Pennsylvanian Flora of Illinois as Revealed in Coal Balls. I

• 1 March 1934
• journal article
• Published by University of Chicago Press in Botanical Gazette
• Vol. 95  (3) , 453-476
• https://doi.org/10.1086/334401

Abstract

Keywords

• PENNSYLVANIAN FLORA
• COAL BALLS
• FLORA OF ILLINOIS
• ILLINOIS AS REVEALED
• REVEALED IN COAL