The cortex of a lichen is the tightly packed fungal layer. 

Lichen Cortex

Lichen Thallus

The medulla of a lichen is the loosely packed fungal layer.

Lichen Medulla

The rhizines of lichen are the hyphal bundles used to attach to the substrate.

Lichen Rhizines

Lichens are nonpathogenic microorganism that is a combination of green algae and fungus. They can be found commonly slowly growing on rocks or plants.

Lichens

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Microbiology covers the scope and sequence requirements for a single-semester microbiology course for non-majors. The book presents the core concepts of microbiology with a focus on applications for careers in allied health. The pedagogical features of the text make the material interesting and accessible while maintaining the career-application focus and scientific rigor inherent in the subject matter. Microbiology’s art program enhances students’ understanding of concepts through clear and effective illustrations, diagrams, and photographs.

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Structural Components of Lichen

- Crustose Lichens
- Foliose Lichens
- Fruticose Lichens

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