458 CXLIV. GRAMINED. 
— empty Cien above flowering one, all u 
wned. Panicle cecinit into a dense seitilo 
ical or ‘ona ted spike 
Many empty unawned gl dem mes in à separato spiele 
from the fertile one. Panicle dense, unilateral 
* Only 1 empty glume above the flowering ones, 
PR 
Rhachis = ae — with long hairs enveloping the 
m onm Lowest flower male. Panicle 
Rhachir of t the poet glabrous. Spikelets dicecious, 
w ^ closely imbri glumes.  Pericarp 
thick an 
Rhachis of ^ apie panas or shortly or loosely 
hairy. Spike hrodite 
Grain free from re we ea a (esoop i in a few Poe). 
Spikelets usually flat, the flowering glumes keeled, 
Flowering glume and Ix E scarious or 
à the glum or shortly 
Spikelets in globular clusters in a long in- 
rrupted ceci po — broadly 
Panicle onse and spikelike. ` Palea ‘not 
Flowering ` glumes membranous or "herbaceous, 
Spikelets fow-fowered, yr in dense one- 
ided dense — 
panicle MT tts ee 
— n 
4 
Upper glumes eniin Ed Aoma 
erdi emn Air any-fowered. Flowering 
u 3-n 
Spikelets fowellowered, Flowering glumes 
Spikelets flattened "Flow wering glumes with hya * 
Iine tips, cruci is 2-lobed, the Lp formi 
a small point between the lobes or just ‘below 
k wih 3 Wines nerves no ing 
esi 
Grain adnate to the palea when ripe, 
Ovary pubescent, o Fl i 1 
" a = below the entire or 
3-ho 
], nbateen orned. Spikelets very flat. 
Ovary glabrous. Bises o als narrow. 
Flowering glumes entire, acute or awned 
83. HETERACHNE. 
84. LAMARCKIA. 
sometimes rudimentary oF 
85. PHRAGMITES. 
86. DisTICHLIS. 
87. ELYTROPHORUS 
$8. KÆLERIA. 
89. DacrxLis. 
90. CENTOTHECA- 
91. ERAGROSTIS. 
92, Poa. 
93. ScHEDONORUS- 
94. GLYCERIA. 
95. Briza. 
96, Bromus. 
97. CERATOCHLOA. 
98, FEsTUCA. 
