CLASSIFICATION. 97 



glumes nearly equal ; flowering glume with three nearly- 

 equal teeth at the top. Species 1 : — decumbens. 



Genus 40. Kceleria. Spikelets few-flowered, dis- 

 posed in dense clusters, nearly sessile; panicle spike- 

 like ; outer glumes keeled, pointed, and scale-like at the 

 edges. Species 1 : — cristata. 



Genus 41. Sesleria. Inflorescence spike-like, cylin- 

 drical ; spikelets few-flowered ; outer glumes nearly 

 equal, ovate-lanceolate, concave, acute ; flowering glumes 

 erect, acute, nearly equal, toothed at the top ; palea 

 folded, two-ribbed, cloven ; filaments hair-like, long ; 

 anthers pendulous, oblong; ovary ovate; styles two, 

 varying in length, sometimes combined; stigmas long, 

 cylindrical, feathery ; seed ovate, smooth. Species 1 : — 

 ccerulea. 



Genus 42. Arundo. Inflorescence panicled; spike- 

 lets several-flowered ; outer glume unequal, oblong, 

 pointed ; flowering glumes as long as the outer ones ; 

 palea the same length ; from the base of the floret arise 

 a number of long hairs. Species 1 : — phragmites. 



H 



