656 



INDEX 



thallose Jnngermanniacese, 114 

 thallose Juiigermanniales, 159 

 thallose Liverworts, 226 

 thallus, 



branching, 123 

 Dendroceros, 146 

 dichotomy (Anthoceros), 145 

 Marchantiacese, 46 

 Marchantiales, 

 mucilage, 123 

 Notothylas, 149 

 Riccia, 24, 25, 28 

 structure (Anthoceros), 128 

 theca, 211, 213 

 Thuidium, 161, 194 

 Thyrsopteris elegans ; Fig. 229 

 Tmesipteris, 485, 504, 507, 509, 587 



tannensis ; Fig. 293, 294 

 Todea, 346, 349, 359, 362, 364 

 africana, 309 

 barbara. 362, 363 

 Hymenophylloides ; Fig. 207 

 trabeculae, 526, 558, 559 

 tracheary tissue, 222, 263, 285, 361, 



472, 496 

 tracheids, 325, 338 



prothallium of Botrychium, 243 

 scalariform, 330 

 transpiration 



Marchantiaceae, 69 

 traps 



leaves (Acrogynse), 117 

 tree-fern, 335, 390 

 tree-ferns (Psaronius), 581 

 Treubia, loi, 158 

 gemmse, 100 

 insignis, ico 

 triarch bundles, 268 

 Triassic, 582, 583, 586 

 Trichomanes, 306, 339, 349, 2>7?>, 2,7^, 

 Z77, 380, 383. 580, 597 



gametophyte, 374 

 alatum, 374 

 brachypus, 381 

 cyrtotheca ; Figs. 219, 221 

 Draytonianum ; Fig. 214 

 Hookeri, 381 

 labiatum, 380 

 Motleyi, 380 



muscoides, 380 

 parvulum, 380; Fig. 219 

 pyxidiferum, 374, 381 

 radicans, 379, 380, 381 

 reniforme, 380 

 rigidum; Fig. 218 

 venosum, 379; Fig. 220 ' 

 Trochopteris elegans, 384 

 tubers, 69, 131, 145, 433, 565 

 Equisetum, 459 

 Geothallus, 83 

 Marsilia, 434 

 urn, 211 



Urnatopteris, 583 



vaginula, 180 

 vallecular canals, 464 

 vascular bundle, 122, 249, 307, 325, 

 462, 464, 526, 528, 549, 552, 556 



Botrychium, 261, 265 



collateral, 262 



embryo, 492 



Hymenophyllace^, 380 



leaf, 252, 357 



Ophioglossum, 245, 247, 250 



Psilotaceae, 507 



root, 287, 471 



stem, 285, 326, 369, 496 



stem (Botrychium), 244 



stem development, 327 



stem (Marsilia), 433 



stem (Polypodiacese), 330 

 Vascular Cryptogams, 231 

 vascular gaps, 465 

 vascular plants, 122, 165, 222 

 vascular system, 



Angiopteris, 290 

 vascular tissues, 231 

 Vaucheria, 562, 564 

 veins, 



development, 333 



pseudo-, 381 



structure. 334 

 velum, 537, 558, 604 

 venation, 



cotyledon, 326 



ferns, 580 



Pecopteris type, 580 



