United States Forest Service
National Lichens & Air Quality Database and Clearinghouse
Home
Database Queries
Explanation
Lichen Plot Data
Elemental Analysis Data
Element Threshold Data (R6)
Lichen Species Data
Element Analysis Thresholds & Sensitivity Ratings
Clean Site Thresholds
Eastern US Sensitivity Ratings
Western US Sensitivity Ratings
Pacific NW Sensitivity Ratings
Air Pollution Effects on Lichens
Reports, Publications, Protocols
Lichen Images
Illustrations
Lichen Structures
Photographs
Contribute Images
Effects of Pollution
Fun with Lichens and Air Quality: Projects & Ideas
Lesson Plans
Share Your Projects
Resources for Teachers
Links to Other Resources
Lichens and Air Quality Workgroup
Air Program Contacts
Lichen Illustrations
By Alexander Mikulin (mag@proaxis.com)
Stenocybe major
Back to Illustrations
