Twenty-first Annual Meeting. 97 



27. Spabtina Schreb. 



a. Culm 3-6 (or more) feet high, leaves 2-4 feet long 94 



a. Culm 1-2 feet high, slender, leaves narrow and rush-like 95 



94. Sjjartina cyriosuroides Willd.; Cord grass, Marsh grass. 



95. S. juncea Willd.; Marsh grass, Salt grass. Rush Salt grass. 



28. Chlobis Swz. 

 a. Culm compressed, branched at base, spikes filiform 96 



96. Chloris verticillata Nutt. 



29. Gymnopogon Beauv. 

 a. Flowers on long filiform spikes crowded into a raceme 97 



97. Gymno'pogon racemosus Beauv.; Naked Beard grass. 



30. SCHEDONNAEDDS Steud. 

 a. Panicle consisting of slender, naked, triangular spikes 98 



98. Schedonnarclus Texarius Steud.; Texas Spike grass. 



31. BouTELOUA Lag. 



a. Spikes pectinate oblong or linear, solitary or few, in a raceme (6). 



a. Spikes short, in a long virgate one-sided spike or raceme 101 



6. Glumes with dark, warty glands and bristly hairs, sterile flower glabrous 99 



6. Glumes soft, hairy, pedicel of sterile flower villous-tufted 100 



99. Bouteloua hirsuta Lag.; Bristly Mesquite, Gramma grass. 



100. B. oligostachya Torr.; Mesquite grass. Gramma grass. 



101. B. racemosa Lag.; Tall Gramma grass. 



32. Eleusine Gaert. 



a. Spikes digitate, spikelets on one side of a flatfish rachis 102 



102. Eleusine Indica Gaert.; Yard grass. Crow-foot, Crab grass. Wire grass. 



33. Leptoohloa Beauv. 



a. Flowers in a long, panicled raceme, spikes slender, numerous 103 



103. Leptochloa mucronata Kth.; Feather grass. Slender grass. 



34. BuoHLOE Englm. 

 a. Dioecious, very small, pistillate flowers inconspicuous 104 



104. Buchloe dactyloides Englm.; Buffalo grass. False Mesquite grass. 



35. Mdneoa Torr. 

 a. Flowers in leafy heads or clusters; stems rigid, creeping 105 



105. Munroa squarrosa ToTT.; False Buffalo grass. 



36. Phbagmites Trin. 

 a. A very tall swamp grass, with a large terminal panicle 106 



106. Phragtnites cotnmunis Tiin.; Reed grass. 



37. Teiodia R. Br. 



a. Panicle large purplish, loose; spikelets lanceolate 107 



a. Panicle contracted, 3-5 inches long; spikelets few, ovate, turgid 108 



a. Panicle spike-like, dense, 6 in. long, k in. wide ; spikelets nearly as long as broad 109 



a. Panicle dense and ovoid or very simple and of few spikelets (6). 



b. Stems with usually a single node, panicle ovoid, 1-2 inches long 110 



6. Stems with numerous bearded joints, panicles very simple, axillary ones included Ill 



107. Triodia ciiprea Jacq.; Tall Red-Top. 



—7 



