17 



reached, though there seems to be some doubt as to the Oingko. With the exception of 

 the last which was not specifically named, and of the Plalanus which was regarded as 

 identical with leaves of the same genus found in association, these woods were held to 

 represent new species and were so named. 



Heer's results were published in 1868 (34) and again in 1880 (42), and his original list 

 may therefore be regarded as constituting the beginning of our acquaintance with this 

 ancient but wide-spread flora within the limits of Canada. It was nevertheless only shortly 

 after, and before the publication of Heer's second list, that Sir William Dawson made his first 

 determinations of Laramie plants, based upon collections made by Dr. G. M. Dawson in 1873 

 (2<») ; and from that time onward, our knowledge of this flora somewhat rapidly increased. 

 Heer's list, including woods by Schroter, is as follows : — 



1. Antholithes amissus, Heer. Fruit. 



2. Betula macrophylla, Goepp. Leaves. 



3. Garpolithes seminulum, Heer. Fruit. 



4. Corylus macquarrii, (Forbes) Heer. Leaves. 



5. Gingko sp. Wood. 

 C. Glyptostrohus ungeri, Heer. Leaves. 



7. Hedera maclurii, Heer. Leaves. 



8. Juglans acuminata, A. Br. Leaves. 



9. Larix johnseni, Schroter. Wood. 



10. Magnolia nordenskioldii, Heer. Leaves. 



11. Phyllites aceroides, Heer. Leaves. 



12. Platanus aceroides, Goepp. Wood and leaves. 



13. Popuhis arctica, Heer. Leaves. 



14. hookeri, Heer. Leaves. 



15. ricJiardsoni, Heer. Leaves. 



16. Pterospermiles spectabilis, Heer. Fruit. 



17. Quercus olajseni, Heer. Leaves. 



18. Salix raeana, Heer. Leaves. 



19. Sequoia canadensis, Schroter. Wood. 



20. langsdorfii, (Brongn). Heer. Leaves. 



21. Smilax franklini, Heer. Leaves. 



22. Tilia malmgreni, Heer. Leaves. 

 93. Viburnum nordenskioldii, Heer, Leaves. 



24. Xylomites borealis, Heer. On leaves of Pterospermites spectabilis. 



All of these plants were regarded by Heer as of Miocene age. 



In 1888, McConnell made a re- examination of the bed from which Eichardson obtained 

 his plants. He found it entirely covered with water, as was also the nine foot seam of lignite 

 mentioned by that early explorer. (28, 69; 68, 99d). He nevertheless brought away a 

 very good collection of plants which were subsequently determined and reported upon by Sir 

 William Dawson (17, 96d). The list appears below : — 



1. Callistemophyllum latum, Dn. 



2. Garpolithes sp. 



3. Leguminosites ? borealis, Dn. 



4. Nordenskioldia borealis, Heer. 

 9197—3 



