Seed ferns are considered the first true seed plants because they possessed cupules that enclosed and protected the ovule, the female gametophyte, and associated tissues, which developed into a seed upon fertilization.

Authors

• Person: Not available Organization: LibreTexts
  5.9.1: Kingdom Plantae - Evolution and Phylogeny

Sources

• 5.9.1: Kingdom Plantae - Evolution and Phylogeny bio.libretexts.org LibreTexts via serper

Referenced by nodes (2)

• seed plants concept
• fertilization concept