56 



THE TRIBES AND THEIR GENERA. 



Floret. 



Poa pratensis. 

 For Spikelet see p. 130. 



membranous. Outer palea ovate, 

 concave, lateral nerves arched, con- 

 verging above, more or less keeled, 

 compressed, rather longer than glumes, 

 membranous at margin. Lodicules 

 acute or torn, swollen at base. Sta- 

 mens three. Ovary roundish. Styles 

 two, rising at or near the apex of 

 the ovary, reflexcd, hairy. Stigmas 

 plumose. Grain oblong, pointed, 

 compressed on each side. Hilum 

 pimctiform. 



Species. P. aquatic a, 79. 

 P. fliiitans, So. 

 P. maritima, 81. 

 P. distans, 82. 

 P. procumbens, 83. 

 P rigida, 84. 

 P. loliacea, 85. 

 P. annua, S6. 

 P. compressa, 87 

 P. pratensis, 88. 

 P. trivialis, 89. 

 P. 11 em oralis, 90. 

 P. I ax a, 91. 

 P. alpina, 92. 

 P. bulbosa, 93. 



Festuca. Spikelets lanceolate, roughish. Plorets two or 

 more. Glumes erect, unequal, herbaceous, keeled. Outer palea 

 rough, chartaceous to membranous, lanceolate, rounded on the 

 back, five nerves, laterals arched and converging, pointed or 

 awned, often keeled above. Inner palea minutely ciliate. Lodi- 

 cules either two, ovate-lanceolate, acute, or one, concave, notched, 

 horizontal. Stamens three ; filaments capillary, shorter than 

 outer palea ; anthers, like stigmas, protruding when in flower 



