North America Native Plant

Vouauxiomyces

Botanical name: Vouauxiomyces

USDA symbol: VOUAU2

Habit: lichen

Native status: Native to North America  

Vouauxiomyces: The Tiny Fungi You’ll Never See (But Should Know About) If you’ve stumbled across the name Vouauxiomyces while researching native species, you might be scratching your head wondering what exactly this mysterious organism is. Well, here’s the plot twist: Vouauxiomyces isn’t a plant you can add to your garden ...

Vouauxiomyces: The Tiny Fungi You’ll Never See (But Should Know About)

If you’ve stumbled across the name Vouauxiomyces while researching native species, you might be scratching your head wondering what exactly this mysterious organism is. Well, here’s the plot twist: Vouauxiomyces isn’t a plant you can add to your garden beds or landscape design. Instead, it’s a fascinating group of microscopic fungi that live secret lives on lichens!

What Exactly Is Vouauxiomyces?

Vouauxiomyces belongs to a special category of fungi called lichenicolous fungi, which is just a fancy way of saying fungi that live on lichens. Think of them as the ultimate freeloaders of the natural world – they’ve found a way to make their homes directly on other organisms (lichens) without necessarily harming them. Some species in this genus are parasitic, while others live more peacefully alongside their lichen hosts.

These tiny organisms are so small that you’d need a microscope to see them properly. They’re part of North America’s native ecosystem, quietly doing their fungal thing in the background while most of us remain completely unaware of their existence.

Is Vouauxiomyces Beneficial to Your Garden?

Here’s where things get interesting – and a bit disappointing if you were hoping to cultivate these fungi. Vouauxiomyces species can’t be grown in your garden in any traditional sense. They’re not something you can order from a nursery, plant in a pot, or encourage to spread across your landscape.

However, they do play a role in the broader ecosystem. As part of the complex web of organisms that interact with lichens, they contribute to biodiversity in ways we’re still learning to understand. If you have lichens naturally growing in your area (on rocks, trees, or other surfaces), there’s a chance these microscopic fungi are already present, doing their part in the intricate dance of nature.

How to Identify Vouauxiomyces

Let’s be honest – you’re probably never going to identify Vouauxiomyces with your naked eye. These fungi are microscopic and require specialized equipment and expertise to properly identify. Here’s what you might notice instead:

  • Look for lichens in your area – they appear as crusty, leafy, or branching growths on rocks, tree bark, or soil
  • Lichens might show subtle signs of discoloration or unusual growth patterns if lichenicolous fungi are present
  • Some infected lichens may develop small, dark spots or abnormal structures
  • Remember that many lichenicolous fungi cause no visible symptoms at all

The Bottom Line for Gardeners

While Vouauxiomyces won’t be starring in your next garden makeover, learning about these microscopic natives reminds us that biodiversity exists at every scale – from the towering oak trees to the tiniest fungi we’ll never see. If you’re interested in supporting native ecosystems, focus on:

  • Preserving existing lichens on rocks and tree bark in your landscape
  • Avoiding unnecessary cleaning or removal of lichen-covered surfaces
  • Reducing air pollution, which can harm lichen communities
  • Choosing native plants that support the broader ecosystem

So while you can’t plant Vouauxiomyces in your garden, you can create conditions that support the complex communities these tiny organisms are part of. Sometimes the best gardening is about what we choose not to disturb!

Vouauxiomyces

Classification

Group

Lichen

Kingdom

Fungi - Fungi

Subkingdom
Superdivision
Division

Ascomycota - Sac fungi

Subdivision
Class

Uncertain Ascomycota Class

Subclass
Order

Uncertain Ascomycota Order

Family

Uncertain Ascomycota Family

Genus

Vouauxiomyces Dyko & D. Hawksw.

Species

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA