Microgramma squamulosa is an epiphytic fern endemic to Brazil, known for its interaction with certain gall-inducing organisms, specifically a moth from the Gelechiidae family.

[5] Historical data suggests that such interactions between plants and arthropods have been occurring since the Devonian period.

[6] The M. squamulosa fern has been studied for its susceptibility to gall formation due to gall-inducing organisms.

[2] While there are over 15,000 known types of galls found across various species like algae, fungi, and angiosperms, the primary inducer for M. squamulosa is an insect from the Gelechiidae family.

The formation of these galls might offer protection to the plant from the invading organism, but simultaneously, it may also provide a safeguard for the gall-inducing larva against potential predators.