Britannica AI Icon

Quick Summary

A sporophyll is a leaf that bears sporangia, which are structures that produce spores. In plants, the life cycle alternates between a sporophyte (asexual, diploid) and a gametophyte (sexual, haploid) phase. The sporophyte phase grows and produces spores through meiosis.12

In lower vascular plants like ferns and club mosses, the sporophyte is the dominant phase. Fern sporophytes produce spores in clusters called sori on their fronds. Some plants, like horsetails, have specialized leaves called sporophylls that form cones or strobili, each bearing sporangia. In contrast, primitive plants like mosses have a dominant gametophyte phase.312

Summary created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Ask Britannica AI about this topic

Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.