Species of lichen found in the USA and Mexico
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Xanthoparmelia joranadia is a lichen which belongs to the "Xanthoparmelia" genus. The lichen is rare and is listed as imperiled by the Nature Conservatory. It is noted for being similar to "Xanthoparmelia arida" and "Xanthoparmelia lecanorica".
Description.
It grows to around 3–8 cm in diameter with shiny light yellow-green subirregular lobes that extend 1–2.5 mm wide. It has cylindrical isidia on the upper surface. The lower surface is pale brown. "Xanthoparmelia joranadia" is a member of the "Xanthoparmelia mexicana" group, a complex of similar species that differ mainly in their secondary chemistry.
Habitat and range.
Found in the North American southwest with a majority of observations occurring in north Mexico and the US state of New Mexico.
Chemistry.
"Xanthoparmelia joranadia" contains lecanoric and usnic acids.
References.
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