cephalodium

cephalodium

[‚sef·ə′lō·dē·əm]
(botany)
A small wart-like growth containing nitrogen-fixing cyanobacteria that is found on or in the thallus of some lichens with photobionts.
References in periodicals archive ?
--Capituliform inflorescence (or capitate inflorescence or cephalodium): indeterminate inflorescence, similar to a capitulum or head, due to a pronounced shortening of the internodes on the main axis and branches of different order.
Also known as "head," "cephalodium," and "calathidium" (Weberling, 1989).