THEIR USE IN CORRELATION 105 



PLATE 6 



Fig. 1. — Denso-sporites sinuosus sp. nov. holotype, maceration 587 Slide 12, Battery Rock coal 

 bed, Hardin County, Illinois, dimensions are 39.9 X 46.2 microns. 



Fig. 2. — D. sinuosus sp. nov. paratype, maceration 587 Slide 6, Battery Rock coal bed, Hardin 

 County, Illinois, dimensions are 39.9 X 40.9 microns. 



Fig. 3. — D. glandulosus sp. nov. holotype, maceration 144 Slide 5, "Sub-Babylon" coal bed, 

 Fulton County, Illinois, dimensions are 27.3 X 35.7 microns. 



Fig. 4. — D. lobatus sp. nov. holotype, maceration 625-A Side 1, Willis coal bed, Gallatin Coun- 

 ty, Illinois, dimensions are 37.8 X 44.1 microns. 



Fig. 5. — D. lobatus sp. nov. paratype, maceration 625-A Slide 1, Willis coal bed, Gallatin Coun- 

 ty, Illinois, dimensions are 54.6 X 50.4 microns. 



Fig. 6. — D. ru/ius sp. nov. holotype, maceration 587 Slide 13, Battery Rock coal bed, Hardin 

 County, Illinois, dimensions are 42 X 52.5 microns. 



Fig. 7. — D. sphaerotriangularis sp. nov. holotype, maceration 520-A Slide 2, Bald Hill coal bed, 

 Williamson County, Illinois, dimensions are 48.3 X 50.4 microns. 



Fig. 8. — D. granulosus sp. nov. holotype, maceration 625-A Slide 6, Willis coal bed, Gallatin 

 County, Illinois, dimensions are 52.5 X 48.3 microns. 



Fig. 9. — D. r eynoldsbur g ensis sp. nov., tetrad showing four spores derived from spore mother 

 cell, maceration 618 Slide 20, Reynoldsburg coal bed, Johnson County, Illinois. 



Fig. 10. — D. r eynoldsbur gcnsis sp. nov. holotype, maceration 618 Slide 21, Reynoldsburg coal 

 bed, Johnson County, Illinois, dimensions are 39.9 X 44.6 microns. 



Fig. 11. — D. reynoldsburgensis sp. nov. paratype, maceration 618 Slide 19, Reynoldsburg coal 

 bed, Johnson County, Illinois, dimensions are 37.9 X 41 microns. 



