Mushrooms in Herkimer County, New York
Fruiting now
Based on past sightings (mostly since 2011; all years where recent records are few), not a forecast. Weather and place matter a lot, and a listing here says nothing about whether a mushroom is safe.
Too few past records in January here to list species.
Too few past records in February here to list species.
Too few past records in March here to list species.
Too few past records in April here to list species.
Usually recorded in May here:
Narrow Entoloma Entoloma strictius2 May records since 2011
Usually recorded in June here:
Pine Bracket Porodaedalea pini3 June records across all years
Usually recorded in July here:
Hardwood Trunk Rot Phellinus igniarius3 July records across all years
Grisette Amanita vaginata2 July records across all years
Blackfoot Polypore Cerioporus leptocephalus2 July records across all years
Orange Mycena Mycena leaiana2 July records across all years
White-Rot Fungus Trametes pubescens2 July records across all years
Oyster Mushroom Pleurotus ostreatus2 July records across all years
Northern Red Belt Fomitopsis mounceae2 July records across all years
Yellow Patches Amanita flavoconia2 July records across all years
Usually recorded in August here:
Yellow Cobweb Xenasmatella vaga2 August records across all years
Willow Glue Hydnoporia tabacina2 August records across all years
Usually recorded in September here:
Lyomyces crustosus3 September records across all years- Hardwood Trunk Rot Phellinus igniarius2 September records across all years
Orange Disco Aleurodiscus amorphus2 September records across all years
Tubulicrinis glebulosus2 September records across all years
Trechispora farinacea2 September records across all years
Too few past records in October here to list species.
Too few past records in November here to list species.
Too few past records in December here to list species.
Most-recorded species
| # | Species | Records |
|---|---|---|
| 1 | 7 | |
| 2 | 3 | |
| 3 | 3 | |
| 4 | 3 | |
| 5 | 3 | |
| 6 | 3 | |
| 7 | 3 | |
| 8 | 3 | |
| 9 | 3 | |
| 10 | 2 | |
| 11 | 2 | |
| 12 | 2 | |
| 13 | 2 | |
| 14 | 2 | |
| 15 | 2 |
Being on this list doesn't mean a mushroom is common, easy to identify or safe. It only means it has been recorded here often.
Best months to look
Records by month, all years. Busiest: Sep, Jul, Aug.
Sightings map
● Each dot is a place with at least one record (rounded to about 1 km). Locations can be approximate, and many are on private land. Numbered blue circles are recent sightings, shown only to a general area of about 10 km.
Recent sightings
The 10 most recent dated records in this county, newest first. Data as of October 26, 2026. Records can take weeks or more to reach GBIF, so the newest finds may not show yet. Places are given only as a public park or forest (from the USGS Protected Areas Database) or the nearest town, and the numbered circles on the map cover a general area, not an exact spot.
- 1Jul 25, 2026Northern Red Belt Fomitopsis mounceaein Black River Wild Forest, NY · iNaturalist photo, research grade · original record
- 2Sep 5, 2025Orange Mycena Mycena leaianain Independence River Wild Forest, NY · iNaturalist photo, research grade · original record
- 3Jul 19, 2022Yellow Patches Amanita flavoconiain Black River Wild Forest, NY · iNaturalist photo, research grade · original record
- 4
Jul 19, 2022Eastern American Platterful Mushroom Megacollybia rodmaniiin Black River Wild Forest, NY · iNaturalist photo, research grade · original record - 5
Jul 19, 2022Brown American Star-Footed Amanita Amanita brunnescensin Black River Wild Forest, NY · iNaturalist photo, research grade · original record - 6
Jul 16, 2022Tawny Grisette Amanita fulvain Herkimer County, NY · iNaturalist photo, research grade · original record - 7
Sep 29, 2021American Slippery Jack Suillus americanusnear Poland, NY · iNaturalist photo, research grade · original record - 8
Apr 9, 2021Hoof Fungus Fomes fomentariusnear Salisbury Center, NY · iNaturalist photo, research grade · original record - 9
Sep 3, 2020Pear-Shaped Puffball Apioperdon pyriformein Herkimer County, NY (location blurred by the observer) · iNaturalist photo, research grade · original record - 10
Apr 25, 2020Cryptic Globe Fungus Cryptoporus volvatusnear Ilion, NY · iNaturalist photo, research grade · original record
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How we built this page
170 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 108 CC0 and 62 CC BY 4.0. See about the data for the full citation.