The morphology of gymnosperms the structure and evolution of primitive seed-plants [by] K. R. Sporne
https://siris-libraries.si.edu/ipac20/ipac.jsp?&profile=liball&source=~!silibraries&uri=full=3100001~!15385~!0#focus ...
Reprint of the 1935 ed. published by The University of Chicago Press, Chicago. https://siris-libraries.si.edu/ipac20/ipac.jsp?&profile=liball&source=~!silibraries&uri ...
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