Author:

Brack-Hanes,S.D.

Year:

1974

Title:

A Pennsylvanian Lepidocarp Petrifaction with Winged spores.

Reference:

Brack-Hanes,S.D. (1974) A Pennsylvanian Lepidocarp Petrifaction with Winged spores. American Journal of Botany Vol. 61 # 5 P. 13- 13

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