312 



75. Glumes of similar consistence, the outer 



ones shortei- and unequal ; panicle 

 narrow 



Panicle spreading 



76. Glumes keeled or boatshaped ... 

 Glumes convex, cup-shaped ... 



77. Spikelets 3^5 inch 



Spikelets ^g-i^j inch 



78. Flowering glumes 1-3-nerved... 



Flowering glumes 5-7-nerved 



79. Spikelets awnless 

 Spikelets awned 



80. Spikelets in 1 or 2 rows along one side 



of the spike-like branches of a 

 simple panicle 

 Spikelets sessile, irregularly clustered on 

 solitary simple branched panicles... 



81. Spikes digitate ... 



Spikes alternate or clustered in a long 

 panicle 



82. Spikelets awnless or with short points 

 Awns longer than glumes 



83. Spikelets very flat, closely imbricate ; 



glumes shortly pointed 



Spikelets narrow ; glumes obtuse 



84. Leaves narrow 



Leaves 1 inch or more broad ... 



85. Herb with small flat spikelets... 



Tall shrubby or tree-like bamboo 



86. Leaves tessellated with transverse veins 

 Leaves without conspicuous transverse 



veins 



87. Culm cylindric ... 



Culm grooved on one side 



88. Leaves more than 1 inch broad 

 Leaves under 1 inch in breadth 



89. Leaves more than 1 inch broad 

 Leaves under 1 inch broad 



90. Leaves acuminate at base 



Leaves truncate or subcordate at base 



91. Thorny bamboo . . 



Unarmed 



54. Coelachne (p. 



326). 

 76. 

 77. 

 4. Isacline (p. 313). 

 19. Sphaerocaryum 



(p. 317). 

 53. Eriachne{^. 326). 

 65. Eragrostis (p. 

 328). 

 79. 



68. Briza (p. 329). 



69. Bromus (p. 330). 



81. 



85. 

 82. 



84. 

 83. 



58. Chloris (p. 327). 



60. Dactyloctenium. 



(p. 328). 



59. Eleusine (p. 327). 



61. Leptochloa (p. 



327). 

 66. Centotheca (p. 



329). 



65. Eragrostis (p. 



328). 



83. 



87. 



89. 

 88. 



71. Phyllostachys (p. 



330). 



72. 5am67wa(p.331). 

 70. Arundinaria p. 



330). 



• 90. 



91. 



73. Dendrocalamus 



(p. 331). 

 72. Bambusa{p.S3l). 

 72. Bambvsa{T^.3U). 

 92. 



