Mushrooms in Knox County, Maine
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:
Black Witch's Butter Exidia glandulosa2 May records across all years
Usually recorded in June here:
- Brittlegills Russula uncialis2 June records since 2011
Too few past records in July here to list species.
Usually recorded in August here:
Zoned Tooth Hydnellum concrescens4 August records across all years
Chalciporus rubinellus2 August records across all years
Orange Rough-Cap Tooth Hydnellum aurantiacum2 August records across all years
Spruce Tooth Phellodon violascens2 August records across all years
Usually recorded in September here:
- Melanoleuca gravis3 September records across all years
Bleeding Tooth Fungus Hydnellum peckii2 September records across all years
Woolly Tooth Phellodon tomentosus2 September records across all years
Ghost Bolete Leccinum holopus2 September records across all years
Orange-Gilled Waxycap Humidicutis marginata2 September records across all years
Usually recorded in October here:
Brown Cubical Rot Of Birch Fomitopsis betulina3 October records across all years
Purplepore Bracket Trichaptum abietinum2 October records across all years- Resinoporia crassa2 October records across all years
Hoof Fungus Fomes fomentarius2 October records across all years
Too few past records in November here to list species.
Usually recorded in December here:
- Brown Cubical Rot Of Birch Fomitopsis betulina2 December records since 2011
Most-recorded species
| # | Species | Records |
|---|---|---|
| 1 | 7 | |
| 2 | 5 | |
| 3 | 4 | |
| 4 | 3 | |
| 5 | 3 | |
| 6 | 3 | |
| 7 | 2 | |
| 8 | Boletinus glandulosus | 2 |
| 9 | 2 | |
| 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: Aug, Sep, Oct.
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 9 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.
- 1
Jul 21, 2026Berkeley's Polypore Bondarzewia berkeleyinear Camden, ME · iNaturalist photo, research grade · original record - 2
Nov 28, 2025Northern Red Belt Fomitopsis mounceaein Birch Point State Park, ME · iNaturalist photo, research grade · original record - 3Aug 10, 2025Inocybe moravicanear Rockland, ME · museum/herbarium specimen · original record
- 4Dec 26, 2024Brown Cubical Rot Of Birch Fomitopsis betulinain Beech Hill, ME · iNaturalist photo, research grade · original record
- 5
Dec 25, 2024Brown-Toothed Crust Fungus Hydnoporia olivaceanear Rockport, ME · iNaturalist photo, research grade · original record - 6Oct 16, 2024Hoof Fungus Fomes fomentariusnear Camden, ME · iNaturalist photo, research grade · original record
- 7Oct 16, 2024Hoof Fungus Fomes fomentariusnear Camden, ME · iNaturalist photo, research grade · original record
- 8Oct 16, 2024Brown Cubical Rot Of Birch Fomitopsis betulinanear Camden, ME · iNaturalist photo, research grade · original record
- 9
Oct 16, 2024Crowded Parchment Stereum complicatumnear Camden, ME · iNaturalist photo, research grade · original record
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How we built this page
109 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 76 CC0 and 33 CC BY 4.0. See about the data for the full citation.