C YPER ACEJE. 
often overtopping the spikes. Spikes lax below. Glumes oblong, 
blunt, purplish-brown with a broad green band up the midrib ; 
on the barren spike paler, obovate-lanceolate. Perigone nearly 
twice us long us the nut, gradually narrowing from below the 
middle to the top, pale green. Nut rather longer than broad. 
Root creeping. — Hebden Bridge, Yorkshire. Mr. S. Gibson. 
P. VI. E. 
29. C. rigida (Good.) ; barren spike 1, fertile 2 — 4 cylindrical 
lowermost shortly stalked, lowest bract leafy with roundish au- 
ricles, fr. elliptical lenticular without nerves with a very short 
entire beak, nut roundish blunt with a slender beak. — E. B. 
2047- C. saxatilis Schk. I. and Tt. 40. H. a. 40.— St. usually 
6 — 8 in. high, sometimes a foot or more, acutely triangular, rough 
at the top. L. broad, flat. Bracts without sheaths. Fr. greenish 
with purple spots. Nut rather longer than broad. Glumes 
about as long as the fr., purple with a green keel. Spikes gene- 
rally short. — Alpine rocks. P. VI. VII. 
30. C. aquatilis (Wahl.) ; barren spikes 1 or more, fertile 3 or 
4 elongated narrowed downwards, lower ones stalked, bracts 
leafy overtopping the spikes, fr. elliptical lenticular without nerves 
with a very short entire beak, nut oblong narrowed below with 
a short slender beak, st. trigonous smooth. — E. B. S. 2758. — St. 
1 — 2 feet high, triangular, the faces convex. L. narrow-linear, 
sheaths not filamentous. Bracts without sheaths. Fr. yellowish- 
green. Nut less abruptly beaked than in the two preceding. 
Glumes variable in length and breadth, longer or shorter but 
always narrower than the fr., oblong-lanceolate, reddish-purple 
with a pale midrib. Spikes long, slender, usually lax below. — 
y3. elatior ; 3 — 4 feet high, glumes oblong blunt shorter than the 
fruit. — Alpine table-lands of the Clova mountains in flat marshy 
spots. /3. In the valley, near the bridge at Clova. P. VII. S. 
31. C. ccespitosa (L.) ; barren spikes 1 (rarely 2), fertile 3 or 
4 cylindrical all nearly sessile, lowermost bract slender rather 
foliaceous short, fr. oblong-elliptical lenticular with many nerves 
and a short entire beak, nut roundish-obovate blunt with a short 
beak, sheaths of the I. connected by filamentous network. — C. stricta 
(Good.) E. B. 914. Schk. V. 72. H. a. 43. not Lam.— Densely 
csspitose. St. 2 — 3 feet high, acutely triangular with rough 
angles. Glumes lanceolate, acute, about as long as the fr. but 
narrower, dark purple with a green keel. Fr. ranged regularly 
in 8 or 9 rows. — Gay {Ann. Sc. Nat. n. s. xi. 191-) has shown 
that this is the true plant of Linnieus, and as Lamarck's American 
C. stricta was described previously to that of Goodenough, he has 
wisely restored the Linna:an name to this plant and named our 
No. 27. C. Goodenovii. — Marshes. P. VI. 
32. C. acuta (L.) ; barren spikes 1—3, fertile 3 or 4 slender 
cylindrical-acuminate erect in fruit, lowermost bract foliaceous 
