Beaded Tube Lichen

Thallus made up of tube-like lobes, constricted at intervals, usually has a hole at the top of each lobe; white upper surface and black underneath. Apothecia raised and brown. Occurs in forests of all types (conifers and hardwoods), but not in deep shade. Used in air quality monitoring. Thirteen species of Hypogymnia occur in this region.

Alaska species lichens Beaded Tube Lichen


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