Class III. 
TRIANDllIA. 
Valves unequal, shorter than the stalked floret';. Lower palea irregularly 2-toothed, setigerous. Scales longer 
than the ovarium, subulate. Spike compound. 
178. Cynosurus. Involucrum l-leaved, with pinnatifid divisions, containing two spikelets. Glume 4-5- 
flowered, shorter than the florets. Lower palea very acute, upper bifid-toothed. Scales hairy. Seed coated, 
furrowed. Spike compound. 
179. Koleria. Spikelets compressed. Glume 2 or 3-flowered, beardless, 2-valved : the valves shorter than 
the lowest floret. Palese 2, the outer beardless or bearded under the point. 
180. Dactylis. Many spikelets heaped in a head, 1-sided. Glume 2-7-flowered. Lower palea under the end, 
which is emarginate, setigerous, upper bifid, toothed. Scales hairy. Seed loose, not furrowed. Panicle com- 
pound with short branches. 
181. Glycerin. Spikelet slender. Glume 5-7-flowered. Valves 2, truncate, with transparent membranous 
edges, shorter than the florets. Lower palea eroded or many-toothed, navicular, embracing the upper, which 
is bifid-toothed. Scales connate. Seed furrowed. Panicle nearly simple. 
182. Festuca. Glume beardless, 2-valved : valves nearly equal, shorter than the lowest floret. Paleas 2, the 
outer one bearded at the end. Seed inclosed in the pales. 
183. Mygalurus. Glume 1 or 2-valved, many-flowered, shorter than the spikelet : one valve very small. 
Paleee 2, one of them bearded near the end. Seed inclosed in the paleee. 
184. Bromus. Glume 3-20-flowered. Valves shorter than the florets, which are imbricated in two rows. 
Lower palea cordate, emarginate below the end, sometimes torn in two, with a straight beard. Scales ovate, 
smooth. Seed coated, furrowed. Panicle compound. 
185. Brachypodium. Spikelets stalked, alternate in each tooth of the rachis. Stalks broad and thick. Glume 
3-15-flowered. Valves shorter than the florets. Paleae entire, lower setigerous at the end, upper bluntly trun- 
cated, generally edged with stiff reflexed hairs. Scales pilose. Seed coated, furrowed. 
186. Uniola. Spikelets compressed. Florets imbricated in two rows, the lower only abortive. Glume 
3-20-flowered, shorter than the florets. Lower palea navicular at the end, abruptly cut off and m. tronate be- 
tween the lobes, the upper subulate, somewhat bifid-toothed. Scales bifid. Seeds turbinate, with two horns, 
not furrowed. Panicle compound, loose. 
^ 187. Tricuspis. Glume 5-7-flowered. Valves navicular, shorter than the florets. Lower palea bifid-toothed, 
between the teeth and on each side mucronate : the upper truncate, almost emarginate. Seed 2-horned. 
188. Diplachne. Glume 7-9-flowered : the upper valve mucronate at the end. Lower palea twice torn, with 
a bristle beneath the divisions, upper sub-truncate, emarginate. Seed not furrowed. Panicle simple, much 
branching. Branches alternate, filiform. 
189. Ceratochloa. Glume 12-18-flowered. Valves shorter than the florets. Pale£e bifid-toothed : the lower 
mucronate between the teeth. Ovarium 3-horned. Seed coated, furrowed, 3-horned. Panicle nearly simple. 
Spikelets compressed. Florets imbricated in two rows. 
190. Schismus. Glume 3-6-flowered. Valves the length of the florets, or longer. Lower palea cordate, 
emarginate, its rib extended between the lobes into a filiform mucro, the upper entire. Seed obtuse, nearly 
furrowed. Panicle simple, contracted, spike-shaped. 
191. Triodia. Glume 3-5-flowered. Valves navicular, longer than the florets. Paleee bifid-tooth^: lower 
with a thick tooth-shaped mucro between the teeth. Scales lanceolate, smooth. Ovarium with a bifid cRverging 
beak, 
192. Beckmannia. Spikelets 1-sided, 3-5-flowered. Glumes unequal, navicular, with a little stalk at the 
base, obtuse at the end, spatulate, nearly the length of the florets. Paleae nearly equal. Scales lanceolate. 
Seed loose, not furrowed. Spike compound. 3 spikelets in each tooth of the rachis. 
193. Melica. Glume unequal, 2-5-flowered, membranous, nearly the length of the florets, of which the upper 
are incomplete, abortive and stalked. Scales truncate, fringed. Seed loose, not furrowed. Panicle simple or 
compound. 
