97. GRAMINES. 373 
14, Apgera. Spikelets with the rudiment (pedicel) of a supe- 
rior floret. Lower and lesser glume l-nerved; upper and 
larger 3-nerved, about equalling the lower pale. Otherwise 
like Agrostis. 
[Tr. V. STIPACEA:. Spikelets in an equal panicle, 1-flowered, 
without any rudiment. Outer pale convolute and hardened 
upon but not attached to the fruit, the extremity rolled up 
and jointed to a long awn.] 
[15. Stipa. Florets stalked. Pales coriacous, the inner entire. 
Awn evidently jointed to the pale, kneed and twisted.] 
Tr. VI. ARUNDINE. Spikelets laterally compressed, 1- 
flowered, or with a superior rudiment, or many-flowered. 
Fi. enveloped in long (short in Psamma) silky hairs. Styles 
and stigmas various. ‘“ Awn, when present, not twisted.” 
16. ARuNbDo. Glumes nearly equal, the lower rather the longer. 
Floret 1, with or without the superior rudiment of another 
reduced to a pedicel. Outer pale awned. Panicle diffuse. 
Styles short. Stigmas feathery. 
17. Psamma. Glumes nearly equal, the lower rather the 
shorter. Floret 1, with a superior rudiment of another. 
Outer pale with a short awn. Panicle spikelike. Styles 
short. Stigmas feathery. 
18. Puracmires. Glumes unequal, the lower much smaller. 
Florets 2—6, unarmed, the lower ones imperfect. Panicle 
diffuse. Styles elongate. Stigmas plumose. 
Tr. VII. CHLORIDE. Spikelets laterally compressed, 1- 
flowered in our plants and sometimes with a superior rudi- 
ment, placed in 2 rows on one side of a flattened rachis. 
19. Cynopon. Spikes fingered, 1-fiowered with a superior 
rudiment. Glumes nearly equal, patent. Pales equal, outer 
boatshaped compressed embracing the inner. Styles long, 
distinct. Stigmas feathery, protrudmg below the summit 
of the floret. 
20. Spartina. Spikes upright, in a raceme, 1-flowered. 
Glumes unequal, the upper long and acuminate. Pales un- 
equal, outer boatshaped compressed retuse. Styles elon- 
gated, united half-way up. Stigmas filiform, protruding at 
the summit of the floret. 
Tr. VIII. ORYZEZ. Spikelets laterally compressed, 1-flower- 
ed. Glumes wanting in our plant. 
21. Lezrsia. Pales 2, compressed, keeled, awnless ; lower 
