a cluster of spore cases, esp. the ones on the undersurface of a fern frond
Origin of sorusModern Latin from Classical Greek s?ros, a heap: see soma
- A cluster of sporangia borne on the underside of a fern frond. Also called fruit dot .
- A reproductive structure in certain fungi and lichens.
Origin of sorusNew Latin sōrus from Greek sōros heap ; see teuə- in Indo-European roots.
sori on the frond of
a polypody fern