The Earliest Fleshy Cone of Ephedra from the Early Cretaceous Yixian Formation of Northeast China
Figure 5
A schematic reconstruction of fossil Ephedra carnosa female cone and its seed.
A. The triovulate cone of E. carnosa, bearing three spreading, fleshy bracts (b) and three female reproductive units (fru). B. The seed, showing the outer envelope (oe), inner integument (i) and a micropylar tube (mt).