The morphology of gymnosperms the structure and evolution of primitive seed-plants [by] K. R. Sporne
Palaeozoic pteridospermales -- Glossopteridaceae and mesozoic pteridospermales -- Bennettitales (= Cycadeoideales) -- Pentoxylales -- Cycadales -- Cordaitles ...
Results that may be inaccessible to you are currently showing.
Hide inaccessible results