fragile filmy fern
CR

fragile filmy fern

Hymenophyllum fragile

Unknown

Photo: Photo: (c) MBG, some rights reserved (CC BY-NC-SA)

Overview

The fragile filmy fern (Hymenophyllum fragile) is a delicate epiphytic fern characterized by its translucent, film-like fronds that are only one cell layer thick. This diminutive species typically grows in small patches on moss-covered tree trunks and rocks, playing a crucial role in maintaining moisture levels and providing microhabitat for invertebrates in humid forest ecosystems.

The fragile filmy fern faces severe threats primarily from habitat destruction and degradation of its specialized humid forest environments. Climate change poses additional risks by altering the precise moisture and temperature conditions this delicate epiphytic species requires for survival.

Threat summary

Habitat

Hymenophyllum fragile inhabits the humid understory of temperate and subtropical rainforests, growing exclusively on moss-covered surfaces of tree trunks, fallen logs, and shaded rock faces. The species requires consistently high humidity levels and filtered light conditions found in old-growth forest environments with dense canopy cover.

Frequently asked questions

Why is fragile filmy fern classified as Critically Endangered?
fragile filmy fern is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. The fragile filmy fern faces severe threats primarily from habitat destruction and degradation of its specialized humid forest environments. Climate change poses additional risks by altering the precise moisture and temperature conditions this delicate epiphytic species requires for survival.
Where does fragile filmy fern live?
fragile filmy fern occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to fragile filmy fern?
The main threats to fragile filmy fern are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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