74 NATURAL ORDERS AND 
Outer glumella awned below the bifid 
BPGK scpsevvebedec sda beacdonesderene, DROMDS, ¥. "Lia Beam 
Outer glumella terminating in a point 
8D AWN Copceadecbodacdade dusuoacee Festuca, v. 1. p. 121. 
Tripe 9. HorpDEINE. 
Glumes two. 
Spikelets two or three from the same 
point, two or three flowered......... Exrymos, v. 1. p. 149. 
Spikelets single flowered, three to- 
gether, the lateral ones mostly 
HEEPOEIOEL. cocsscacanesuesnns-t- . Horpevm, v. lL. p. 150. 
Spikelets many Howered, all ferfect. 
Glumes nearly equal ......eeseeeereeee Triticum, v. 1. p. 154. 
Glumes unequal .........s0esseeee0+ee06 BRACHYPODIUM, V. 1. p. 160 
Games single ...5:0se0006s soosesorcenasesnne MUOENUM, Bs ho Ppeee 
TrisE 10, RorrBoELLINE&. 
Spikelets in two rows on one side of the 
TACHIS ira ctas spe'ne . Narpuvs, v. 1. p. 61. 
Spikelets eed altcrantely! a on ooae 
site sides of the rachis ....s..-sse+00 RotrBoE ia, v. 1. p. 165. 
Tribe 11. PanicEs. 
Spikes fingered, spikelets in two rows on 
one side of a flattened rachis ...... Dieiraria, v. 1. p. 169. 
Spikes compound, secund, spikelets on 
one side of a flattened rachis ...... Panicum, v. 1. p. 105. 
Spikes compound, cylindrical, spikelets 
surrounded by an involucre of 
DYISHLOS ..ccecccececesesescscaveevecersss DETARIA,*Viuk. eee 
TRIBE 12. CHLORIDE. 
Spikes fingered, glumes nearly equal, 
BPTOMUG cccogscctemcnareece = ee Cynopon, v. 1. p. 168. 
Spikes erect, glumes unequal, erect......... SPARTINA, Vv. 1. p. 167. 
ORDER CII. CYPERACEA.—Juss. 
Flowers glumaceous, perfect, or moneecious, consisting of single 
imbricated glumes, very rarely enclosing other glumes, but frequently 
hypogynous sete. Stamens hypogynous, generally three, rarely more 
or less numerous. Silaments capillary. Anthers fixed by their base, 
two celled. Ovary free, often surrounded at the base by the sete. 
Ovule erect. Style single, bifid or trifid. Stigmas mostly undivided. 
Fruit a crustaceous or bony nut, generally triangular, or compressed, 
one seeded, indehiscent. Albumen of the same figure as the seed, 
