Strobili

Definition

Strobili are cone-like structures that contain sporangia, where spores are produced and released. They are found in certain groups of seedless vascular plants, such as lycophytes and horsetails.

5 Must Know Facts For Your Next Test

1. Strobili contain both microsporangia (producing microspores) and megasporangia (producing megaspores).
2. They play a crucial role in the reproductive cycle of seedless vascular plants.
3. In lycophytes, strobili are often located at the tips of branches.
4. Horsetails (Equisetum) produce strobili at their stem tips.
5. Strobili facilitate the dispersal of spores into the environment.

Review Questions

• What types of sporangia can be found in strobili?
• In which groups of seedless vascular plants are strobili commonly found?
• What is the primary function of strobili in these plants?

Related terms

Sporangia: Structures where spores are formed and stored before release.

Lycophytes: A group of seedless vascular plants that often feature strobili on their branches.

Horsetails: Seedless vascular plants that produce strobili at the tips of their stems.