Sporophylls

Definition

Sporophylls are specialized leaves that bear sporangia, the structures where spores are produced. They play a crucial role in the reproductive cycles of seedless plants like ferns and mosses.

5 Must Know Facts For Your Next Test

1. Sporophylls can be found in both non-vascular and vascular plants.
2. In ferns, sporophylls are often grouped into clusters called sori.
3. Lycophytes produce microphylls, which are small sporophylls with a single vein.
4. Sporophylls may be modified to form cones or strobili in some plant species.
5. They are integral to the alternation of generations, facilitating the transition from the sporophyte to the gametophyte stage.

Review Questions

• What is the primary function of a sporophyll in seedless plants?
• How do sporophylls differ between ferns and lycophytes?
• Describe the role of sporophylls in the alternation of generations.

Related terms

Sporangium: A structure where spores are produced and housed.

Gametophyte: The haploid phase of the plant life cycle that produces gametes.

Strobilus: A structure composed of densely packed sporophylls, commonly known as a cone.