72 



Potonie, Robert, and Kremp, G. O. W., 1955, Die 

 Sporae dispersae des Ruhrkarbons, ihre Mor- 

 phographie und Stratigraphie mit Ausblicken 

 auf Arten anderer Gebiete und Zeitabschnitte, 

 Teil I: Palaeontographica, Abt. B, Bd. 98, 136 p. 



Potonie, Robert, and Kremp, G. O. W., 1956, Die 

 Sporae dispersae des Ruhrkarbons, ihre Mor- 

 phographie und Stratigraphie mit Ausblicken 

 auf Arten anderer Gebiete und Zeitabschnitte, 

 Teil II: Palaeontographica, Abt. B, Bd. 99, p. 

 85-191. 



Reed, F. D., 1938, Notes on some plant remains 

 from the Carboniferous of Illinois: Bot. Gazette, 

 v. 100, no. 2, p. 324-335. 



Remy, Renate, 1960, Bowmanites nindeli n. sp.: 

 Deutsch. Akad. Wiss. Berlin Monatsber., Bd. 

 2, Heft 2, p. 122-124. 



Remy, Renate, 1961, Beitrage zur Flora des Au- 

 tunien III: Deutsch. Akad. Wiss. Berlin Monats- 

 ber., Bd. 3, Heft 5-6, p. 331-336. 



Remy, Renate, and Remy, Winfried, 1955, Mitteil- 

 ungen iiber Sporen, die aus inkohlten Fruktifi- 

 kationen von echten Farnen des Karbon ge- 

 wonnen wurden: Deutsch. Akad. Wiss. Berlin 

 Abh., Nr. 1, p. 41-48. 



Remy, Renate, and Remy, Winfried, 1960, Eleu- 

 therophyllum drepanophyciforme n. sp. aus dem 

 Namur A von Niederschlesien: Senck. leth., Bd. 

 41, Nr. 1/6, p. 89-100. 



Remy, Renate, and Remy, Winfried, 1961, Beitrage 

 zur Flora des Autunien II: Deutsch. Akad. Wiss. 

 Berlin Monatsber., Bd. 3, Heft 3-4, p. 213-224. 



Remy, Winfried, 1955, Untersuchungen von kohlig 

 erhaltenen fertilen und sterilen Sphenophyllen 

 und Formen unsicherer systematischer Stellung: 

 Deutsch. Akad. Wiss. Berlin Abh., Nr. 1, p. 

 1-40. 



Samoilovich, S. R., 1953, Pollen and spores from 

 the Permian deposits of the Cherdinsk and 

 Aktyubinsk areas, cis-Urals: Paleobotanischeskii 

 sbornik: Vsesoiuznyi nauchnoissledovatel'skii 

 geologo-razvedochnyi institut, Leningrad, Trudy, 

 new ser., no. 75, 56 p. [Russian; see Elias, 1961, 

 for English translation.] 



Schemel, M. P., 1951, Small spores of the Mystic 

 Coal of Iowa: Am. Midland Naturalist, v. 46, 

 no. 3, p. 743-759. 



Schopf, J. M., 1938, Spores from the Herrin (No. 6) 

 Coal bed in Illinois: Illinois Geol. Survey Rept. 

 Inv. 50, 73 p. 



Schopf, J. M., 1941, Contributions to Pennsylvanian 

 paleobotany, Mazocarpon oedipternum sp. nov. 

 and sigillarian relationships: Illinois Geol. Sur- 

 vey Rept. Inv. 75, 53 p. 



Schopf, J. M., Wilson, L. R., and Bentall, Ray, 

 1944, An annotated synopsis of Paleozoic fossil 

 spores and the definition of generic groups: 

 Illinois Geol. Survey Rept. Inv. 91, 73 p. 



Scott, D. H., 1898, On the structure of affinities of 

 fossil plants from the Paleozoic rocks. II. On 

 Spencerites, a new genus of lycopodiaceous 

 cones: Royal Soc. London Philos. Trans., ser. 

 B, v. 189, p. 83-106. 



Selling, Olaf H., 1944a, A new species of Schizaea 

 from Melanesia and some connected problems: 

 Svensk bot. tidskr., v. 38, no. 3, p. 207-225. 



