124 THE GENERA AND THEIR SPECIES. 



82. distans 24 in. Reflexed Meadow Grass. Outer palea 

 five-ribbed, uppermost node below mid- 

 dle of stem ; small glume reaching base 

 of second floret ; rachis rough. 



S6. annua 10 in. Annual Meadow Grass. Outer palea 



five-ribbed ; uppermost node below mid- 

 dle of stem ; small glume reaching base 

 of third floret. 



gi.laxa 12 in. Wavy Meadow Grass. Outer palea 



three-ribbed ; panicle drooping ; upper- 

 most leaf lanceolate cind flat. 



92. alpina 15 in. Alpine Meadow Grass. OuLer palea 



three-ribbed ; panicle erect ; uppermost 

 leal linear and folded. 



Florets not hairy at base 



79. aquatica 72 in. Reed Meadow Grass. Glumes without 



lateral ribs ; central rib of outer palea. 

 rough throughout ; panicle compound ; 

 spikelets less than half an inch long. 



80. jluitaus 42 in. Manna Croup. Glumes without lateral 



ribs ; central rib of outer palea rough 

 throughout ; panicle simple ; spikelets 

 more than half an inch long 



84, rigida 6 in. Hard Meadow Grass. Glumes without 



lateral ribs ; basal half of outer palea 

 smooth ; apex of inner glume reaching 

 base of third floret. 



85. loliacea 6 in. Darnel Meadow Grass. Glumes with- 



out lateral ribs ; basal half of outer palea 

 smooth ; apex of inner glume reaching 

 base of fourth floret. 



