sorus
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so·rus

noun \ˈsr-əs\
plural so·ri \ˈsr-ˌī, -ˌē\

Definition of SORUS

: a cluster of plant reproductive bodies: as
a : a cluster of sporangia on the underside of a fertile fern frond
b : a mass of spores bursting through the epidermis of the host plant of a parasitic fungus
c : a cluster of gemmae on the thallus of a lichen

Origin of SORUS

New Latin, from Greek sōros heap
First Known Use: 1832

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