CONTENTS 



Introduction 7 



Objectives 7 



History of spore studies 7 



Preparation of coal for microscopic examination of botanical ingredients 8 



Descriptions of new genera and species 11 



Summary of generic characters 12 



Genus Punctati-sporites 14 



Genus Granulati-sporites 19 



Genus Alati-sporites 23 



Genus Reticulati-sporites 25 



Genus Laevigato-sporites 27 



Genus Denso-sporites 31 



Genus Cirratriradites 34 



Genus Endosporites 36 



Genus Triquitrites 37 



Genus Calamospora 40 



Genus Reinschospora 42 



Genus Lycospora 44 



Genus Raistrickia 45 



Genus Florinites 48 



Genus Cadiospora 50 



Genus Illinites 51 



Genus Schopfites 52 



Genus Schukospora 53 



Genus Wilsonia 54 



Location of coal samples 55 



Correlation of Illinois coal beds 61 



Casey ville group 62 



Wayside coal bed 62 



Battery Rock coal bed 62 



Reynoldsburg coal bed 63 



Conclusions 63 



Tradewater group 63 



"Sub-Babylon" coal bed 64 



Babylon coal bed 64 



Willis and Tarter coal beds 65 



Delwood and Pope Creek coal beds 66 



Rock Island (No. 1) coal bed 66 



Murphysboro coal bed 67 



Bald Hill coal bed 67 



Stonefort coal bed 68 



Davis and Wiley coal beds 68 



Dekoven and Greenbush coal beds 69 



Conclusions 69 



Carbondale group 70 



Colchester or No. 2 coal bed 70 



Summum (No. 4) coal bed 72 



Harrisburg-Springfield (No. 5) coal bed 73 



5- A coal bed 74 



Herrin and Grape Creek (No. 6) coal bed 74 



Distribution and abundance of Genera in No. 6 coal bed 76 



Conclusions 77 



McLeansboro group 78 



Jamestown coal bed 78 



Bankston coal bed 79 



Cutler coal bed 80 



Danville (No. 7) coal bed 81 



Cutler-rider coal beds 82 



1st Cutler-rider coal bed 83 



2nd Cutler-rider coal bed 83 



3rd Cutler-rider coal bed 83 



Scott ville coal bed 84 



Upper Scottville coal bed 85 



Trivoli (No. 8) coal bed 85 



Ditney coal bed ." 86 



Carlinville coal bed 87 



