Schismatomma leucopsarum is a species of corticolous (bark-dwelling) crustose lichen in the family Roccellaceae.

[3] Schismatomma leucopsarum is an epiphytic (plant-dwelling) crustose lichen that strongly adheres to its substrate.

[1] The International Union for Conservation of Nature (IUCN) has assessed S. leucopsarum as Critically Endangered (CR) due to its extremely limited known distribution.

The main threats to its habitat include logging and the construction and operation of hydrocarbon transportation infrastructure, such as gas pipelines.

Despite recent surveys in areas with similar characteristics, the species has not been found again since its initial collection by Alejandro Lindig.