l6o ALASKA GEOLOGY 



but probably in less abundance, was the species described 

 as Picea harrimani^ which is quite closely allied to the 

 P. sitchensis now living in the region. There are branches 

 which undoubtedly belong to a spruce, and a single seed 

 which in all probability also belonged to a Picea. Scat- 

 tered over many pieces of matrix are numerous short, 

 thick coniferous leaves which may well have belonged to 

 this species of Picea. The genus Pinus is more or less 

 uncertain, but is apparently represented by several de- 

 tached leaves 5 cm. or more in length, and scales that ap- 

 pear to represent a broken pine cone. Sequoia evidently 

 did not have a very prominent place in the flora, as it is 

 represented only by a single cone that is referred to S. 

 heerii of Lesquereux, and a much broken cone that may 

 or may not be of the same species. The few branchlets 

 referred to Taxodium tinajorum are hardly to be distin- 

 guished from T. distichum miocenum and may be only 

 more robust examples of the latter. 



The next most conspicuous family, in point of species 

 as well as individuals, is the Betulacese. Betula itself is 

 represented by a small but unmistakable fragment of the 

 bark which shows the well-known lenticels. The most 

 abundant dicotyledon in the collection is Corylus mac- 

 quarrii, which is represented by leaves and fragments. 

 Of the two species of Corylus described as new, C. har- 

 rimani must have been a magnificent tree, with leaves 20 

 cm. in length and 17 cm. in width. Judging simply from 

 the present collection, this was not a very abundant 

 species. The somewhat anomalous leaves described as 

 Corylus? palachei may or may not belong to this genus. 

 The remaining members of the Betulacese are two forms 

 of Alnus, one of which (A. corylifolid) is represented by 

 a considerable number of small, sharply serrate leaves. 



The Juglandaceae are represented by a single species 

 each of Juglans and Hicoria, the latter being a truly 



