(Phlyctis argena)
Glossary
Apothecium
An open, disk-shaped or cup-shaped, reproductive structure, with spore sacs on the upper surface, that produces spores for the fungal partner of a lichen. Plural: apothecia.
Crusticose
Crusty; referring to lichens in such close contact with the rock surface (substrate) that it appears sprayed on like paint.
Prothallus
The border of a lichen where the fungal partner is growing but the algal partner is not. The color is different than the thallus due the absence of the algae.
Soredium
The reproductive structure of a lichen consisting of a cluster of algal cells (the photobiont) wrapped in fungal filaments (the mycobiont). Plural: soredia.
Thallus
The vegetative body of a lichen composed of both the alga and the fungus. Plural: thalli.
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Created: 11/24/2019
Last Updated: