Plants of the Gila Wilderness
Presented in Association with the
Western New Mexico University Department
of Natural Sciences
Xanthoparmelia wyomingica (Gyelnik) Hale
Variable Rockfrog
Xanthoparmelia wyomingica is adherent to small pebbles and sand grains rather than being
completely vagrant as is the related X. chlorochroa which can be seen in the El Malpais area.
The thalli of X. wyomingica are inrolled and light yellow green on top, light brown on the bottom with dark brown
to black forked rhizines. Soredia, isidia are not present, and apothecia are not usually seen.
The medulla turns yellow and then red in KOH.
X. wyomingica can be found on loose barren flat gravelly soil that is dry most of the year.
Please click on an image for a larger file.
Xanthoparmelia wyomingica, photo Russ Kleinman & Karen Blisard, Silver City Range, south side of
Bear Mtn. Road, September 2, 2019
Xanthoparmelia wyomingica, macro of thalli, photo Russ Kleinman & Karen Blisard, Silver City Range, south side of
Bear Mtn. Road, September 2, 2019
Xanthoparmelia wyomingica, photomicrograph of thalli, photo Russ Kleinman & Karen Blisard, Silver City Range, south side of
Bear Mtn. Road, September 2, 2019
Xanthoparmelia wyomingica, photomicrograph of bottom of thalli, photo Russ Kleinman & Karen Blisard, Silver City Range, south side of
Bear Mtn. Road, September 2, 2019
Xanthoparmelia wyomingica, photomicrograph of cross section of thallus, photo Russ Kleinman & Karen Blisard, Silver City Range, south side of
Bear Mtn. Road, September 2, 2019
Xanthoparmelia wyomingica, photomicrograph of cross section of thalli in KOH, photo Russ Kleinman & Karen Blisard, Silver City Range, south side of
Bear Mtn. Road, September 2, 2019
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