11. 
12. 
13. 
14, 
TI. 
1. 
(14) 
Glyceria. Spikelets 2, -flowered. Flor- 
ets ovate, convex, awnless. Aquatic 
grass. 
Lophochlena. — Spikelets 0o-flowered, 
compressed, Glumw membranaceous. 
Inferior palea 2-lobed, aristate from the 
mid-nerve. Superior palea 2-carinate 
with a pair of dentate appendages. 
Briza.—Spikelets 2— o-flowered, densely 
distichous. Florets awnless. Inferior 
palea inflated, with auriculate cordate 
base; 
Festuca.—Spikelets 2- o-flowered. Flor- 
ets lanceolate, convex. Superior palea 
ciliate. Style inserted on the apex of 
the ovary. 
Bromus.—Spikelets oo-flowered. Florets 
lanceolate. Style inserted below the 
apex of the ovary on its ventral side. 
Flowers not glumaceous. 
Pentacena.—Calyx 2-seriate, persistent. 
External sepals 3, cucullate at the apex, 
ending in a spine; internal sepals 2, 
mucronate. Fruita utricle. 
Trigynia. 
Tillea.—Calyx 3-sepalous. Corolla 3- 
petalous. Fruit 3 follicles, each 2- 
seeded. Aquatic. 
