Limpleaf Fern
Microlepia speluncae
The Limpleaf Fern (Microlepia speluncae) is a delicate terrestrial fern characterized by its thin, translucent fronds and creeping rhizomes that form dense colonies in suitable habitats. This species plays an important ecological role in preventing soil erosion and providing microhabitat for small invertebrates in cave entrances and shaded rocky areas.
Taxonomy & Classification
Kingdom
Plantae
Phylum
Tracheophyta
Class
Polypodiopsida
Order
Polypodiales
Family
Dennstaedtiaceae
Genus
Microlepia
Limpleaf Fern belongs to the family Dennstaedtiaceae, order Polypodiales, within the Polypodiopsida class.
Species Profile
The Limpleaf Fern (Microlepia speluncae) is a delicate terrestrial fern characterized by its thin, translucent fronds and creeping rhizomes that form dense colonies in suitable habitats. This species plays an important ecological role in preventing soil erosion and providing microhabitat for small invertebrates in cave entrances and shaded rocky areas. Its distinctive limber fronds give the species its common name and help it withstand air currents in its specialized environments.
Limpleaf Fern (Microlepia speluncae) faces severe population declines primarily due to habitat destruction from urban development and agricultural expansion in its limited range. The species' restriction to specific cave and rocky outcrop environments makes it particularly vulnerable to localized disturbances and environmental changes.
Key Facts
Habitat & Distribution
Limpleaf Fern inhabits the twilight zones of limestone caves, growing on moist rocky substrates near cave entrances where filtered light and consistent humidity create ideal conditions. The species also occurs on shaded limestone cliffs and in deep rocky crevices where similar cool, humid microclimates persist year-round.
Threats
IUCN Red List: Endangered
Limpleaf Fern (Microlepia speluncae) faces severe population declines primarily due to habitat destruction from urban development and agricultural expansion in its limited range. The species' restriction to specific cave and rocky outcrop environments makes it particularly vulnerable to localized disturbances and environmental changes.
Agricultural expansion and land conversion
Habitat loss from urban development
Limited range and small population size
Cave disturbance and degradation
Climate change impacts on microhabitats
Community Sightings
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Sources & Attribution
How to Cite
IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS
GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org
This page: SpeciesRadar (2025). Limpleaf Fern (Microlepia speluncae). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/limpleaf-fern