from The Century Dictionary and Cyclopedia
- n. In botany, an orbicular granular concretion which occurs on the thallus of lichens, and in which gonidia are localized.
Sorry, no etymologies found.
A section through a cephalodium of _Peltigera aphthosa_; a, the surrounding cortex; b, the internal hyphae and the cells of the algal host; c, the supporting hyphae from the thallus below.
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