﻿j 5 6 



AMERICAN FOSSIL CYCADS. 



191. 

 192. 



193. 

 194. 



195. 

 196. 



197. 



199. 



203. 



204 



204« 



Wieland, G. R. The Yale Collection of Fossil Cy- 

 cads. Yale Scientific Monthly, vol. vi, No. 6, 

 New Haven, March, 1900, pp. 211-221, pi. i. 



A Study of Some American Fossil Cycads. 



Pt. IV. On the Microsporangiate Fructifica- 

 tion of Cycadeoidea. Am.Journ. Sci., 4th ser., 

 vol. xi, New Haven, June, 1901, pp. 423-436. 



Notes on Living Cycads. I. On the Zamias 



jf Florida. Am. Journ. Sci., 4th ser., vol. xm, 

 New Haven, May, 1902, pp. 33 I_ 338- 



On the foliage of the Jurassic Cycads of the 



genus Cycadella. Monographs of the U. S. 

 Geological Survey, vol. xlviii, pp. 198-203, pi. 



lxii, lxiii. 

 Jurassic Cycads from the Black Hills. Ibid., 



pp. 203-207. 



Notes on the Stratigraphy and Paleontology 



of the Black Hills Rim. Ibid., pp. 3 I 7~3 2 5. 

 pi. lxxiii [figure 15]. 



Cycads. Encyclopedia Americana, vol. v, 



New York, 1903. 



Polar Climate in Time the Major Factor in 



the Evolution of Plants and Animals. Am. 

 Journ. Sci., 4th ser., vol. XVI, New Haven, De- 

 cember, 1903, pp. 401-430. 



The Proembryo of the Bennettiteae. Am. 



Journ. Sci., 4th ser., vol. xvui, New Haven, 

 December, 1904, pp. 445-447, pi. xx. 



Williamson, W. C. On the Distribution of Fossil 

 Remains on the Yorkshire Coast, from the 

 Lower Lias to the Bath Oolite inclusive. Trans. 

 Geol. Soc. London, 2d ser., vol. v, London, 



1837. PP- 223- 2 42- 



On the Scaly heads or collars from Runswick 



Bay, supposed to belong to Zamia gigas. Proc. 

 Yorkshire Phil. Soc, Part I, vol. 1, London, 



1849, pp. 45-51- 



Contributions towards the History of Zamia 



gigas Lindl. & Hutton. Trans. Linn. Soc. 

 London, vol. xxvi, London, 1S70, pp. 663-674, 

 pi. Hi, liii. 



On the Organisation of the Fossil Plants of 



the Coal Measures. Pt. XIV. The True Fruc- 

 tification of Calamites. Phil. Trans. Roy. Soc. 

 London, vol. clxxix, London, 1888, pp. 47- 



57, pi. viii-xi. 



and Scott, D. H. Further Observations on 



the Organization of the Fossil Plants of the 

 Coal Measures. Pt. III. Lyginodendron and 

 Heterangium. Phil. Trans. Roy. Soc. London, 

 vol. clxxxvi (1895) B, London, 1895, pp. 703- 

 779, pi. xviii-xxix. 



Williston, M. W. The Hallopus, Baptanodon, 

 and Atlantosaurus Beds of Marsh. Journal of 

 Geology, vol. xm, No. 4, Chicago, May-June, 

 1905, pp. 339-35°- 



205. 



206. 



207. 



208. 



209. 



213- 



214, 

 215. 



216. 

 217. 



218. 



219. 



Worsdell, W. C. The Anatomy of the Stem of 

 Macrozamia compared with that of other Gen- 

 era of Cycadeae. Annals of Botany, vol. x, 

 No. 40, London, December, 1896, pp. 601-620, 

 pi. xxvii, xxviii. 



— On Transfusion Tissue. Its origin and func- 

 tion in the leaves of Gymnospermous plants. 

 Trans. Linn. Soc. London, 2d ser., Bot.,vol. v, 

 Pt. VIII, London, December, 1897, pp. 301- 

 319, pi. xxiii-xxvi. 



The Vascular Structure of the Sporophylls of 



Cycadaceae. Annals of Botany, vol. XII, No. 

 46, London, June, 1898, pp. 203-241, pi. xvii, 

 xviii. 



The Comparative Anatomy of certain Genera 



of the Cycadaceae. Jour. Linn. Soc. London, 

 Botany, vol. xxxm, London, July 1, 1898, pp. 



437-457- Pi- "X. 



Observations on the Vascular System of the 



Female Flowers of Coniferse. Annals of Botany, 

 vol. xm, No. 52, London, December, 1899, 

 pp. 527-548, pi. xxvii. 



The Structure of the Female Flower in 



Coniferse. An Historical Study. Annals of 

 Botany, vol. xiv, No. 53, London, March, 1900, 

 pp. 39-82. 



The Anatomical Structure of Bowenia spec- 



tabilis Hook. Annals of Botany, vol. xiv, No. 



53, London, March, 1900, pp. 159-160. 



The Vascular Structure of the Ovule of Ce- 



phalotaxus. Annals of Botany, vol. xiv, No. 



54, London, June, 1900, pp. 317-318. 



The Affinities of the Mesozoic Fossil, Ben- 



nettites Gibsonianus, Carr. Annals of Botany, 

 vol. xiv, No. 56, London, December, 1900, pp. 

 717-721. 



Zeiller, R., et Renault, B. See No. 120. 

 Zeiller, R. Paleontologie vegetale. (Ouvrages 



publics en 1892.) Annuaire geolog. univ., vol. 



ix, Annee 1892, Paris, 1893-94, PP- 111-116, 



935-975- 



Elements de Paleobotanique. Paris, 1900. 



Revue des Travaux de Paleontologie Vegetale, 



publies dans le cours des annees 1897- 1900. 

 Revue Generale de Botanique, vol. xiv, 1902, 

 pp. 427-435 ; 487-496 ; 539-543 : vol. xv, 1903, 

 pp. 39-4S; 83-89; 125-139; 186-192; 235-240; 

 328-336 ; 393-400 ; 470-480. 



Zeiller, R., et Fliche, P. Decouverte de Stro- 

 biles de Sequoia et de Pin dans le Portlandien 

 des environs de Boulogne-sur-Mer. Comptes 

 rendus des seances de l'Acad. Sci., vol. cxxxvn, 

 14 decembre 1903, pp. 1020-1022. 



Zigno, A. Flora fossilis formationis Oolithicne. 

 vol. 11, Padova, 1873-1885. 



