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 s&omacron;rus, from Greek s&omacron;ros, heap; see teu&schwa;- in Indo-European roots.
sori on the frond of
a polypody fern