Hooded Ribbon Lichen
CR

Hooded Ribbon Lichen

Ramalina obtusata

Unknown

Photo: Photo: (c) Samuel Brinker, all rights reserved, uploaded by Samuel Brinker

Overview

The Hooded Ribbon Lichen (Ramalina obtusata) is a fruticose lichen species characterized by its distinctive flattened, ribbon-like thalli that form pendant clusters resembling miniature curtains. This epiphytic lichen plays a crucial ecological role as a bioindicator of air quality and provides habitat and food sources for various invertebrates and small mammals.

Hooded Ribbon Lichen (Ramalina obtusata) is critically endangered primarily due to air pollution, particularly sulfur dioxide and nitrogen compounds that severely impact lichen survival. Habitat loss from coastal development and climate change effects including altered precipitation patterns and increased storm intensity further threaten the remaining populations of this sensitive epiphytic species.

Threat summary

Habitat

Ramalina obtusata grows exclusively on the bark of mature deciduous trees, particularly favoring oak, maple, and ash species in humid temperate forests. The species requires specific microclimatic conditions found in old-growth forest canopies where air circulation is optimal and pollution levels remain minimal.

TERRESTRIAL· major

Frequently asked questions

Why is Hooded Ribbon Lichen classified as Critically Endangered?
Hooded Ribbon Lichen 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. Hooded Ribbon Lichen (Ramalina obtusata) is critically endangered primarily due to air pollution, particularly sulfur dioxide and nitrogen compounds that severely impact lichen survival. Habitat loss from coastal development and climate change effects including altered precipitation patterns and increased storm intensity further threaten the remaining populations of this sensitive epiphytic species.
Where does Hooded Ribbon Lichen live?
Hooded Ribbon Lichen 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 Hooded Ribbon Lichen?
The main threats to Hooded Ribbon Lichen 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.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.