THE TRIBES AND THEIR GENERA. 



59 



simple, protruding, with anthers, from apex of floret. Starch 

 grains compound. Leaves erect, rigid, subulate. 



Species. N. stricta, 50. 



Lolium. Spike symmetrical. Spikelets solitary. Terminal 

 spikelets with two empty glumes. Rachis notched, not jointed ; 

 spikelets placed singly on each notch, and pressed close into 

 the angle. Florets many. Glumes with their backs turned to 

 notches in the rachis. Outer palea 

 lanceolate, narrow, pointed, as long 

 as the glume. Lodicules ovate, 

 obtuse, swollen at base. Stamens 

 three, filaments short. Stigmas 

 two. Grain enolosed in paleae and 

 falling only when they open, ob- 

 long, convex beneath, and broad, 

 with a shallow groove above. 

 Starch grains compound. 



Species. L. perenne, 58. 



L. tetmdentum, 59. 



Lolium perenne. 

 Floret. For Spikelet see p. no 



Lepturus. 



Spike symmetrical, slender, jointed, the joints 

 breaking off with the adjoining 

 spikelet at maturity. Spikelets 

 alternate, solitary, sessile, with 

 the sides turned towards the 

 notches. Rachilla prolonged and 

 naked. Florets, one or two. 

 Glumes two, hard, thin, ribbed. 

 Two opposite empty glumes in 

 the terminal spikelet. Outer 

 palea very thin, awnless. Stamens 

 three. Stigmas two. Starch grains 

 compound. 



Lepturus incurvatus. 

 Floret, For Spikelet see p. 109. 



Species. L. incurvatus, 49. 



