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Fig. 4 | BMC Evolutionary Biology

Fig. 4

From: Macrofossil evidence unveiling evolution of male cones in Ephedraceae (Gnetidae)

Fig. 4

Reconstruction of Eamesia chinensis. a, plant portion displaying the habit, the decussate phyllotaxy, and the terminal male cones; b, male cone magnified displaying the loosely organized male spikes, the acropetal developmental pattern, and the modified synangiophore having a pair of foliar organs below the terminal synangia. Abbreviations: a, synangiophore; b, bract; f, foliar organ; l, leaf; m, male spike; s, synangium

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