480 98. GRAMINEJE. 



44 Lower pale nearly or quite entire. 



32. KCELERIA. Gl. unequal ; upper 2 3-rib'bed. Spikelet 

 compressed, 2 5-flowered. Lower pale keeled, acuminate, 

 or with a straight subterminal bristle. Nut free. 



33. MELICA. Gl. nearly equal, with lateral ribs, nearly as 

 long as the ovate spikelet consisting of 1 or 2 flowers 

 rounded on the back and a clublike rudiment. Pales hard- 

 ening on the free nut. 



34. MOLIXIA. GL unequal, ivithout lateral ribs, falling short 

 of the lanceolate spikelet of 2 or 3 semicylindrical flowers 

 and a subulate rudiment. Pales hardening on the free nut. 



So. POA. Gl. rather unequal. Lower pale 3 5-veined, 

 scarious at the tip, compressed, keeled. Nut elliptic trigo- 

 nous, slightly furrowed within, free. 



36. GLYCEBIA. Gl. unequal, submembranous. Lower pale 

 with 5 7 strong prominent ribs and a scarious margin, sub- 

 cylindrical, Nut oblong, convex on back, furrowed within, 

 free. 



37. SCLEBOCHLOA. Gl. unequal, membranous. Lower pale 

 icith 5 faint veins, cylindrical below, often keeled at the tip 

 or with a very minute mucro. Nut oblong, convex on back, 

 not furrowed within, free. 



38. BBIZA. Gl. nearly equal, broad, 3-ribbed. Fl. 38, 

 densely imbricate in a short distichous spikelet. Lower 

 pale boatshaped, heartshaped, blunt, rounded on the back. 

 Gl. and pales membranous with a scarious margin. Nut 

 free. Lower pale with 7 9 faint veins. 



444 Lower pale truncate and denticulate at the tip. 



39. CATABBOSA. Gl. unequal, very short, 1-veined. Flowers 

 usually 2, rounded on the back, distant. Lower pale mem- 

 branous, with 3 veins ending in teeth which do not quite 

 extend to the edge of the scarious margin. Upper gl. oiten 

 with 2 short and faint lateral veins. 



tt Lower pale ivitli converging veins, all or 1 3 of which com- 

 bine in the awn. 



40. CYNOSUBUS. Gl. nearly equal, scarious, strongly keeled, 

 1- or more flowered. Lower pale rounded on the back with 



