DESCRIPTIONS OF TRIBES AND GENERA. 67 



filially bent downwards, and together with the pedicel 

 they easily fall off. 



Species one (L. Senegalensis Kunth), from Senegambia 

 to the East Indies (Sciiide). 



43. (67) Lopholepis Decne. (HoUbcellia Wall, in Hook. 

 Misc.). Spikelets very small, resembling a bird's, head. 

 First empty glume with a basal, knob-like protuberance 

 (the head), then suddenly bending outward and like the 

 second, assuming the form of a beak. Delicate, annual 

 grasses. 



Species one (L. ornithocephala Decne.), in Hindostan. 



44. (68) Neurachne Brown. Spikes elongated or short 

 and thick. Second empty glume largest and fringed 

 within the edge. Perennials with narrow and hard leaves. 



Species three, in Australia. 



45. (69) Perotis Ait. (Xystidium Trin.). Spikelets nar- 

 row, delicate, very long-awned, standing at right angles 

 to the axis of the long, linear spikes. Leaves short and 

 broad. 



Species three, in the tropics of the Old World. 



46. (70) Leptothrium Kunth. Empty glumes two, 

 otherwise like the next. 



Species one (L. rigidum Kunth), in the warmer por- 

 tions of America. 



47. (71) Zoysia Willd. (Matretta Pers., Osterdamia 

 Neck.). Spikes slender. Spikelets closely appressed. 

 Empty glume one, compressed, keeled, coriaceous, sur- 

 rounding the flowering glume and palea. Creeping, 

 maritime grasses with rigid aiid frequently sharp-pointed 

 leaves. 



Species 2-3, in Southern and Eastern Asia, on the 

 Mascarene Isles, Australia, and New Zealand. 



48. (72) Schaffnera Benth. Spikelets not in spikes, 

 but disposed in clusters in the axils of the upper leaf- 

 sheaths. Flowering glume with a single awn. A low, 

 anomalous grass of very doubtful position. 



Species one (Sch. Mexicana Benth.), in Mexico. 



