# Orange-Cored Shadow Lichen (*phaeophyscia rubropulchra*)

The Orange-Cored Shadow Lichen is a colorful and fascinating plant that grows on rocks and trees. Its vibrant orange core makes it easy to spot in shady areas!

- **Category:** [Fungi](https://www.snappit.app/explore/categories/fungi)
- **Rarity:** Common
- **Danger:** 0/5 · No known danger
- **Snaps:** 1
- **Habitat:** You can find it growing on rocks and tree bark in shady forests.
- **Also known as:** Forest Lichen, Shadow Lichen

![Orange-Cored Shadow Lichen](https://commons.wikimedia.org/w/index.php?title=Special:Redirect/file/Phaeophyscia_rubropulchra_-_Flickr_-_pellaea.jpg&width=800)

Photo: Jason Hollinger, CC BY 2.0 · [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Phaeophyscia_rubropulchra_-_Flickr_-_pellaea.jpg)

## Appearance

The Orange-Cored Shadow Lichen is a small, flat, leafy (foliose) lichen with dark greenish-brown lobes. Its most striking feature is the bright orange, powdery center (soralia), which makes it visually distinct from other shadow lichens.

## Taxonomy

- **Kingdom:** Fungi
- **Phylum:** Ascomycota
- **Class:** Lecanoromycetes
- **Order:** Caliciales
- **Family:** Physciaceae
- **Genus:** Phaeophyscia

## Interesting facts

- Lichens are like tiny air quality monitors, disappearing if the air is dirty.
- Lichens don't have roots! They just cling to surfaces and absorb what they need.
- Some lichens grow so slowly, they only get bigger by a millimeter each year!
- The oldest lichens discovered are thousands of years old, older than big trees!

## Special abilities

- **Teamwork Power:** Orange-Cored Shadow Lichen is a super team, combining a fungus and algae to make its own food and survive tough places!
- **Weather Wizardry:** Orange-Cored Shadow Lichen can dry out completely in harsh weather, then spring back to life when it rains, like a tiny sponge.
- **Rock Starter:** Orange-Cored Shadow Lichen has special acids that help slowly break down rocks, creating new soil for other plants to grow.
- **Sun Shield:** Orange-Cored Shadow Lichen has bright orange pigments that act like natural sunscreen, protecting it from too much sunlight.

## Measurements & details

- **Height:** 0.1-0.5 cm
- **Spread:** 1-3 cm
- **Edible:** No
- **Toxicity:** None
- **Lifecycle:** Perennial

## Ecological connections

- **Symbiotic with:** Green Algae (*Trebouxia irregularis*) — provides food through photosynthesis
- **Eaten by:** Red Slug (*Arion rufus*) — grazes on its thallus
- **Shelter:** Green Springtail (*Isotoma viridis*) — provides microhabitat for tiny invertebrates

## Traits

- [Solitary](https://www.snappit.app/explore/traits/solitary): Solitary animals live alone for most of their lives, only interacting with others for mating or parental care.
- [Camouflaged](https://www.snappit.app/explore/traits/camouflaged): Camouflaged describes organisms that possess coloring or patterns that allow them to blend into their environment.
- [Colorful](https://www.snappit.app/explore/traits/colorful): Colorful describes organisms or objects displaying a wide range of bright and distinct colors.
- [Decomposer](https://www.snappit.app/explore/traits/decomposer): Describes organisms that break down dead organic material, recycling nutrients back into the ecosystem.
- [Forest](https://www.snappit.app/explore/traits/forest): Forest habitats are terrestrial environments dominated by dense tree cover, supporting a high diversity of plant and animal life.

## Collections

- [Fungi](https://www.snappit.app/explore/collections/fungi)
- [Plants](https://www.snappit.app/explore/collections/plants)

## Safety

**Danger:** 0/5 · No known danger

No special safety notes yet.

## Frequently Asked Questions

### How to identify Orange-Cored Shadow Lichen?

Compare the cap shape, the underside, the stem and base, and whether the fungus grows on wood or soil. Some fungi have gills, others pores or teeth. A cap seen only from above often hides the most useful features. Mushroom Identifier: upload a photo and compare the visible details.

### How tall is Orange-Cored Shadow Lichen?

0.1-0.5 cm

### How wide does Orange-Cored Shadow Lichen spread?

1-3 cm

### Is Orange-Cored Shadow Lichen edible?

No

### Is Orange-Cored Shadow Lichen toxic?

None

### What is Orange-Cored Shadow Lichen's lifecycle?

Perennial

### Where is Orange-Cored Shadow Lichen usually found?

You can find it growing on rocks and tree bark in shady forests.

## Where to spot

- [Elk State Forest](https://www.snappit.app/guides/places/elk-state-forest) — Pennsylvania, US · Forest
- [Prouty Place State Park](https://www.snappit.app/guides/places/prouty-place-state-park) — Pennsylvania, US · State Park

## More Fungi

- [Field Mushroom](https://www.snappit.app/explore/field-mushroom) (*Agaricus*)
- [Button Mushroom](https://www.snappit.app/explore/button-mushroom) (*Agaricus*)
- [Portobello Mushroom](https://www.snappit.app/explore/portobello-mushroom) (*Agaricus*)
- [Shiitake](https://www.snappit.app/explore/shiitake) (*Lentinula*)

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Source: [Orange-Cored Shadow Lichen: Facts & Places to See — Snappit](https://www.snappit.app/explore/orange-cored-shadow-lichen)