II. NOTES ON THE PLEISTOCENE PLANTS. BY D. P. 



PEN HALLOW. 



The Pleistoceue plants submitted to the author by Sir William Dawson 

 and described in this paper, are chiefly from collections made by Dr. G. M. 

 Dawson and Mr. J. B. Tyrrell, of the Geological Survey of Canada, and by 

 Mr. J. Townsend, with specimens from different localities in the collections 

 of Sir William Dawson, now in the Peter Redpath Museum of McGill Uni- 

 versity. A few are donations from Messrs. Worthen and Andrews from 

 localities in the United States. These latter will be but briefly referred to, 

 as the precise formation in which they occurred is not wholly free from 

 doubt. Some of the material is of recent collection and until now unde- 

 scribed. Other specimens were collected at least twenty years ago, and 

 have already been more or less fully described* by Sir William Dawson. 

 These I have submitted to examination for the purpose of verification, and 

 now present in the following statement. 



Annotated List of Canadian Plants. 

 taxus baccata, l. 



The material representing this species was embraced in several slides, 

 which I have designated by the numbers 1, 2, and 3, and by specimens of 

 wood, which have also been numbered as follows : 



No. 1. A section taken from a specimen from the Don river, Toronto. 

 The structure is fairly well preserved, and shows the characteristic structure 

 of Taxus. 



No. 2. A longitudinal section of a specimen from Solsgirth, Manitoba, 

 taken from the bowlder clay of a well at a depth of 135 feet.f The struc- 

 ture is well preserved, and the taxine characters of the wood are more clearly 

 recognizable than in the preceding. 



No. 3. Transverse section of a specimen also from Solsgirth, Manitoba. 

 The section is cut diagonally, but as the structure is well preserved the char- 

 acters are recognizable. 



No. 4. A fragment of wood about one and one-half inches square, much 

 compressed, and evidently the nodal portion of a small stem or branch. It 

 was collected in 1887 by Mr. Tyrrell from the till formation of the Sols- 

 girth well. It is readily softened in hot potash, but the whole structure is 

 badly decayed and much distorted by compression. It everywhere shows 

 coniferous markings, and where more fully preserved the structure of Taxus 

 is plainly seen. 



c-.in. Nat., Vol. II. 1857. p. 522; ibid., New Ser., Vol. Ill, L870, p. 69; ibid., Vol. VI, 1871, p. K>3. 

 t Trans. Roy. Soc. Can., Vol. IV, I't. IV, 1886, p. 92. 



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