ANALYSIS OF THE GENERA. 73 
Inflorescence a loose or spreading panicle. 
Glumes equal, obtuse .......e.see.eeeee08. Minium, v. 1. p. 81. 
Glumes unequal, pointed or awned ... AGrosris, v. 1. p. 91. 
Trise 5. STIPACEAR. 
Inflorescence an erect panicle, awn long, 
twisted ..... eececsieecobanes AOS “DORK RC ar one) TSUEBRN: N75 lbs 106 (ee 
Trine 6, SESLERIEA. 
Inflorescence a spike, outer glumelles 
jagged and awned at the apex......... SESLERIA, v. 1. p. 107. 
Trips 7. AVENINEA. 
Inflorescence a racemose panicle, spike- 
Hetsrmamy THowered! t..cccesecerseoees .. PRioptA, v. 1. p. 122. 
Inflorescence a spike-like panicle, glumes 
with a feathered awn ........ neneectette . Lacurus, v. 1. p. 86. 
Inflorescence mostly a loose panicle, spike- 
lets two or three flowered. 
Glumelles truncated and jagged, awn- 
HES Sie steescnsioariesis Sdocnonedebe sockgodeeese CataBrosa, V. l. p. 96. 
Glumelles unequal, outer one two 
pointed, awn from near the base... Aira, v. 1. p. 96. 
Glumelles nearly equal, outer one two 
pointed, awn from the middle of 
HWE PACK. «. c.0cese-anectedechicaccectes.« AWENIA, . Valles emits. 
Glumelles nearly equal, outer one with 
the awn from near the apex.......... Hotcus, v. 1. p. 102. 
Glumelles nearly equal, lower florets 
with the awn from near the base 
and jointed, upper florets with the 
awn from near the apex, straight. ARRHENATHERUM, V.1p.104 
Tripe 8. FEstucinE&. 
Flowers awnless. 
Glumes unequal at the base .......... Briza, v. 1. p. 123. 
Glume equal at the base. 
Glumelles hardened on the fruit. 
Glumes two, nearly equal inlength, 
about as long as the florets ... Mexica, v. 1. p. 109. 
Glumes two, of unequal lengths, . 
much shorter than the florets. Moxtni, v. 1. p. 110. 
Glumelles not hardened on the fruit. Poa, v. 1. p. 111. 
Flowers awned. 
Spikelets with a pectinated bractea’ at 
the back......,... BP cls cetieesen, CYNOSURUSS Vii lon fle eess 
Spikelets clustered, three or four flowered. Dacrytis, v. 1. p. 144. 
Spikelets not clustered, many flowered. 
K 
