340 
CYPERACEiE. 
Schk. X. and Gg. 76. — St. 1 — 2 feet high, triquetrous, rough. 
Sheaths of the I. connected by netlike filaments. Glumes nearly 
black with a green keel prolonged into a cuspidate point. Fr. 
glaucous-green. — Dr. Boott has shown that this is the true 
C. canescens (L.) but it is surely better not to change the name 
by which it is universally known. — Island near Toom bridge in 
Lough Neagh. P. VII, I. 
26. C. atrata (L.) ; spikes 3 — 4 ovate-oblong shortly stalked 
contiguous ultimately drooping, the lowest rather distant and 
with a longer stalk, fr, elliptical-triquetrous with a short terete 
slightly notched beak broader but not longer than the acute glumes, 
nut elliptical triquetrous blunt apiculate, lower bract foliaceous. 
— E. B. 2044. Schk. X. 77- H. b. 8.— St. 1—1$ foot high, tri- 
angular, usually smooth. Glumes dark purple with a slender 
pale midrib. Fr. yellowish. — Alpine rocks. P. VI. VII. — E. S. 
v. Terminal spike barren solitary, except in spec. 27, 30, 31, 
32, 33, which sometimes have more. 
* Stigmas 2. 
27. C. Goodenovii (Gay) ; barren spike 1 (or 2), fertile 2 — 4 
cylindrical sessile lowermost shortly stalked, lowest bract leafy 
with rounded auricles, fr. elliptical lenticular with many nerves 
vanishing upwards and a very short entire beak, nut roundish 
very blunt with a short slender beak. — E. B. 1507. Schk. Aa. 
and Bb. 85. H. a. 42. C. csespitosa Sm., Koch, &c. — Laxly cae- 
spitose. St. about a foot high, acutely triangular, rough at the top. 
L. slender, flat, sheaths not filamentous. Bracts without sheaths. 
Fr. greenish, often tinged with purple. Nut rather broader than 
long. Glumes shorter than the fr., purple with a slender pale 
green keel. — Specimens from the " table-land above Caness, Glen 
Isla," given to me by Dr. Greville as a variety of this species, 
appear to be distinct from it and approach C. aquatilis, their 
lower fertile spikes are narrowed below with lax distant fl. and 
stalked, fr. elliptical without nerves, nut oblong narrowed below, 
St. triquetrous rough towards the top, I. broad. Can this be 
C. dacica (Heuffi.) Bot. Zeitg. 1838. 247. Bluff, und Fingerh. 
Comp. Fl. Germ. ed. 2. ii. 521. ? I am unable to refer it to either 
of our species. — Of C. angustifolia (Sm.) I know nothing ; the 
late Prof. Don referred it here. — Marshes. P. V. VI. 
28. C. Gibsoni (Bab.) ; barren spike 1, fertile 2 — 4 oblong nar- 
rowed downwards, lower shortly stalked, bracts leafy, fr. about 
^ longer than the glume lanceolate gradually narrowing into a very 
short entire beak, with many nerves vanishing upwards, nut 
broadly obovate rounded at the end and shortly beaked. — Ann. 
Nat. Hist. xi. 168. t. 5. — St. 6—8 in. high, triquetrous with flat 
or concave faces, rough at the top. L. flat, slender, slightly 
rough on the edges and keel. Bracts without sheaths, lowest 
