Sorus: alternatives and connections

stout tropical swamp fern (especially tropical America) having large fronds with golden yellow sporangia covering the undersides

A genus of tall conifers of the pine family. The species are confined mostly to South America and Australia. The wood cells differ fro…

small wild or half-domesticated Eurasian plum bearing small ovoid fruit in clusters

North American evergreen fern having pinnate leaves and dense clusters of lance-shaped fronds

any of several tropical ferns of the genus Christella having thin brittle fronds

North American evergreen fern having pinnate leaves and dense clusters of lance-shaped fronds

To grow in clusters or assemble in groups; to gather or unite in a cluster or clusters.

Growing in, or full of, clusters; like clusters.

North American evergreen fern having pinnate leaves and dense clusters of lance-shaped fronds

Bearing, or producing, on the back; -- applied to ferns which produce seeds on the back of the leaf, and to certain Batrachia, the ova…

Bearing fruit on the back of the leaves, as ferns.

North American evergreen fern having pinnate leaves and dense clusters of lance-shaped fronds

New World fern having woolly cinnamon-colored spore-bearing fronds in early spring later surrounded by green fronds; the early uncurli…

any fern of the genus Osmunda: large ferns with creeping rhizomes; naked sporangia are on modified fronds that resemble flower clusters

stout tropical swamp fern (especially tropical America) having large fronds with golden yellow sporangia covering the undersides

Australasian fern with clusters of sporangia on stems of fertile fronds

any of various ferns of the genus Polystichum having fronds with texture and gloss like holly

Being or growing on the under side of a leaf, as the fruit dots of ferns.