So"rus (?), n.; pl. Sori (#). [NL., fr. Gr. &?; a heap.] (Bot.)

One of the fruit dots, or small clusters of sporangia, on the back of the fronds of ferns.


© Webster 1913

So"rus (?), n.


In parasitic fungi, any mass of spores bursting through the epidermis of a host plant.


In lichens, a heap of soredia on the thallus.


© Webster 1913