Lichen of the Yakutat Ranger District, Tongass National Forest

A guide of the known species of lichen on the Yakutat Ranger District of the Tongass National Forest in Yakutat, Alaska. There are several different types of lichen: 1. Crustose- which is crustlike and grows tightly against the substrate 2.Foliose- which form leaf-like flat sheets of tissue, and 3. Fruticose- which forms free-standing branching tubes or are hair-like. This guide is categorized by growth type to assist in identification. less ↑