770 



58. C. Grahami. 59. C. saxatilis. 60. C. Goodenovii. 61. C. 

 rigida. 62. C.ccespitosa. 63. C.trinervis. 64. C aquatilis. 

 65. C. acuta. 66. C. Moenchiana. 

 G. Male spike single, female one or more ; stigmas 3. 



1. AU or the greater part of the spikes at the apex of the culm, ap- 

 proximate, subsessile ; beak of the fruit not complanate or bifid. 



67. C.supina. 68. C. platystachya. 69. C. macrolepis. 70. C. 

 gynobasis. 71. C. Grioletti. 72. C. tomentosa. 73. C. pr(Bcox. 

 74. C. mollis. 75. C. reflexa. 76. C. umbrosa. 77. C. pilu- 

 lifera. 78. C. montana. 79. C. ericetorum. 



2. All or the gi-eater part of the spikes at the apex of the culm, ap- 

 proximate, subcorymbose, females pedunculated, nearly equal to 

 the male ; fruit smooth, with a small membranaceous beak or 

 none. 



80. C rarijlora. 81. C liniosa. 82. C. irrigua. 83. C. pal- 

 lescens. 84. C. ustulata. 85. C. capillaris. 86. C. nitida. 

 87. C. alba. 



3. Characters as in G. 2 ; but with pubescent fruit. 

 88. C. digitata. 89. C. ornithopoda. 



4. Spikes cylindrical, veiy dense, coiymbose ; beak of the fruit stout, 

 deeply bifid. 



90. C. psendo-cyperus. 



5. Spikes at the apex of the culm, racemose, the uppermost sessile, 

 the rest pedimculated, peduncles exserted ; beak of the fruit biden- 

 tate with a scabrous margin. 



91. C. fuliginosa. 92. C. frigida. 



6. Greater part of the spikes at the apex of the culm sessile, or shortly 

 pedunculated, peduncles included ; fruit smooth except at the 

 margin, beak complanate, bifid. 



93. C. extensa. 94. C.Jlava. 95. C. Mairii. 96. C. (Ederi. 



7. Spikes racemose descending down the culm, upper ones sessile or 

 shortly pedunculated, peduncles included, lower ones pedunculated, 

 peduncles somewhat exserted ; beak of the fruit complanate 

 bidentate. 



97. C. Hostiana. 98. C.fulva. 99. C. Hornschuchiana. 100. 

 C. hinervis. 101. C. Icevigata. 102. C. distans. 103. C. 

 punctata. 104. C. Michehi. 105. C. brevicoUis. 106. C. 

 depauperata. 107. C. sylvatica. 108. C. tenuis. 



8. Characters as in G. 7 ; but the beak of the fruit doubtful. 



109. C. ferruginea. 110. C. geniculata. 111. C. brevifolia. 



