Caloplaca saxicola
Caloplaca saxicola is a small bright orange crustose lichen that grows on rock all over the world.[1]: 245–6 It is commonly called rock firedot lichen,[1]: 245 jewel lichen or rock jewel lichen.
| Caloplaca saxicola | |
|---|---|
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| Scientific classification  | |
| Kingdom: | Fungi | 
| Division: | Ascomycota | 
| Class: | Lecanoromycetes | 
| Order: | Teloschistales | 
| Family: | Teloschistaceae | 
| Genus: | Caloplaca | 
| Species: | C. saxicola  | 
| Binomial name | |
| Caloplaca saxicola (Hoffm.) Nordin  | |
It has short, inflated looking elongate 1–2 mm and .3-.1 mm wide lobes that have an abrupt margin at the edge, and no prothallus.[2] It lacks isidea or soredia.[2] Apothecia may be immersed in the thallus or adnate to it, with rims of thallus-like tissue (lecanorine) with orange, flat, .4–1 mm wide epruinose discs.[2] Aptohecia develop near the lobe tips. C. ignea and C. impolita are similar but bigger, and have apothecia that form near the thallus center.[2]
In California, it is one of the most common saxicolous lichens.[1]: 245–6 This lichen occurs over a portion of northern North America.[3] A specific example occurrence is within the northern reaches of the Canadian Boreal forests, where Black Spruce is a dominant tree.[4]
See also
    
    
References
    
- Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ISBN 978-0-300-19500-2
 - Lichen Flora of the Greater Sonoran Desert Region. Vol 3, Nash, T.H., Ryan, B.D., Gries, C., Bugartz, F., (eds.) 2001,
 - Irwin M. Brodo, Sylvia Duran Sharnoff, Stephen Sharnoff and Susan Laurie-Bourque. 2001
 - Michael Hogan. 2008. Black Spruce: Picea mariana, GlobalTwitcher.com, ed. Nicklas Stromberg Archived October 5, 2011, at the Wayback Machine
 
 Media related to Caloplaca saxicola at Wikimedia Commons
