35 () 
91 . CYPERACE.I;. 
— E. B. 2041. Schk. A. 4. II. b. 1. R. 526. — St. usually about 5 
inches high, slender. L. 2 or 3, nmch shorter than the stem. 
Fr. pale yellow, striated. — Bogs. Scotland. Northumberland. 
P. \ 1. VII. E. S. 
iii. Spikelets androgynous in a compound continuous or inter- 
rupted spike. Stigmas 2. 
* Spikelets sterile at the end. — f Boot creeping. 
6. C. incurva (Lightf.); spikelets collected into a roundish 
head, fr. inflated broadly ovate acuminate-rostrate, beak smooth 
obli(piely truncate, nut obomte compressed, st. smooth about as 
long as the leaves. — E. B. 927. Schk. Ilh. 95. H. a. 5. R. 533. 
—Root crecjiing extensively. St. 2 — 3 in. high, usually recurved 
so as to bring the large head down to the ground. Er. with its 
beak occasionally rather scabrous. — Sandy shores of the north. 
P.VI. S. 
7. C. (Iluds.); spikelets collected into a somewhat ovate 
head, fr. plano-convex ovate many-nerved, beak acutely bifid with 
finely serrated edyes, nut broadly oblong eomj)ressed, glumes with 
an excurrent rib, lowermost bract leaflike, st. rouyhish at the 
summit. — E. B. 1096. Schk. R. and Vv. 61. — St. slender, a foot 
high. Er. nerved ujion both sides. Spike often interrupted below. 
— Near the sea on the southern and eastern coasts. P. V. VI. 
8. C. intermedia [Good.) ; spikelets coWccted into an oblong 
interrupted sjiike upper and lower ones fertile intermediate barren, 
fr. ovate-lanceolate nerved narrowly margined bifld with serrated 
edges above, nut (usually abortive) elliptical, glumes shorter than 
thefr. acute the midrib not reaching the summit, st. with scabrous 
angles.— ii. B. 2042. Schk. B. 7- H. a. 14. R. 552.— Height 1—2 
feet. Er. slightly widened at the base of the beak which is 
deeply divided on one side. Lowermost bract with a slender leaf- 
like point. — Marshy places. P. V. VI. 
9. C. areriaria (L.); spikelets collected into an oblong inter- 
rupted spike upper barren lower fertile intermediate barren at the 
end, fr. ovate nerved winged and finely serrate from the middle to 
the bifid summit of the beak, nut bluntly ovate, glumes longer 
than thefr. acuminate, st. scabrous above. — E. B. 928. Schk. B. 
and Dd. 6. H. a. 13. — Height 1 foot. Root creeping extensively 
and binding loose sands. Lowermost bracts with slender leaf- 
like points. — Sandy places. P. VI. 
tt Root fibrous. 
10. C. vulpina (L.) ; spikelets compound collected into a c}’lin- 
drical crowded spike, fr. ovate-acuminate plano-convex nerved 
bifid finely serrate above divergent, nut oval compressed tipped 
