It is late December 2021 and so far winter has been warm and dry. Recent hikes have seen mostly dormant looking bracket fungi and lichens. However the day after Christmas saw extended light rains with heavy fog expected for the following day. From past experiences I knew that these conditions would result in a vibrant explosion of fungi and lichens. I also knew that trail #2 in the Indiana Dunes State Park would be a great place for a hike as a result. It is amazing how fast these organisms which reside in dead and decaying trees and humus respond to the added moisture. Here are just a few of the sights I saw on that hike.
Note, you can click on any image to view it in higher resolution. Some of the closeup images of lichens are packed with small detail.
![](https://voices.uchicago.edu/mcart/files/2021/12/State-Park-2-Fungi-122721-7-1024x682.jpg)
This is what the trail looked like on that day. Take all the fallen rotting wood and decaying leaves, give it a good soaking and let stand over night and this is the result. Perfect conditions for fungi and lichens.
![](https://voices.uchicago.edu/mcart/files/2021/12/State-Park-2-Fungi-122721-2-1024x682.jpg)
The soaked in water makes colors deeper and richer. I think it also causes the bracket fungi to perk up. The day before the rail these would have been grayish in color and more of a dried out curled up appearance. Today they appear vibrant and boasting beautiful color.
![](https://voices.uchicago.edu/mcart/files/2021/12/State-Park-2-Fungi-122721-1-1024x682.jpg)
Zoom in closely and you can see the astonishing amount of detail in the lichen which virtually covered this log.
![](https://voices.uchicago.edu/mcart/files/2021/12/State-Park-2-Fungi-122721-8-1024x682.jpg)
Many people do not realize just how much vibrant life is going on in the woods in late December. Here we see that even the smallest piece of dead wood supports a multitude of life forms while fresh green shoots arise all around it from the rich humus.
![](https://voices.uchicago.edu/mcart/files/2021/12/State-Park-2-Fungi-122721-9-1024x637.jpg)
Zooming in on part of the stick in the above image you can see the dark circular fruiting bodies erupting from the light green lichens.
![](https://voices.uchicago.edu/mcart/files/2021/12/State-Park-2-Fungi-122721-12-1024x682.jpg)
The beautiful greens, blues and reds in these fungi are popping in response to the moisture from the previous nights rains.