CYPERACEjE — GRAMINE.&. 
349 
remote with short exserted stalks, bracts overtopping the spikes 
long foliaceous flat sheathing, fr. large ovate pluno-convex sca- 
brous winged ciliate- serrate narrowed into a long bifid beak, nut 
oblong-obovate trigonous with a long slender beak. — Schk. Ddd. 
121. C. secalina Sm. not Willd. — Fr. very large, twice as long as 
the glumes. I have not seen native specimens. — Small valley 
about three miles west of Panmure, Forfar. Mr. G. Bon. S. 
63. C. ampullacea (Good.) ; fertile spikes 2 or 3 remote cylin- 
drical erect stalked, bracts foliaceous without sheaths, fr. sub- 
globose inflated with a long narrow bifid beak, " nut obovate tri- 
quetrous," st. smooth obtusely angled. — E. B. 780. Schk. Tt. 107. 
H. b. 65. — St. 1 — 2 feet high, with rounded faces and 3 slight 
angles. L. glaucous, channeled. — Very wet bogs. P. VI. 
64. C. vesicaria (L.) ; fertile spikes 2 or 3 remote cylindrical, 
bracts foliaceous without sheaths, fr. ovate-conical inflated nar- 
rowing gradually into a subulate bifid beak, " nut elliptical tri- 
quetrous," st. with acute angles. — E. B. 779- Schk. Ss. 106. 
H. b. 64. — St. 2 feet high, with flat faces and 3 strongly marked 
angles. L. rather broad, green. — Wet bogs. P. V. 
65. C. paludosa (Good.) ; glumes of the barren spikes obtuse, 
fertile spikes cylindrical obtuse, bracts foliaceous without sheaths, 
fr. oblong-obovate compressed with a short bifid beak, " nut 
roundish-obovate triquetrous." — E. B. 807. Schk. Qq. 103. — 
St. 2 — 3 feet high, angles rough. L. broad. — Wet places. P. V. 
66. C. riparia (Curt.) ; glumes of the barren spikes acute, fer- 
tile spikes acute cylindrical, bracts foliaceous without sheaths, fr. 
oblong-ovate convex on both sides narrowed into a short broad 
cloven beak, " nut pyriform trigonous." — E. B. 579- Schk. Rr. 
105. H. b. 66. — St. 3 feet high, angles rough. L. broader than 
in the preceding. — Wet places. P. V. 
Order XCI. GRAMINEiE. 
Fl. perfect or unisexual, 1, 2 or more seated on a common 
rachis which is contained within an involucre of 1 or 2 valves 
(glumes) or rarely wanting, the whole forming a locusta or 
spikelet. Each fl. of 1 or 2 scales (paleaV) of which the outer or 
lower is simple and usually keeled, the inner with 2 nerves or keels. 
Hypogynous scales 2, 3, or none. Stam. hypogynous, 1 — 6. 
Anth. versatile, notched at both ends. Ovary 1 -celled. Styles 
2, rarely 1 or 3. — L. with split sheaths. 
Tribe I. PANICEM. Spikelels dorsally compressed, 1 -flowered 
or with 1 fl. and an inferior rudiment resembling a third 
glume. Glumes 2, unequal, the lower often very small. 
Styles elongated. Stigmas feathery. 
