to to 
TABLE VH. 
. 15 . 
. 16. 
Fig. 17. 
Fig. 18. 
Fig. 19. 
Fig. 20. 
Fig. 21. 
Fig. 22. 
Fig 23. 
Fig. 24. 
Fig. 25. 
Fig. 26. 
gramine.e — continued. 
Aira. — a. Spikelet. b. Floret with its glumellas. 
Melica. — a. Glutnes. b. Two fertile florets from the 
spikelet, with the rudiment of a third floret (neuter) 
between them. c. One fertile floret from the spike- 
let, with its neuter floret. 
Holcus. — a. Glumes, b. Two florets from the spike- 
let; the upper one barren (with stamens only) and 
awned ; the lower one perfect and awnless. 
Arriienatherum. — a. Spikelet, with two florets ; the 
lowest floret barren, with a long twisted awn ; the 
upper (shown separately at b ) perfect, with a short 
straight bristle. 
Hierochloe. — a. Glumes, b. The three florets, of 
which the two lateral ones are triandrous, and 
without a pistil ; the middle one perfect, and 
diandrous. 
Sesleria. — a. Spikelet. b. Floret. 
Panicum. — a. Unequal glumes, with the neutral floret 
inside the smaller glume, b. Fertile floret. 
Setaria. — a. Bristly involucre with the spikelets. 
b. Unequal glumes, with the neuter floret inside 
the smaller one. c. Perfect floret. 
Poa. — a. Spikelet. b. Floret. 
Triodia. — a. Spikelet. b. Glumellas of a floret. 
Bkiza. — a . Spikelet. b. Floret. 
Dactylis. — a. Spikelet. b. Floret. 
