THE FIRST VOLUME. 



FIG. 



64. Ceterach officinarum . . , . . 355 



65. Blechnum Spicant . 357 



66. Pteris aquilina . . . . , , . 357 



67. Adiantum Capillus-Veneris , . . . 359 



68. Tricho manes radieans . . . ' . . .361 



69. Hymenophyllum tunbridgense . . . . . 362 



70. Equisetum giganteum . . . . . 368 



71. Pilularia minuta . . . .'"'., . . 371 



72. Orchis mascula, side view of flower . . . 389 



73. Orchis mascula, front view of flower - . ' . . . 390 



74. Orchis mascula, pollinium . . , .. . . . 391 



75. Orchis mascula, pollen grains ' *. '" .'- . . . 391 



76. Orchis mascula, pollinia . . . . . . . 392 



77. Orchis pyramidalis, front view of flower . -:; T 393 



78. Orchis pyramidalis, side view of flower . r . . . 394 



79. Orchis pyramidalis, disc with one pollinium "\ -- '.' . 395 



80. Orchis pyramidalis, pollinia, attached to disc . . t , . 395 



81. Orchis pyramidalis, pollinia, with disc contracted . . 395 



82. Orchis pyramidalis, pollinia, withdrawn . - '. . .395 



83. Epipactis palustris, side views 6f flower . , ; . . 397 



84. Epipactis palustris, side view and dissection of flower . . 398 



85. Listera ovata, side view of flower ..... 399 



