Part III. THE LARAMIE FLORA. 



BIBLIOGRAPHY OF PAPERS RELATING TO THE 

 LARAMIE FLORA IN THE DENVER BASIN. 



1868. 



Lesquereux, Leo, in Le Conte, J. L., Notes on the geology 

 of the survey for the extension of the Union Pacific 

 Railway, E. D., from the Smoky Hill River, Kansas, 

 to the Rio Grande, pp. 47-53, Philadelphia, 1868. 



Lesquereux, Leo, [Notes on fossil plants from lignite de- 

 posits of the West]: Am. Jour. Sci., 2d ser., vol. 45, 

 pp. 198-204, 1868; copied without change in Hayden, 

 F. V., U. S. Geol. and Geog. Survey Terr. [Third] Ann. 

 Rept., p. 96, 1869; reprint, p. 196, 1873. 



1873. 



Lesquereux, Leo, Lignitic formation and fossil flora: U. S. 

 Geol. and Geog. Survey Terr. Ann. Rept. for 1872, 

 pp. 317-427, 1873. [See pp. 382-384 for description 

 of plants from Marshall and Erie.] 



1878. 



Lesquereux, Leo, The Tertiary flora: U. S. Geol. Survey 

 Terr. Rept., vol. 7, pp. 1-366, pis. 1-45, 1878. 



Lesquereux, Leo, Catalogue of the Cretaceous and Tertiary 

 plants of North America, with references to their, de- 

 scriptions: U. S.Geol. and Geog. Surve*y Terr. Ann. 

 Rept. for 1876, pp. 487-520, 1878. 



1883. 



Lesquereux, Leo, The Cretaceous and Tertiary floras: 



U. S. Geol. Survey Terr. Rept., vol. 8, pp. 109-126, 



1883. 



1886. 



Ward, L. F., Synopsis of the flora of the Laramie group: 

 IT. S. Geol. Survey. Sixth Ann. .Rept., for 1884-85, 

 pp. 399-557, pis. 31-65, 1886. 



1887. 



Ward, L. F., Types of the Laramie flora: U. S. Geol. Sur- 

 vey Bull. 37, pp. 1-354, pis. 1-57, 1887. 



1896. 



Knowlton, F. H., in Emmons, S. F., Cross, Whitman, and 

 Eldridge, G. H., Geology of the Denver Basin in Col- 

 orado: U. S. Geol. Survey Mon. 27, pp. 466-473, 1896. 



1898. 



Knowlton, F. H., Catalogue of the Cretaceous and Tertiary 

 plants of North America: U. S. Geol. Survey Bull. 152, 

 pp. 1-247, 1898. 



1909. 



Cockerell, T. D. A., Amber in the Laramie Cretaceous: 

 Torreya, vol. 9, pp. 140-143, 1909. 



1915. 



Knowlton, F. H., in Richardson, G. B., U. S. Geol. Sur- 

 vey Geol. Atlas, Castle Rock folio (No. 198), p.7, 1915. 



1919. 



Knowlton, F. H., A catalogue of the Mesozoic and Ceno- 

 zoic plants of North America: U. S. Geol. Survey 

 Bull. 696, 815 pp., 1919. 



LOCAL DISTRIBUTION OF THE FLORA. 



Before proceeding- to the discussion of the 

 geologic, biologic, and ecologic relations of the 

 Laramie flora comprised in the 1 present work, 

 it may be of some interest to enumerate the 

 several localities together with the forms found 

 at each place. The first Laramie plants made 

 known to science were named and described 

 by Leo Lesquereux. 2 They are given in the 

 first of the following lists. 



Marshall's mine, Marshall, Boulder County, Colo.: 



Lygodium compactum Lesquereux. 



Juglans rugosa Lesquereux. 



Quercus chlorophylla Unger. 



Quercus lyelli Heer. 



Cinnamomum affine Lesquereux. 



Acer, fruit of. , 



Acer, leaves of. 



Rhamnus salicifolius Lesquereux. 



Corntis incompletus Lesquereux. 



Echitonium sophiae. 



PhyHites sulcatum Lesquereux. 

 Marshall's mine, Marshall, Colo.; collected by N. L. 

 Britton for J. S. Newberry, about 1884: 



Sequoia acuminata? Lesquereux. 



Carpites marshallensis Knowlton, n. sp. 



Juglans praerugosa Knowlton, n. sp. 



Ficus coloradensis Cockerell. 



Ficus navicularis Cockerell. 



Ficus planicostata Lesquereux. 



Cinnamomum affine Lesquereux. 



Aristolochia brittoni Knowlton, n. sp. 



Dombeyopsis ovata Knowlton, n. sp. 



PhyHites marshallensis Knowlton, n. sp. 

 Railway cut between old and new stations, Marshall, 

 Colo.; collected by A. C. Peale, 1908: 



Hicoria angulata Knowlton, n. sp. 



Hicoria minutula Knowlton, n. sp. 



Ficus impressa Knowlton, n. sp. 



Rhamnus salicifolius Lesquereux. 



Zizyphus minimus Knowlton, n. sp. 



Mimosites marshallensis Knowlton, n. sp. 



Dombeyopsis obtusa Lesquereux. 

 Dump of old Marshall mine, Marshall, Colo.; collected 

 by A. C. Peale, 1908: 



Ficus impressa? Knowlton. 



• [Notes on fossil plants from Rock Creek, etc.|: Am. Jour. Sci., 2d 

 ser., vol. 46, p. 208, 1868; copied in Hayden, F. V., XJ. S. Geol. Survey 

 Terr. [Third] Ann. Rept., p. 96, 1869 [reprint, p. 196, 1873.] 



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