194. Molinia. Glume 2-4-flowered, unequal. Paleas conical, lanceolate, acute, much longer than the glume, 
the upper barren and abortive, or often in its place, a formless rudiment. Scales subtruncate. Seed with two 
points from the remains of the style, with a broad furrow. Panicle compound. Spikelets slender. 
195. Briza. Glumes navicular, compressed, nearly cordate at the base, many-flowered (3-14), shorter 
than the florets which are imbricate in two rows. Lower palea cordate at the base, embracing the upper, 
which is nearly round and much shorter. Seed with two short filiform beaks. Panicle compound, loose, 
branches pendulous. 
196. Poa. Glume 2-20-flowered. Valves shorter than the florets. Paleas sometimes woolly at the base, the 
upper bifid-toothed. Scales smooth. Seed furrowed. Panicle more or less branching or scattered. 
197 Eragrostis. Glume 4-10-flowered. Valves shorter than the paleee, which are imbricated in two ranks. 
Upper palea reflexed, its edges folded back, shell-shaped, entire, fringed, persistertt. Seed loose, 2-horned, not 
furrowed. Panicle compound, more or less scattered. 
198. Megastachya. Spikelets elongated : the florets imbricated in two rows. Glume 5-20-flowereA Valves 
shorter than the florets. Lower palea emarginate, with a point between the divisions, upper bifid-toothed. 
Seed loose, not furrowed. Panicle compound. 
5. Inflorescence spiked. Spikelets solitary, seldom many-flowered, with the upper flower abortive and differently 
formed. Glumes with a keel, not opposite. Lower palece generally bearded, seldom beardless, the upper with 
two keels. (Chloridea.) 
199. Sclerochloa. Glume 3-5-flowered. Valves obtuse, shorter than the florets. Lower palea cordate, emar- 
ginate, obtuse, upper entire. Scales emarginate. Seed with a bifid beak. Spike simple. Spikelets l-sided or 
dichotomous. 
200. Eleusine. Glume 5-7-flowered. Valves obtuse. Paleae obtuse, upper bifid-toothed. Scales truncate, 
fimbriate. Seed inclosed in a separate membrane, broadly and deeply furrowed. Inflorescence digitate. 
Spikelets 4-5, erect, 1-sided. 
201. Dactyloctcnium. Spikelets 1-sided. Glume 5-7-flowered. Lower valve with a falcate spine-shaped 
mucro. Lower palea navicular, ventricose, subulate, upper bifid-toothed. Scales truncate, fringed. Seed 
square, warted, obtuse, loose. Spikelets digitate, 4-5, erect or horizontal. 
202. Leptochloa. Glume 3-5-flowered. Valves lanceolate, acute, nearly as long as the florets. Lower palea 
navicular, acute, upper bifid-toothed. Seed loose, furrowed. Panicle simple. Branches alternate, simple, with 
nearly 1-sided spikelets. 
203. Cynodon. Spikelets 1-sided in a simple row. Glumes membranous, persistent, shorter than the florets, 
and only embracing them at the base. Fertile floret with the upper palea bifid-toothed. A rudiment of an 
abortive floret, stalked, smooth, ciavate. Scales truncate. Seed loose, not furrowed. Spike digitate. Spike- 
lets 4-5-filiform, simple, slender. 
204. Dinebra. Glume 2-5-flowered. Valves subulate. Paleje bifid, emarginate, the lower setigerous under 
the end. Scales truncate, or somewhat lanceolate. Inflorescence spiked, acuminate, the point of the rachis 
protruding beyond. Spike simple or compound. Spikelets 1-sided, alternate, remote, pendulous. 
205 Echinaria. Spikelets close together. Glume 2-4-flowered. Valves mucronate, shorter than the florets. 
Lower palea truncate, fringed, terminated by 5 lanceolate unequal bristles, upper cordate, emarginate, with two 
similar bristles. Scales truncate. Seed loose, gibbous, not furrowed, with two diverging beaks. Spike simple, 
capitate. 
6. Inflorescence spiked. Spikelets solitary, in pairs, or several together, 1-flowered, or many-flowered. Glumes 
opposite, equal. Lower palea bearded or beardless, upper with two keels. (Cerealia.) 
206. Triticum. Glume 2-valved, many-flowered, shorter than the spikelet : the valves nearly equal, beard- 
less, or with one beard enclosing the florets. Paleae 2, one of them being bearded from the end Seed inclosed 
in the palest, rarely otherwise. 
D 
