'Sori' definitions:
Definition of 'Sori'
From: GCIDE
- Sorus \So"rus\, n.; pl. Sori. [NL., fr. Gr. ? a heap.]
- 1. (Bot.) One of the fruit dots, or small clusters of sporangia, on the back of the fronds of ferns. [1913 Webster]
- 2. (a) In parasitic fungi, any mass of spores bursting through the epidermis of a host plant. (b) In lichens, a heap of soredia on the thallus. [Webster 1913 Suppl.]