386 97. GRAMINE^. 



t Lower pale with nearly parallel veins which do not join to 

 form an awn. Awn 0. Styles terminal. 



4 Lower pale 2 — 3-fid. 



31. Triodia. F1. 2 — 4. Lower pale rather coriaceous, 

 rounded on the hack, bifid with an intermediate broad point. 

 Nut free. 



4-4 Lower pale nearly or qiute entire. 



32. KcELBRiA. Gl. unequal; upper 2 — 3-ribbed. Spikelet 

 compressed, 2 — 6-flowered. Lower pale keeled, acuminate, 

 or with a straight subterminal bristle. Nut free. 



33. Mblica. 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 hardening on 

 the free nut. 



34. MoLiNiA. Gl. unequal, without lateral ribs, fallmg short 

 of the lanceolate spikelet of 2 or 3 semicylindrical flowers 

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



35. PoA. Gl. rather unequal. Lower pale 3 — 5-; 

 membranous below, scarious at the tip, compressed, keeled. 



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

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

 cylindrical. 



37. ScLEROCHLOA. Gl. Unequal, membranous. Lower pale 

 with 5 faint veins, membranous, cylindrical below, often 

 keeled at the tip or with a very minute mucro. 



38. Briza. Gl. nearly equal, broad, 3-ribbed. Fl. 3 — 8, 

 densely imbricated in a short distichous spikelet. Lower 

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

 Gl. and pales membranous with a scarious margin. Fr. free. 

 — Lower pale with 7 — 9 faint veins. 



J^4■ Lower pale truncate and erose-denticulate. 



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

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

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

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

 wdth 2 short and faint lateral veins. 



tt Lower pale with converging veins, all or 1 — 3 of which 

 combine in the awn, 



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



