42 ROYAL SOCIETY OF CANADA 



resemblance and expressed the belief that the two were identical.^ 

 In 1891 Solms-Laubach reiterated this view, but in a much more 

 cautious manner, directing attention to the near approach to the recent 

 S. sempervirens.^ More recently Zeiller has given expression to the 

 prevalent view in saying that it is to be regarded as the direct ancestor 

 of S. sempervirens of California, from which it cannot be distinguished 

 by any important characters.^ Elsewhere it has also been shown that 

 there is good reason for the belief that we now have a knowledge of 

 the wood of this species,* a belief which is greatly strengthened by 

 more recent studies of the same type of wood from other localities 

 where it has been found in a more perfect state of preservation, and 

 by the great similarity — it might almost be said by the identity — 

 which it presents to Sequoia sempervirens. 



There is, therefore, no real reason why this species should not 

 be accepted at once, as Sequoia sempervirens, and its original name 

 relegated to the position of a synonym. 



One feature of very great interest attaching to this plant, is the 

 fact now made apparent, that it at one time flourished within the 

 region of the Great Plains from which it must have been driven by 

 cauises similar to, perhaps identical with those which also drove the 

 'Douglas fir back to its present position in the mountain region. It 

 certainly flourished in the Great Plains region as late as the Lignite 

 Tertiary, and there is every reason to suppose that it may have been 

 there as late as the Glacial period. At all events, both this tree and 

 Pseudotsuga douglasii should be carefully looked for in any future 

 explorations of the later Tertiary formations. 



Sequoia buegessii, n. sp. 



Figs. 5-8. 



Eocene of the Great Valley and Porcupine Creek Groups. 



Bib. :— B. N. A. Bound. Comm., 1875, App. A, 331. Cat. Cret. and Tert. Fl. 

 30. 



Among the woods from the Great Valley studied by Sir William 

 Dawson in 1874, one specimen was designated by the name of Cupressin- 

 oxylon species (a). This was characterized by the occurrence of the 

 bordered pits in two rows, by the long resin cells and the presence 

 in the medullary rays of resin canals. It is, therefore, possible to 

 identify the present species as the one to which this description was 



' Pal. Vég., IL, 314. 



'■' Foss. Bot., 58, 1891. 



" El. de Pal., 271, 1900. 



* Cret. & Ter. Plants. Trans. R. Soc. Can., VIII., iv., 44, 68. 



