DEVELOPMENT OF PALEOBOTANY IN THE ILLINOIS BASIN 53 



BIBLIOGRAPHY 



The code in parentheses at the right of the references indicates the 

 material covered in the publications cited. D = Devonian, M = Missis- 

 sippian, P = Pennsylvanian, Cr = Cretaceous , PI = Pleistocene , c = 

 compressions , b = coal balls, and s = spores and pollen. 



ABBOTT, M. L., 1954, Revision of the Paleozoic fern genus Oligocarpia : Palaeonto- (P,c,s) 

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ABBOTT, M. L., 1958, The American species of Asterophyllites , Annular ia , and Spheno - (P,c) 

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ABBOTT, M. L. , I96I, A coenopterid fern fructification from the Upper Preeport (No. (P,c,s) 

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ABBOTT, M. L., 1963, Lycopod fructifications from the Upper Preeport (No. 7) Coal in (P,c,s) 

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ABBOTT, M. L. , 1968, Lycopsid stems and roots and sphenopsid fructifications and (P,c,s) 

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 tographica Americana, v. 6, 49 p. 



AGASHE, S. N., 1964, The extraxylary tissues in certain calamites from the American (P,b) 

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AGASHE, S. N., and S. T. TILAK, I97O, Occurrence of fungal elements in the bark of (P,b) 

 arborescent calamite roots from the American Carboniferous: Torrey Bot. 

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AMERICAN JOURNAL OP SCIENCE, I87I, Burning of the State Geological rooms at Spring- 

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ANDERSON, B. R. , 1954, A study of American petrified Calamites : Missouri Bot. Gar- (P,b) 

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ANDREWS, H. N. , JR., 1940, On the stelar anatomy of the pteridosperms , with partic- (P,b) 

 ular reference to the secondary wood: Missouri Bot. Garden Annals, v. 27, 

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ANDREWS, H. N., JR., 1942a, Contributions to our knowledge of American Carboniferous (P,b) 

 floras. Part 1. Scleropteris , gen, nov. , Mesoxylon , and Amy el on : Missou- 

 ri Bot. Garden Annals, v. 29, no. 1, p. 1-18. 



ANDREWS, H. N., JR., 1942b, Contributions to our knowledge of American Carboniferous (P,b) 

 floras. Part 5. Heterangium : Missouri Bot. Garden Annals, v. 29, no. 4, 

 p. 275-316. 



ANDREWS, H. N., JR., 1943, Contributions to our knowledge of American Carboniferous (P,c,s) 

 floras. Part 6. Certain filicinean fructifications: Missouri Bot. Gar- 

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ANDREWS, H. N. , JR., 1945, Contributions to our knowledge of American Carboniferous (P,b) 

 floras. Part 7. Some pteridosperm stems from Iowa: Missouri Bot. Garden 

 Annals, v. 32, no. 3, p. 323-360. 



ANDREWS, H. N. , JR., 1946, Coal balls - A key to the past: Sci. Monthly, v. 62, no. (P,b) 

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ANDREWS, H. N. , JR., 1947, Ancient plants and the world they lived in: Comstock 

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