A sorus (pl.: sori) is a cluster of sporangia (structures producing and containing spores) in ferns and fungi. A coenosorus (pl.: coenosori) is a compound sorus composed of multiple, fused sori.

Mar 22, 2025 · sori Examples of sori and arrangements of sporangia in various species of ferns. (more) Hand in hand with the reduction in size of single sporangia are seen more and more …

Sori are usually found on the underside of the blade. Young sori are commonly covered by flaps of protective tissue called indusia (singular: indusium). See the following graphic. Sori can vary …

Aug 12, 2020 · A sorus (pl. sori) is a cluster of sporangia (structures producing and containing spores) in ferns and fungi. In ferns, the sori form a yellowish or brownish mass on the edge or …

Sorus, in botany, brownish or yellowish cluster of spore-producing structures (sporangia) usually located on the lower surface of fern leaves. A sorus may be protected during development by …

Dec 28, 2020 · Spores are encased in structures called sporangia, which sometimes clump together to form a sorus (plural sori). In some ferns, sporangia are protected by membranes …

Dec 3, 2024 · In ferns, sporangia appear in clusters called sori, located on the undersides of some fronds or in bead-like aggregates, sometimes on separate fertile fronds. A sorus may be …

Fern sporophytes are composed of megaphylls, often pinnately compound fronds that emerging as fiddleheads in the spring. Sporangia are produced in clusters called sori (sorus, singular) on …

Mar 17, 2025 · This page discusses ferns, which have over 10,000 species mostly in tropical areas, featuring two generations: the diploid sporophyte, recognizable for its sori on fronds …

May 28, 2023 · Fern fronds house a fascinating feature: sporangia. Sporangia are tiny cases called sori found on the underside of fronds that produce and contain spores. These spores …