CLASSIFICATION. 89 



one ; anthers linear, pendulous, notched at both ends ; 

 ovary present only in the central floret, small, ovate ; 

 styles short, near together ; stigmas long, linear, downy ; 

 seed ovate, pointed, small, not attached to the flowering 

 glume. Species 1 : — borealis. 



Genus 5. Anthoxanthum. Outer glumes two, un- 

 equal, one-flowered, the next two glumes empty and 

 narrower, awned, the awns of different lengths, one 

 arising from the back of the one glume, the other from 

 the base of the opposite one ; palea like a scale ; sta- 

 mens two ; seed pointed at both ends, the flowering 

 glume adhering to it. Species 1 : — odoratum. 



Genus 6. Phalaris. Spikelets containing one floret ; 

 outer glumes two, nearly equal, boat-like, the keel 

 winged, the two pressed closely together ; flowering 

 glumes smaller, concealed within the closed outer 

 glumes, lanceolate, acute ; palea oblong, concave, acute ; 

 scales lanceolate, pellucid, pointed, tumid at the base ; 

 stamens three, filaments capillary, anthers oblong, 

 notched at each end ; styles two, slender ; stigmas hairy ; 

 ovary ovate. Species 1 : — canariensis. 



Genus 7. Digraphis. Scales or rudimentary glumes 

 at base of florets minute, narrow, hairy : outer glumes 

 keeled, but the keels not winged ; panicle branched, 

 somewhat spreading. Species 1 ; — arundinacea. 



Genus 8. Phleum. Panicle spike-like ; spikelets 

 one-flowered; outer glumes oblong, linear-lanceolate, 

 compressed, nearly equal, pointed or awned ; flowering 

 glume and palea shorter, and concealed within the outer 

 glumes, awnless, and very thin ; sometimes there is a 

 minute awn on the back of the flowering glume, or a 

 bristle at the base of the palea ; ovary roundish ; fila- 

 ments capillary, longer than the glumes, anthers oblong; 



