ILLUSTRATIONS TO THE FIRST VOLUME.
Reading edition
(The Author is indebted to the works of Dr. Carpenter, Rev. M. J. Berkeley, Mr.
Gosse, and Mr. Darwin, for the larger part of these Illustrations.)
FIG. PAGE
89. Eucyrtidium cranoides frontispiece
1. Form of stratified discharge in a vacuum tube 79
2. Form of stratified discharge in a vacuum tube, as affected by an electro-magnet 81
3. Development of Ulva 171
4. Vertical section of the cuticle of Iris germanica 173
5. Longitudinal section of stem of Italian reed 176
6. Palmoglœa macrococca 182
7. Protococcus pluvialis 184
8. Volvox globator 189
9. Various species of Staurastrum 192
10. Economy of Closterium Lunula 193
11. Diatoma vulgare and Grammatophora serpentina 197
12. Biddulphia pulchella 198
13. Pleurosigma angulatum 199
14. Actinocyclus undulatus 200
15. Meridion circulare 201
16. Bacillaria paradoxa 203
17. Cell multiplication in Conferva glomerata 207
18. Zoospores 208
19. Threads of Rivularia nitida 215
20. Trichodesmium erythræum 216
21. Conjugation of Zygnema quininum 217
22. Ulva latissima 225
23. Polyides rotundus and Furcellaria fastigiata 229
24. Vertical sections of conceptacles of Gracilaria armata, Grinnelia americana, and Corallina officinalis 230
25. Callithamnion corymbosum 232
26. Rhabdonia Coulteri, Sphærococcus coronopifolius, Wrangelia penicillata, and Cruoria pellita 236
27. Dictyurus purpurascens 242
28. Polyzonia cuneifolia 243
29. Fruit of various species of Ectocarpus 245
30. Dictyota dichotoma 247
31. Vertical section of receptacle of Fucus platycarpus 254
32. Various species of Pucciniæi 276
33. Puccinia Graminis 280
34. Various species of Mucedines 286
35. Torula Cerevisiæ, showing successive stages of cell-multiplication 287
36. Various species of Sphæriacei 294
37. Various species of Lichens 299
38. Sporopodium Leprieurii, Coccocarpia smaragdina, and Lecanora affinis 300
39. Paulia perforata, Calicium tympanellum, and Graphis Leprevostei 301
40. Nitella flexilis 302
41. Antheridia of Chara fragilis 314
42. Further development of antheridia of Chara fragilis 315
43. Marchantia polymorpha 317
44. Anatomy of frond of Marchantia polymorpha 318
45. Archegonia of Marchantia polymorpha 319
46. Elater and spores of Marchantia 319
47. Funaria hygrometrica 324
48. Polytrichum commune, group of antheridia 325
49. Polytrichum commune, development of spermatozoids 325
50. Microscopic structure of leaves of mosses 330
51. Development of spores of Pteris serrulata 336
52. Antheridium and spermatozoids of Pteris serrulata 338
53. Archegonium of Pteris serrulata 338
54. Section of footstalk of fern frond 341
55. Pinnule of Polypodium bearing sori 342
56. Sporangia of Polypodiaceous ferns 343
57. Pinnule of Lastrea Filix-mas with sori 346
58. Sorus and indusium of Polystichum or Aspidium 347
59. Pinna of Polystichum Lonchitis 348
60. Sorus and cup-shaped indusium of Deparia prolifera 350
61. Scolopendrium vulgare 351
62. Athyrium Filix-fœmina 353
63. Asplenium Ruta-muraria 353
64. Ceterach officinarum 355
65. Blechnum Spicant 357
66. Pteris aquilina 357
67. Adiantum Capillus-Veneris 359
68. Trichomanes radicans 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 393
78. Orchis pyramidalis, side view of flower 394
79. Orchis pyramidalis, disc with one pollinium 395
80. Orchis pyramidalis, pollinia, attached to disc 395
81. Orchis pyramidalis, pollinia, with disc contracted 395
82. Orchis pyramidalis, pollinia, withdrawn 395
83. Epipactis palustris, side views of flower 397
84. Epipactis palustris, side view and dissection of flower 398
85. Listera ovata, side view of flower 399