256 



INDEX 



Stauropteris sporangium, 

 *146 



Tillandsia usneoides, 31 

 Todea, 140 

 Tracheides, 49 



Taxodium distichum, 201 

 Teleology, 13 



Tertiary formation, 21, 38 

 Thallus, 225 



and stem, 226 



theory, 225-228 

 Thamnopteris, 142 

 Thiselton-Dyer, Sir W. T., 13 

 Thistle, 47 



Youatt, 11 



Zalesskya, 142 

 Zalesskya gracilis, 142 

 Zamia, 59, 80, 129 

 Zamia gigas, 91 

 Zamia leaf, 61 

 Zamia spermatozoids, *72 

 Zamia stamens, 65 

 Zostera, 36 



