Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)
< Back to Home

Oak Curtain Crust Fungus

Hymenochaete rubiginosa

Life > Fungi > Basidiomycota > Agaricomycotina > Agaricomycetes > Hymenochaetales > Hymenochaetaceae > Hymenochaete


Description

The Oak Curtain Crust Fungus (Hymenochaete rubiginosa) is a common woodland crust fungi that can be found year-round on Oak. The fruiting body can grow as a crust or a shelf depending on what angle it is growing from its substrate.

The shelving caps feature concentric zones of color transitioning from black to brown from the cap attachment to margin. Sometimes the caps appear entirely black.

The hymenophore consists of microscopic pores too small to notice without a hand lens. The surface is rusty colored or tan, is bumpy, and can sometimes present a shiny iridescence.

A quick field test with dilute KOH or ammonia will turn it black on all surfaces.


Observations

August 17th, 2023 Indian Cave State Park
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)

#331

  • Growing on barkless portions on fallen hardwood log in low moist, well-shaded riparian woodland area.
  • Cap shelf-like and resupinate, black with brown concentric zonation with a wavy margin.
  • Hymenium brown and lumpy.
  • Additional Info
  • KOH on pileipellis and hymenium jet black.
  • Ammonia on pileipellis and hymenium black.
DNA Barcode ITS:
GTCGTAACAAGGTTTCCGTAGGTGAACCTGCGGAAGGATCATTACTGAGGTTTAACCGGGGGTGAGCTCGCTGCTGGCGCATTCTCTTTTGAGCGCGCATGTGCACAGTTCATCTTCGTTTCCTTCCTTATCAACCCCTGTGCACTATATTAGGATTAGAGAGAAGCGCGTCGCTCAGGGATTAACGTACTAGCTGTGGGTCCCACTCGCGGCAAAAGGTTGATCTGTTATCGGCGGCGTGTGGTACCTCAAAGTCCTTGTTTATCATAAACCACTATACATGTCTTGTCAGAATGTTCAGTCCCTCGTTGGACTCTAAATATAATACAACTTTCAACAACGGATCTCTTGGCTCTCGCATCGATGAAGAACGCAGCGAAATGCGATAAGTAATGTGAATTGCAGAATTCAGTGAATCATCGAATCTTTGAACGCACCTTGCGCCCTTTGGTATTCCGAAGGGCACGCCTGTTTGAGTGTCATGTTCATCTCAATCCATCAAGCTTGGCCTTGGGTTGGATTTGGGAGCCTGCTGGCCCCTTTTGCTGGGGTCGGCTCTCCTTGAATGCATGAGTGAGCATCTGACTCGCGTTGCTGGTGTGATAAAGTTTCATCATTGGCGATGCTTGTCTAATGGGCTTGCTTTCGAACCGTCTTCTCAACGGAGACAACCTTTGACATATTTGACCTCAAATCAGGTGGGACTACCCGCTGAACTT
May 16th, 2023 Indian Cave State Park
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)

42

Growing partially resupinate on large hardwood log (presumably Northern Red Oak) in low mixed oak/hickory woodland.

  • KOH instantly jet black on hymenium and upper cap surfaces.
November 16th, 2024
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)

Not Collected. Growing on rotting hardwood log in mixed oak woodland.

June 16th, 2024 Niobrara Valley Preserve
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)

Not collected

June 30th, 2024
Oak Curtain Crust Fungus (Hymenochaete rubiginosa)

Not Collected.

Nebraska Mushrooms is a collaboration of wildlife groups with a mission to promote the education, recreation, and conservation of fungi in Nebraska.

Field Guide Download | About | Contact | © Fungi Project 2025