Originally Posted By: Caoimh?n P. Connell
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Good morning, Steven!
I hope you had a bountiful Thanksgiving Day. Does this look familiar?
Without actually looking at the whole thing, I can only guess of course, but here are some initial thoughts. The black ?stringers? appear to be the older, possibly inactive versions of the following ? this is what they look like when they are active:
Eventually, they can form full-blown mycelial mats that can cover thousands of square feet, and look like this.
Ultimately, they can produce a fruiting body that looks like this:
So three guesses on your critter come to mind, by I am going to suggest a species from the genus Serpula
, and probably S. lacrymans
the common cause of dry rot. I will speculate that since it is black, it is inactive; but it might just be old and active (kind of like me?). However, this organism, if it is S. lacrymans
it can cause devastating damage to wood. Here?s a photo of what can be needed:
The source of the moisture can be ten meters or more from the location of the growth, so don?t let that fool you. S. lacrymans can transport its moisture need considerable distances, and grow on wood that is otherwise completely dry (thus its name).
Now as to age.. trickier question, but you can age the thing by looking for cellulosic items that have a definite time period and see it the mycelia has invaded that item ? that is the best general way to date the growth.
Just a thought of course ? I could be completely wrong!
Caoimh?n P. Connell
Forensic Industrial Hygienist
(The opinions expressed here are exclusively my personal opinions and do not necessarily reflect my professional opinion, opinion of my employer, agency, peers, or professional affiliates. The above post is for information only and does not reflect professional advice and is not intended to supercede the professional advice of others.)