Mushrooms in Ontario County, New York
Updated October 2026 · from open GBIF records
819mushroom records
340species recorded
Sepbusiest month
819 records since 1888 (266 in the last 10 years)
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.
Usually recorded in January here:
Milk-White Toothed Polypore Irpex lacteus2 January records across all years
Usually recorded in February here:
Cultivated Mushroom Agaricus bisporus3 February records across all years
Lumpy Bracket Trametes gibbosa3 February records across all years- Hyphodontia spathulata2 February records across all years
Silky Parchment Stereum striatum2 February records across all years
Usually recorded in March here:
- Cultivated Mushroom Agaricus bisporus3 March records across all years
Velvet Shank Flammulina velutipes3 March records across all years
Blushing Bracket Daedaleopsis confragosa2 March records across all years
Too few past records in April here to list species.
Usually recorded in May here:
- Hebeloma velatum3 May records across all years
Dryad's Saddle Cerioporus squamosus3 May records across all years- Acanthophysium oakesii2 May records across all years
Alcohol Inky Cap Coprinopsis atramentaria2 May records across all years- Parasola conopila2 May records across all years
Round Puffball Bovista pila2 May records across all years
Collared Earthstar Geastrum triplex2 May records across all years
Usually recorded in June here:
- Lachnella tiliae3 June records across all years
Common Conecap Conocybe tenera3 June records across all years- Panus rudis3 June records across all years
- Milk-White Toothed Polypore Irpex lacteus2 June records across all years
Phanerochaete sordida2 June records across all years
Petticoat Mottlegill Panaeolus papilionaceus2 June records across all years
Conifer Mazegill Gloeophyllum sepiarium2 June records across all years
Scaly Sawgill Neolentinus lepideus2 June records across all years
Split Porecrust Schizopora paradoxa2 June records across all years
Usually recorded in July here:
Hymenopellis radicata4 July records across all years
Dung Bird's Nest Cyathus stercoreus2 July records across all years
Old Man Of The Woods Strobilomyces strobilaceus2 July records across all years
Fluted Bird's Nest Cyathus striatus2 July records across all years
Black Witch's Butter Exidia glandulosa2 July records across all years- Typhula variabilis2 July records across all years
- Agrocybe vermiflua2 July records across all years
- Leucocoprinus rubrotinctus2 July records across all years
- Poronidulus conchifer2 July records across all years
- Clitocybe multiceps2 July records across all years
Jack O Lantern Omphalotus illudens2 July records across all years
Usually recorded in August here:
Peniophora cinerea5 August records across all years
Brown Patch Disease Rhizoctonia solani4 August records across all years
Laddered Webcrust Hyphoderma setigerum4 August records across all years
Oxyporus obducens4 August records across all years
Mossy Maze Polypore Cerrena unicolor3 August records across all years
Jellied False Coral Sebacina schweinitzii3 August records across all years
Rosy Crust Peniophora incarnata2 August records across all years
Tubulicrinis glebulosus2 August records across all years
Cylindrobasidium evolvens2 August records across all years- Milk-White Toothed Polypore Irpex lacteus2 August records across all years
- Fluted Bird's Nest Cyathus striatus2 August records across all years
- Rhizomorpha subcorticalis2 August records across all years
Usually recorded in September here:
Purple-And-White Deceiver Laccaria ochropurpurea4 September records since 2011
Chicken Of The Woods Laetiporus sulphureus4 September records since 2011
Common Puffball Lycoperdon perlatum4 September records since 2011
Pear-Shaped Puffball Apioperdon pyriforme3 September records since 2011
Orange Mycena Mycena leaiana3 September records since 2011
Hymenopellis furfuracea3 September records since 2011
Asian Beauty Radulomyces copelandii2 September records since 2011
Turkeytail Trametes versicolor2 September records since 2011
Black Trumpet Craterellus cornucopioides2 September records since 2011
