. (.1 



:'»| DAWSON ANI> PENHALLOW — PLEISTOCENE FLORA. 



11. Populue grandidentata, Michx. 



1. ill claj b, Montreal I Weston ■ 

 ( rreen'a creek nodules Stewarl i. 



12. Picea alba, Link. Bloomington, 111. (Andrews 



L3. Larix americana, Michx. Leda clays, Montreal (Weston). 

 1 I. Thuya occidentalis, L. 



Leda clays, Montreal (Sir William Dawson). 



Leda river. Manitoba (Dr. G. M. Dawson). 



.Marietta, Ohio (Newberry). 

 I"). Taxus baccata, L. 



Don river, Toronto (Townsend). 



Solsgirth, Manitoba < G. M. Dawson and Tyrrell). 



Rolling river, Manitoba (Tyrrell). 



(ape Brel Sir William Dawson). 



Bloomington, 111. (Andrews). 



16. Potamogeton perfoliatus, Ij. Green's creek, Ottawa (J. W.Dawson). 



17. Potamogeton pusillus, L. Green's creek, Ottawa (J. W. Dawson |. 



18. Potamogeton rutilans (?), Wolfgang. Green's creek nodule (Stewart). 



19. Elodea canadensis (?), Michx. Rolling river, Manitoba (Tyrrell). 



20. Vattisneria (?). Rolling river, Manitoba (Tyrrell). 



21. Carex magellanica, Lamarck. 



< ireen's creek nodules, Ottawa (Miller and Stewart). 



22. Oryzopsis asperifolia, Michx. Green's creek, Ottawa (J. W. Dawson). 

 !■'>. Bromus eiliatus (?), L. Green'.- .reek, < Ottawa (Miller i. 



24. Equisetum sylvatieum (?), L. Green's creek nodules (Stewarl I. 



1~>. Equioetum limosum (?), Ij. Green's creek nodules (Stewarl i. 



26. Equisetum tcirpoide*, Michx. Green's creek, Ottawa (J.W. Dawson). 



27. Fontinalis (?), sp. Green's creek, Ottawa (J. W. Dawson). 



28. / ■'"' " . s|>. Green's creek, Ottawa (J. W. Dawson). 

 I'.K Navicula lata. Rolling river, Manitoba. 



.'!<). Encyonema prostration. Rolling river, Manitoba. 



31. Denticula lauta. Rolling river, Manitoba. 



'.)!. Liemophora (?). Rolling river, .Manitoba. 



33. Cocconeis. Rolling river, Manitoba. 



