Pertusaria wulfenioides is a crustose lichen that grows on wood. We found it on two downed Ponderosa Pine trunks (and branches from the trunks) from
which the bark had been stripped (lignicolous). The thallus of P. wulfenioides is yellow-green-gray and wrinkled. Many fertile warts (verrucae) are usually found
with several dark apothecia per wart. There usually are 4 spores per ascus. The spores are large and thick-walled. The cortex is C+ yellow, and the medulla is K+ red.
The photobiont is Trebouxia.
Please click on an image for a larger file.
Pertusaria wulfenioides, photo Russ Kleinman & Karen Blisard, Gila NF, Hwy 15 about 0.5 mi N of Meadow Creek in canyon to the east of road, on Ponderosa Pine trunks stripped of bark, December 20, 2024
Pertusaria wulfenioides, closeup, photo Russ Kleinman & Karen Blisard, Gila NF, Hwy 15 about 0.5 mi N of Meadow Creek in canyon to the east of road, on Ponderosa Pine trunks stripped of bark, December 20, 2024
Pertusaria wulfenioides, closeup, photo Russ Kleinman & Karen Blisard, Gila NF, Hwy 15 about 0.5 mi N of Meadow Creek in canyon to the east of road, on Ponderosa Pine trunks stripped of bark, December 20, 2024
Pertusaria wulfenioides, macro, photo Russ Kleinman & Karen Blisard, Gila NF, Hwy 15 about 0.5 mi N of Meadow Creek in canyon to the east of road, on Ponderosa Pine trunks stripped of bark, December 20, 2024
Pertusaria wulfenioides, photomicrograph of warts with apothecia, photo Russ Kleinman & Karen Blisard, Gila NF, Hwy 15 about 0.5 mi N of Meadow Creek in canyon to the east of road, on Ponderosa Pine trunks stripped of bark, December 20, 2024
Pertusaria wulfenioides, higher power photomicrograph of warts with apothecia, photo Russ Kleinman & Karen Blisard, Gila NF, Hwy 15 about 0.5 mi N of Meadow Creek in canyon to the east of road, on Ponderosa Pine trunks stripped of bark, December 20, 2024
Pertusaria wulfenioides, photobiont is Trebouxia, photo Russ Kleinman & Karen Blisard, Gila NF, Hwy 15 about 0.5 mi N of Meadow Creek in canyon to the east of road, on Ponderosa Pine trunks stripped of bark, December 20, 2024
Pertusaria wulfenioides, higher power photomicrograph of 4 thick-walled spores per ascus, photo Russ Kleinman & Karen Blisard, Gila NF, Hwy 15 about 0.5 mi N of Meadow Creek in canyon to the east of road, on Ponderosa Pine trunks stripped of bark, December 20, 2024
Pertusaria wulfenioides, medulla is K+ red, photo Russ Kleinman & Karen Blisard, Gila NF, Hwy 15 about 0.5 mi N of Meadow Creek in canyon to the east of road, on Ponderosa Pine trunks stripped of bark, December 20, 2024
Pertusaria wulfenioides, cortex is C+ yellow, photo Russ Kleinman & Karen Blisard, Gila NF, Hwy 15 about 0.5 mi N of Meadow Creek in canyon to the east of road, on Ponderosa Pine trunks stripped of bark, December 20, 2024
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