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Lichen squamulose.jpg
Xanthoparmelia cf. lavicola, a foliose lichen, on basalt
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Subclass: Lecanoromycetidae
Order: Lecanorales
Family: Parmeliaceae
Genus: Xanthoparmelia
(Vain.) Hale

Xanthoparmelia (rock-shield lichen) is a genus of foliose lichen in the Parmeliaceae family.[1]:134 Xanthoparmelia is synonymous with Almbornia, Neofuscelia, Chondropsis, Namakwa, Paraparmelia, and Xanthomaculina.[2] This family of lichen is commonly found on the mid-east coast of the United States.

The name means 'golden yellow parmelia'. The photobiont (photosynthetic partner) is trebouxioid (a genus of algae).


Distinguishing between species involves how much they are attached to the substrate, whether or not isidia are present, lower surface color, and chemical spot tests.[1]:134 All members of the genus react to spot test as K-, KC+ yellow, with medulla reaction varying from species to species.[1]:134




  1. ^ a b c Field Guide to California Lichens, Stephen Sharnoff, Yale University Press, 2014, ISBN 978-0-300-19500-2
  2. ^ Lumbsch TH, Huhndorf SM. (December 2007). "Outline of Ascomycota – 2007". Myconet. Chicago, USA: The Field Museum, Department of Botany. 13: 1–58. Archived from the original on March 18, 2009. 
  3. ^ Dobson, Frank S (2005). Lichens An Illustrated Guide to the British and Irish Species. The Richmond Publishing Co.Ltd. pp. 459–460. ISBN 978-0-85546-095-2. 
  4. ^ "Xanthoparmelia metastrigosa". Retrieved 2015-06-20. 

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