In ferns, some leaves are “fertile” in that they bear sporangia. What are the analogous structures to such fertile fronds in angiosperms? (Select all that apply.)carpelspetalsstamenssepalsIn ferns, some leaves are “fertile” in that they bear sporangia. What are the analogous structures to such fertile fronds in angiosperms? (Select all that apply.)carpelspetalsstamenssepals Solution c). Stamens d). Sepals The fertile leaves in ferns bearing sporangia are the analogous to the stamens and sepals of the angiosperms. In the flower structure, the third whorl contains the male parts that contain the pollen grains, these are called stamens..