• (n.) A rootlike filament or hair growing from the stems of mosses or on lichens; a rhizoid.
(from the article `lichen`) ...number of fungal cells (called the mycobionts). The heteromerous thallus differs in that it has a predominance of fungal cells. Hairlike growths ... ...hyphae that may contain pigments. A cuticle may cover the cortex. The lower cortex, which is similar in structure to the upper cortex, ... [2 related ar...
Rhi'zine noun [ Greek ......... root.] (Botany) A rootlike filament or hair growing from the stems of mosses or on lichens; a rhizoid. 
rhizine A root-like structure on the underside of a lichen, consisting of one or several rhizoids.