Selling, Olaf H., 1944b, Studies in the recent and 

 fossil species of Schizaea, with particular refer- 

 ence to their spore characters: Goteborgs Bot. 

 Tradgard Medd., v. 16, p. 1-112. 



Sen, J., 1958, Notes on the spores of four Carboni- 

 ferous lycopods: Micropaleontology, v. 4, no. 

 2, p. 159-164. 



Seward, A. C, 1914, Antarctic fossil plants: Nat. 

 History Rept. British Antarctic Exped., 1910, 

 Geology, v. 1, no. 1, 49 p. 



Smith, S. H. V., 1957, The sequence of microspore 

 assemblages associated with the occurrence of 

 crassidurite in coal seams of Yorkshire: Geol. 

 Mag., v. 94, no. 5, p. 345-363. 



Staplin, F. L., 1960, Upper Mississippian plant 

 spores from the Golata Formation, Alberta, 

 Canada: Palaeontographica, Abt. B, Bd. 107, 

 p. 1-40. 



Sullivan, H. J., 1962, Distribution of miospores 

 through coals and shales of the Coal Measures 

 sequence exposed in Wernddu claypit, Caer- 

 philly (South Wales) : Geol. Soc. London Quart. 

 Jour., v. 118, pt. 3, p. 353-373. 



Tschudy, R. H., 1960, Vibraflute: Micropaleontol- 

 ogy, v. 6, no. 3, p. 325-326. 



Wanless, H. R., 1931, Pennsylvanian cycles in west- 

 ern Illinois: in Papers presented at the quar- 

 ter-centennial celebration of the Illinois State 

 Geological Survey: Illinois Geol. Survey Bull. 

 60, p. 179-193. 



Wanless, H. R., 1957, Geology and mineral re- 

 sources of the Beardstown, Glasford, Havana, 

 and Vermont Quadrangles: Illinois Geol. Sur- 

 vey Bull. 82, 233 p. 



White, W. A., Beavers, A. H., Wascher, H. L., 

 Wilson, G. M., and Droste, J. B., 1958, Itiner- 

 ary of field trip for fifth national clay confer- 

 ence, October 8, 1956: 5th Natl. Conf. Clays 

 and Clay Minerals Proc, Nat. Acad. Sci., Nat. 

 Research Council Pub. 566, p. 1-3. 



Wilson, G. M., 1944, The stratigraphy of the 

 McLeansboro Group of Vermilion and Edgar 

 Counties, Illinois: M. S. thesis, Univ. Illinois, 

 Urbana, 33 p. 



Wilson, L. R., 1958, Photographic illustrations of 

 fossil spore types from Iowa: Oklahoma Geology 

 Notes, v. 18, nos. 6-7, p. 99-100. 



Wilson, L. R., 1962, Permian plant microfossils 

 from the Flowerpot Formation: Oklahoma Geol. 

 Survey Circ. 49, 50 p. 



Wilson, L. R., and Coe, E. A., 1940, Description of 

 some unassigned plant microfossils from the 

 Des Moines Series of Iowa: Am. Midland Natu- 

 ralist, v. 23, no. 1, p. 182-186. 



Wilson, L. R., and Hoffmeister, W. S., 1956, Plant 

 microfossils of the Croweburg Coal: Oklahoma 

 Geol. Survey Circ. 32, 57 p. 



Wilson, L. R., and Kosanke, R. M., 1944, Seven 

 new species of unassigned plant microfossils 

 from the Des Moines Series of Iowa: Iowa Acad. 

 Sci. Proc, v. 51, p. 329-333. 



Wilson, L. R., and Venkatachala, B. S., 1963, A 

 morphologic study and emendation of Vesi- 

 caspora Schemel, 1951: Oklahoma Geology 

 Notes, v. 23, no. 6, p. 142-149. 



Winslow, M. R., 1959, Upper Mississippian and 

 Pennsylvanian megaspores and other plant mi- 

 crofossils from Illinois: Illinois Geol. Survey 

 Bull. 86, 135 p. 



Zerndt, Jan, 1930, Megasporen aus einem Floz in 

 Libiaz (Stcphanicn) : Bull. Internat. Acad. 

 Polon. Sci., ser. B (1) , p. 39-70. 



