Seedless vascular plants require water for fertilization because their sperm must swim on a layer of moisture to reach the egg, which explains why ferns and their relatives are more abundant in damp environments.

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 (3)

• sperm concept
• ovum concept
• fertilization concept