Mushrooms in Porter County, Indiana
Updated October 2026 · from open GBIF records
2,186mushroom records
504species recorded
Augbusiest month
2,186 records since 1900 (221 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.
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.
Usually recorded in April here:
Dryad's Saddle Cerioporus squamosus3 April records across all years
Brown Cubical Rot Of Birch Fomitopsis betulina2 April records across all years
Smoky Bracket Bjerkandera adusta2 April records across all years
Usually recorded in May here:
Common Porecrust, Split Gill Fungus Schizophyllum commune3 May records across all years
Milk-White Toothed Polypore Irpex lacteus3 May records across all years
Turkeytail Trametes versicolor2 May records across all years
Crown-Tipped Coral Artomyces pyxidatus2 May records across all years
Spring Polypore Lentinus arcularius2 May records across all years
Trametes membranacea2 May records across all years- Dryad's Saddle Cerioporus squamosus2 May records across all years
Brown-Toothed Crust Fungus Hydnoporia olivacea2 May records across all years
Usually recorded in June here:
Gymnopus subsulphureus4 June records across all years
European Platterful Mushroom Megacollybia platyphylla3 June records across all years
Resupinatus alboniger2 June records across all years
Oyster Mushroom Pleurotus ostreatus2 June records across all years
Bark Mycena Mycena corticola2 June records across all years
Umber-Brown Puffball Lycoperdon umbrinum2 June records across all years
Ceramic Parchment Xylobolus frustulatus2 June records across all years
Ochre Spreading Tooth Steccherinum ochraceum2 June records across all years
Hairy-Stalked Collybia Gymnopus spongiosus2 June records across all years- Turkeytail Trametes versicolor2 June records across all years
- Fungi Pallidohirschioporus biformis2 June records across all years
Rusty Porecrust Fuscoporia ferruginosa2 June records across all years
Usually recorded in July here:
Cinnamon Bracket Hapalopilus rutilans11 July records across all years- Fungi Pallidohirschioporus biformis9 July records across all years
- Turkeytail Trametes versicolor9 July records across all years
- Ochre Spreading Tooth Steccherinum ochraceum8 July records across all years
Deer Mushroom Pluteus cervinus7 July records across all years
Yellow Patches Amanita flavoconia7 July records across all years
Blue Lactarius Lactarius indigo7 July records across all years
False Turkey-Tail Stereum ostrea6 July records across all years
Split Fibrecap Pseudosperma rimosum6 July records across all years
Goblet Waxcap Hygrocybe cantharellus5 July records across all years
Elegant Polypore Cerioporus varius5 July records across all years
Amethyst Deceiver Laccaria amethystina5 July records across all years
Usually recorded in August here:
- Blue Lactarius Lactarius indigo6 August records since 2011
Violet Gray Bolete Tylopilus plumbeoviolaceus4 August records since 2011
Apple Bolete Exsudoporus frostii4 August records since 2011
Byssomerulius incarnatus3 August records since 2011
Cornflower Bolete Gyroporus cyanescens3 August records since 2011
Pick-A-Back Toadstool Asterophora lycoperdoides3 August records since 2011
Appalachian Spindle Clavulinopsis appalachiensis2 August records since 2011
Chicken Of The Woods Laetiporus sulphureus2 August records since 2011
Lactarius hygrophoroides2 August records since 2011
Ringless Honey Mushroom Desarmillaria caespitosa2 August records since 2011
Pallid Bolete Imleria pallida2 August records since 2011
Hazel Bracket Skeletocutis semipileata2 August records since 2011
Usually recorded in September here:
Leopard Earthball Scleroderma areolatum6 September records across all years
Golden Bracket Fuscoporia gilva5 September records across all years
Common Puffball Lycoperdon perlatum5 September records across all years- Turkeytail Trametes versicolor5 September records across all years
Tawny Grisette Amanita fulva5 September records across all years
Aniseed Funnel Clitocybe odora5 September records across all years- Split Fibrecap Pseudosperma rimosum4 September records across all years
Chestnut Bolete Gyroporus castaneus4 September records across all years
Charcoal Burner Russula cyanoxantha4 September records across all years
Thelephora anthocephala4 September records across all years- Milk-White Toothed Polypore Irpex lacteus4 September records across all years
Shield Dapperling Lepiota clypeolaria4 September records across all years
Usually recorded in October here:
Bulbous Honey Fungus Armillaria gallica6 October records across all years
White Fibrecap Inocybe geophylla6 October records across all years
Aborted Entoloma, Shrimp Of The Woods Entoloma abortivum5 October records across all years
Hen Of The Woods Grifola frondosa5 October records across all years- Stump Puffball Lycoperdon pyriforme4 October records across all years
Wood Blewit Lepista nuda4 October records across all years
Ghost Bolete Leccinum holopus4 October records across all years- Armillaria calvescens4 October records across all years
Blackish-Red Russula Russula vinacea3 October records across all years- Brown Cubical Rot Of Birch Fomitopsis betulina3 October records across all years
Brick Cap Hypholoma lateritium3 October records across all years- Byssomerulius incarnatus3 October records across all years
Usually recorded in November here:
Velvet Shank Flammulina velutipes3 November records across all years- Brown Cubical Rot Of Birch Fomitopsis betulina3 November records across all years
Too few past records in December here to list species.
⚠ 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 | 28 | |
| 2 | 25 | |
| 3 | 25 | |
| 4 | 21 | |
| 5 | 21 | |
| 6 | 21 | |
| 7 | 21 | |
| 8 | 19 | |
| 9 | 19 | |
| 10 | 19 | |
| 11 | 18 | |
| 12 | 17 | |
| 13 | 17 | |
| 14 | 17 | |
| 15 | 16 |
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, Jul, Sep.
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.
- 1Aug 23, 2026Blue Lactarius Lactarius indigonear Portage, IN · iNaturalist photo, research grade · original record
- 2Aug 19, 2026Turkeytail Trametes versicolornear Dune Acres, IN · iNaturalist photo, research grade · original record
- 3Aug 8, 2026Byssomerulius incarnatusin Indiana Dunes State Park, IN · iNaturalist photo, research grade · original record
- 4Aug 8, 2026Cornflower Bolete Gyroporus cyanescensin Indiana Dunes State Park, IN · iNaturalist photo, research grade · original record
- 5Jul 18, 2026Blue Lactarius Lactarius indigoin Dunes Nature Preserve, IN · iNaturalist photo, research grade · original record
- 6Jul 18, 2026Apple Bolete Exsudoporus frostiiin Dunes Nature Preserve, IN · iNaturalist photo, research grade · original record
- 7
Jun 27, 2026Pholiota polychroain Dunes Nature Preserve, IN · iNaturalist photo, research grade · original record - 8
Jun 27, 2026Devil's Dipstick Mutinus elegansnear Chesterton, IN (location blurred by the observer) · iNaturalist photo, research grade · original record - 9
Jun 27, 2026Spotted Bolete Xanthoconium affinein Dunes Nature Preserve, IN · 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
2,186 records of mushrooms, shelf fungi and polypores (class Agaricomycetes) that fall inside this county's Census boundary. Licenses: 2,073 CC0 and 113 CC BY 4.0. See about the data for the full citation.