Fungus Among Us

Lactarius xanthogalactus

Help us create a searchable checklist of fungi by taking photos and submitting to

1.  Walk the trails and look for of any lichen or mushroom you see. Lichen are visible year-round. Mushrooms are visible in the rainy season.

2. Take a photo that collectively shows the cap (top, also called pileus), gills (underside of the cap), and stipe (stem/stalk) of the mushroom. If you find lichens or other fungi, take those images and submit them as well. The more images there are, the more identifiable they will be. Do not collect mushrooms or other fungi, and do not eat anything you find at the refuge, even if you feel it is safe. 

3.  Go to and click "create and account." Create a password and username.

4.  Select “create observation,” entering the location.
For fungi around Fremont, use Don Edwards San Francisco Bay NWR, Fremont, CA, USA
For fungi around Alviso, use: Don Edwards San Francisco Bay NWR EEC, Santa Clara Co., CA, USA
Please use the locations listed as they have already been created and will keep the data together.

5.  Upload your images and write down information about the observation in the notes section.

6.  Submit! You do not need to suggest a name if you do not know what it is.  

Information that can be useful in identifying fungi includes what it is growing on and if there is any aroma to it. The aroma can be faint. Fungi may be growing from logs, posts, rocks, wood chips, in grass, under oaks, on bark, or elsewhere. Look closely and you will see the world come alive!  

Thank you for your participation!

Examples of common fungi

Lichen  Vovopluteus gloiocephalus Poison Pie Oak Elfin Saddle

Clockwise: Lichen, Vovopluteus gloiocephalus, Poison Pie, Oak Elfin Saddle

Top photo - Lactarius xanthogalactus