Honey Fungus Armillaria mellea2 September records since 2011
Flaming Scalycap Pholiota flammans2 September records since 2011- Blushing Bracket Daedaleopsis confragosa2 September records since 2011
Usually recorded in October here:
Bitter Oysterling Panellus stipticus3 October records since 2011
Wood Blewit Lepista nuda2 October records since 2011
Common Porecrust, Split Gill Fungus Schizophyllum commune2 October records since 2011- Birch Mazegill, Gilled Polypore Lenzites betulinus2 October records since 2011
Late Fall Oyster Mushroom Sarcomyxa serotina2 October records since 2011
Mock Oyster Mushroom Phyllotopsis nidulans2 October records since 2011
Ceramic Parchment Xylobolus frustulatus2 October records since 2011- Jack O Lantern Omphalotus illudens2 October records since 2011
Usually recorded in November here:
Cat's Tongue Pseudohydnum gelatinosum2 November records since 2011- Blushing Bracket Daedaleopsis confragosa2 November records since 2011
- Lumpy Bracket Trametes gibbosa2 November records since 2011
- Ceramic Parchment Xylobolus frustulatus2 November records since 2011
Smoky Bracket Bjerkandera adusta2 November records since 2011- Late Fall Oyster Mushroom Sarcomyxa serotina2 November records since 2011
Phellinus robiniae2 November records since 2011
Usually recorded in December here:
Red Tree Brain Fungus Peniophora rufa4 December records across all years
Jelly Rot Phlebia tremellosa3 December records across all years- Fungi Pallidohirschioporus biformis3 December records across all years
Crystal Brain Fungus Myxarium nucleatum2 December records across all years- Turkeytail Trametes versicolor2 December records across all years
⚠ Never eat a wild mushroom based on this site. We show where fungi have been recorded, nothing more. We never say any mushroom is edible or safe, and you shouldn't decide that from any website, app or photo. Many deadly mushrooms look like harmless ones. If someone may have eaten a wild mushroom, call Poison Control at 1-800-222-1222 right away.
Most-recorded species
| # | Species | Records |
|---|---|---|
| 1 | 11 | |
| 2 | 11 | |
| 3 | 11 | |
| 4 | 10 | |
| 5 | 9 | |
| 6 | 9 | |
| 7 | 9 | |
| 8 | 9 | |
| 9 | 8 | |
| 10 | 8 | |
| 11 | 8 | |
| 12 | 7 | |
| 13 | 7 | |
| 14 | 7 | |
| 15 | 7 |
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, Oct, 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.
- 1Oct 4, 2026Birch Mazegill, Gilled Polypore Lenzites betulinusnear Geneva, NY · iNaturalist photo, research grade · original record
- 2Sep 20, 2026Chicken Of The Woods Laetiporus sulphureusnear Honeoye, NY · iNaturalist photo, research grade · original record
- 3
Sep 20, 2026Veiled Oyster Pleurotus dryinusnear Honeoye, NY · iNaturalist photo, research grade · original record - 4Sep 20, 2026Cortinarius squamivenetoideusnear Honeoye, NY · iNaturalist photo, research grade · original record
- 5
Sep 19, 2026Giant Puffball Calvatia giganteanear Shortsville, NY · iNaturalist photo, research grade · original record - 6
Aug 2, 2026Hoof Fungus Fomes fomentariusnear Honeoye, NY · iNaturalist photo, research grade · original record - 7Aug 2, 2026Chicken Of The Woods Laetiporus sulphureusnear Honeoye, NY (location blurred by the observer) · iNaturalist photo, research grade · original record
- 8
Aug 2, 2026Common Collybia Gymnopus dryophilusnear Honeoye, NY · iNaturalist photo, research grade · original record - 9Aug 2, 2026Fuscoboletinus weaveraenear Honeoye, NY · iNaturalist photo, research grade · original record
- 10Jul 31, 2026Jack O Lantern Omphalotus illudensnear Naples, NY · iNaturalist photo, research grade · original record
Many sightings are on private land. Always get the landowner's permission, and follow the rules of parks and forests, which often limit or ban collecting.
Bring along
🍄
Regional mushroom field guideSee on Amazon🍄
Folding mushroom knife with brushSee on Amazon🍄
Wicker foraging basketSee on Amazon🍄
10x hand lens / loupeSee on Amazon🍄
Spore print paperSee on AmazonAs an Amazon Associate we earn from qualifying purchases.
How we built this page
819 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 627 CC0 and 192 CC BY 4.0. See about the data for the full citation.