REFERENCES 



63 



, 1933, The structure of certain fossil 



spore-bearing organs believed to belong to 

 pteridosperms : Kungl. Svenska Vetenkap- 

 sakad. Handl., ser. 3, vol. 12, no. 6, 103 pp. 



Harris, T. M., 1935, The fossil flora of Scoresby 

 Sound East Greenland, Pt. 4 : Meddelelser 

 om Gronland, vol. 112, no. 1, pp. 154-167. 



, 1940, Caytonia : Annals of Botany, n.s. 



vol. 4, no. 16, pp. 713-734. 



1941, Caytonanthus, the microsporo- 



phyll of Caytonia: Annals of Botany, n.s., 

 vol. 5, no. 17, pp. 47-58. 



Hartung, W., 1933, Die Sporenverhaltnisse der 

 Calamariaceen : Inst. Palaobot. u. Petrog. 

 der Brennsteine Arb., vol. 3, no. 3, pp. 95- 

 149. 



Hoskins, J. H. and Cross, A. T., 1941, A con- 

 sideration of the structure of Lepidocarpon 

 Scott based on a new Strobilus from Iowa : 

 Am. Midland Naturalist, vol. 25, no. 3, pp. 

 523-547. 



Ibrahim, Ahmet Can, 1932, _ Beschreibung von 

 Sporenf ormen aus Floz Agir ; in Potonie, R. 

 Sporenformen aus den Flozen Agir und Bis- 

 marck des Ruhrgebietes : Neues Jahrb., 

 Beilage-Band 67, Abt. B, pp. 447-449. 



-, 1933, Sporenformen des Aegirhorizonts 



des Ruhr-Reviers : Dissertation, Berlin ; pri- 

 vately pub. 1933, by Konrad Triltsch, Wurz- 

 burg, 47 pp. 



Johnson, H. A. and Thomas, B. W., 1884, Re- 

 port of the committee on the microscopic or- 

 ganisms in the bowlder clays of Chicago 

 and vicinity : Chicago Acad. Sci. Bull., vol. 

 1, no. 4, pp. 35-40. 



Jongmans, W. J., 1930, Fossilium Catalogus II : 

 Plantae, Pars 16, Lycopodiales III (incl. 

 Hydropterideae, Psilophytales, Spheno- 

 phyllales) : pp. 622-623. 



Kendall, Mable, 1942, Jurassic megaspores from 

 the Gristhorpe plant bed : Annals and Mag. 

 Nat. History, ser. 11, vol. 9, pp. 920-923. 



Kidston, Robert, 1890, Fossil flora of the Staf- 

 fordshire coal fields : Roy. Soc. Edinburgh 

 Trans., vol. 2,6, pp. 93-94. 



, 1906, On the microsporangia of the 



Pteridospermeae, with remarks on their re- 

 lationship to existing groups : Royal Soc. 

 London Philos. Trans., B, vol. 198, pp. 413- 

 446. 



and Lang, W. H., 1935, On the presence 



of tetrads of resistant spores in the tissue 

 of Sporocarpon furcahim Dawson from the 

 Upper Devonian of America : Royal Soc. 

 Edinburgh Trans., vol. 53, no. 3, pp. 597-602. 



Knox, E. M., 1938, The spores of Pteridophyta, 

 with observations on microspores in coals of 

 Carboniferous age : Bot. Soc. Edinburgh 

 Trans, and Proc, vol. 32, no. 3, pp. 438-466. 



— , 1939, The spores of Bryophyta compared 

 with those of Carboniferous age : Bot. Soc. 

 Edinburgh Trans, and Proc, vol. 32, no. 4, 

 pp. 477-487. 



1942, The microspores in some coals of 



the productive Coal Measures in Fife : Inst. 

 Min. Eng. Trans., London, vol. 10, no. 4, 

 pp. 98-112. 



Kosanke, R. M., 1943, The characteristic plant 

 microfossils of the Pittsburgh and Pomeroy 

 coals of Ohio: Am. Midland Naturalist, 

 vol. 29, no. 1, pp. 119-132. 



Kubart, B., 1910, Untersuchungen iiber die Flora 

 des Ostrau-Karwiner Kohlenbeckens. I. 

 Die Spore von Spencerites memhranaceus 

 n. sp. : Denksch. d. K. Akad. Wiss., Wien., 

 vol. 85, pp. 83-90. 



Lang, W. H., 1925, Contributions to the study of 

 the Old Red Sandstone flora of Scotland : 

 Roy. Soc. Edinburgh Trans., vol. 54, no. 

 2, pp. 253-280. 



Loose, Friederich, 1932, Beschreibung von Spo- 

 renformen aus Floz Bismarck ; in Potonie, 

 R., Sporenformen aus den Flozen Agir und 

 Bismarck des Ruhrgebietes : Neues Jahrb,, 

 Beilage-Band 67, Abt. B, pp. 449-452. 



-, 1934, Sporenformen aus dem Floz Bis- 

 marck des Ruhrgebietes : Inst. Palaobot. u. 

 Petrog. d. Brennsteine Arb., vol. 4, no. 3, 

 pp. 127-164. 



Luber, A. A., 1937, Methods for correlating the 

 coal seams of the Paleozoic basins according 

 to spores : XVII International Geological 

 Congress, Abstracts of papers U.S.S.R., 

 1937 (Chief Editorial Office of the minin|- 

 fuel and Geological-Prospecting literature, 

 Moscow and Leningrad), p. 61. 



, 1938, Spores and pollen from coals of 



the Permian of U.S.S.R. (In Russian, Eng- 

 lish summary) : Problems of Soviet Geol- 

 ogy, vol. 8, no. 2, pp. 152-160. 



-, 1939, The correlation by means of spores 



of coal bearing Upper Paleozoic deposits of 

 the Kuznetsk and Minussinsk basins (in 

 Russian, English summary) : Bulletin Acad, 

 sci. U.S.S.R., (Akademia Nauk Otdelenie 

 Matematicheskikh I Estesvennykh Nauk. 

 Izvestiia) Serie 7-A, part 2, 1939, no. 6, 

 pp. 88-104. 



Liick, Hugo, 1913, Beitrag zur Kenntnis des 

 alteren Salzgebirges im Berlepsch — Berg- 

 werk bei Stassfurt nebst Bemerkungen fiber 

 die pollenf iihrung des Salztones : Disserta- 

 tion, privately printed, Leipzig, ZZ pp. 



Maslankiewiczowa, Zofja Kowalewska, 1932, 

 Megasporen aus dem Flotz "Elzbieta" in 

 Sierze (in Polish, German summary) : Acta 

 Soc. Bot. Poloniae, vol. 9 (suppl.), pp. 

 155-174. 



McCabe, Louis C, 1931, Some plant structures 

 of coal : Illinois Acad. Sci. Trans. 24, no. 

 2. pp. 321-326. 



