Cyperacese. 
393 
35. Male spikelets 2—4 (rarely only 1); fem. spikelets 
elongated-cylindric, lax below, finally drooping. Lower 
bract exceeding the top of the terminal male spike- 
let. Ls gen grass-green, broad, the edges gen. rolling 
back when dried. Stem 40—100 cm. C. paludosa differs 
in having 3 stigs, and in the bidentate beak of its fr.— 
Varied with long-acuminate glumes exceeding the com¬ 
pressed fr.: v. prolixa Fr. — Marshes, water-side; scat¬ 
tered (wanting in G. W.). 5 . . . acufa Fr. 2321. 
— Male spikelet 1, rarely 2; fem. spikelets oblong-cylin- 
dric, erect. Lower bract not exceeding the top of the 
male spikelet. Ls gen. glaucous, rather narrow, gen. 
rolled inwards when dried. C. vulgaris Fr.—Varied: 
Spikelets variegated with black and green, or glumes 
almost entirely hidden by thefr., the spike, consequently, 
of a green colour (v. chlorocarpa Wimm.), or glumes 
and the free part of the fr. blackish (v. melaena Wimm.); 
also b. juncella Fr. Stem taller, slenderer, stiff-erect; 
ls only half as broad.—Damp meadows; distrib. 4 
Goodenowii Gay. 2322.*) 
36 ( 9). The terminal spikelet androgynous, the male fls 
below and the fem. fls above, the other spikelets are 
female . ....... 37 
— The terminal spikelet containing male fls . . 41 
37. L.-sheaths reddish, wearing into netted filaments. Glumes 
of the fem. spikelets brown with a green middle nerve. 
Rt-stock stoloniferous. — Damp meadows, rare; G. V. 
B. Z. 5.Buxbaumii Wahlnb. 2323. 
— L.-sheaths brown, entire. Glumes black or blackish 
violet. Rt-stock tufted ...... 38 
38. Spikelets short, globular or ovoid, closely pressed against 
each other. Lower bract scarious or narrow-foliaceous 39 
— Spikelets all, or at least the fem. ones, oblong, only 
crowded, the lower spikelet more distant and longer- 
peduncled. Lower bract foliaceous. Type of C. atrata 40 
39. Stem rough above. Spikelets small (7—9 mm long). Fr. 
greenish, C. alpina Sw.—Alp.; G. (Upper Engadine in 
various places, Albula). 7 . Vahlii Schk. 2324. 
— Stem smooth (10 cm). Spikelets larger (8—12 mm). Fr. 
blackish violet.—High Alp. 7 . . nigra All. 2325. 
40. Stem smooth (20—40 cm). Fr. greenish.—Alp. 7 
atrata L. 2326. 
*) C. Dematranea Lagg. (Seedorf) is allied to C. elytroides according 
to Fries, to C. limula according to Christ.— C. turfosa Fr. with a taller, 
stiffer stem, and the lower l.-sheaths rather net-fibred (C. stricta differs in 
its thickly tufted rt-stock) is indicated near Lustorf, Canton Freibg., and on 
the St. Bernard. 
27 
