Summary ²

Rhizocarpon geographicum (the map lichen) is a species of lichen, which grows on rocks in mountainous areas of low air pollution. Each lichen is a flat patch bordered by a black line of spores. These patches grow adjacent to each other, leading to the appearance of a map or a patchwork field.

Sources and Credits

1. (c) Amadej Trnkoczy, some rights reserved (CC BY-NC-SA), https://www.flickr.com/photos/atrnkoczy/3158595221/
2. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Rhizocarpon_geographicum

More Info

• iNat taxon page
• Atlas of Living Australia
• Biodiversity Heritage Library
• BOLD Systems BIN search
• CalPhotos
• Global Biodiversity Information Facility (GBIF)
• Mushroom Observer
• NatureServe Explorer 2.0
• NBN Atlas
• SEINet Symbiota portals
• USDA PLANTS database
• Ways of Enlichenment
• 日本のレッドデータ検索システム

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