365Caws is now in its 16th year of publication. If I am unable to post daily, I hope readers who love the natural world and fiberarts will seize those days to read the older material. Remember that this has been my journey as well, so you may find errors in my identifications of plants. I have tried to correct them as I discover them. Likewise, I have refined fiberarts techniques and have adjusted recipes, so search by tags to find the most current information. And thank you for following me!
Showing posts with label Schizophyllum commune. Show all posts
Showing posts with label Schizophyllum commune. Show all posts
Monday, March 18, 2024
Schizophyllum Commune, Split-Gill Fungus
Day 157: If the peculiar "rotting lace" surface of Schizophyllum commune doesn't clue you in to its identity, you have only to turn over one of the fruiting bodies to examine the gills. Commonly called "Split-Gill Fungus," the lengthwise splits are easily visible with the naked eye, but here I have included a microscopic view (inset, right) so that you can see them more clearly. Schizophyllum commune is perhaps one of the most common fungi on the planet. In fact, it can be found on every continent with the exception of Antarctica. Although it is occasionally parasitic on living wood, it is primarily a decomposer, occurring on tree trunks and limbs already in the early stages of breaking down. This particular specimen gave me something to ponder. It was growing on a heavy Doug-fir limb, and the trees surrounding it for at least a hundred feet on all sides were Red Alder. How had that one limb come to be in their midst? No windstorm could have carried it there without damage being evident in the canopy. My sole theory is that it was brought in by a maintenance crew for bridge/trail repair, then left behind when it wasn't needed. In any event, Schizophyllum had found a happy home.
Thursday, January 2, 2020
Schizophyllum Commune, Split-Gill Fungus
Day 81: Park colleague and friend Yonit invited me to join her for dinner and a show to celebrate the New Year, and appropriate to the occasion, we first took a walk on the Grass Lake Nature Trail near her home in Olympia. True to form, I was stopping at every tree to look at lichens, scanning the surrounding woods for invasives, and carrying on with my typical running commentary along the one-mile loop. As we came back into the clearing at the trailhead, Yonit pointed out where a local group has been working on restoration. My eyes were immediately drawn to a white bracket fungus on a short alder stump, certain I knew what it was even from a distance of fifty feet. Sure enough, it was Schizophyllum commune, Split-Gill Fungus. The colony was well-established, so I broke off on bracket in order to show Yonit the split gills, a reproductive mechanism which I believe is peculiar to this genus. The gills open or close depending on humidity levels, thus husbanding the spores inside until enough moisture is available for them to thrive. Some experts believe that the species was introduced into Washington when infected wood was transported commercially, however the Schizophyllaceae are known world-wide with S. commune being one of the more common species. To me, this raises the question of "introduction" versus "range expansion," and I am more inclined to side with the latter option, particularly where it concerns a very prolific and adaptable fungus. But where do we draw a line, scientifically speaking? How many Scrub Jays must appear in an area previously populated only by Steller's and Greys before they are considered to have expanded their range for whatever reason (habitat loss, new food sources, etc.)? The biosphere is not a static place; it is a living laboratory. As such, it was addressed somewhat superficially in "Fantastic Fungi," the film we saw later in the day.
Brought back for another run at the Capitol Theater, "Fantastic Fungi" drew full-house crowds when it was first shown, and I have to say that the packed theater seats yesterday surprised me. It wasn't until we were about a third of the way into the film that I realized the draw was not so much curiosity about the fungal network (although that was covered rudimentarily by the film) but an interest in a specific genus, the Psilocybes. Almost a third of the documentary was devoted to the use of psilocybin, both recreationally and medically. Other "medicinal mushrooms" were covered as well, notably Turkey-tail and Lion's-mane. While the latter is easy to identify, it is relatively uncommon and I was saddened to see it being promoted as a healthful collectible. Turkey-tail, on the other hand, is not so easy to identify reliably, and while no one is likely to poison themselves by making teas of its look-alikes, the popularity of it as an alternative medicine could lead to over-collection of other shelf fungi as well as Turkey-tail itself. Based on the comments overheard from the row behind us, I got the impression that very few people in the audience had come to learn more about the fungal Kingdom and in fact probably couldn't have told a Chanterelle from a Morel if they'd been presented them side-by-side. That said, the time-lapse photography was beautiful if repetitive, and showed a range of things including fungi, sprouting seeds and flowers opening from bud. However, I was profoundly annoyed when in the middle of a sequence about mushrooms, the cinematographer had elected to include a time-lapse of a slime mold in its plasmodial form. There were no captions, so the uninformed might have assumed it was mycelium. Mycelial connections were only superficially explained, but magnificently illustrated in animated graphics. That said, I could have done without some fifteen minutes or so which were devoted to the hippie-style kaleidoscopic mandalas which were supposed to demonstrate the high attained from psilocybin. Both Yonit and I had expected the film to be more scientific and although some interesting points were made about the interconnectedness of all things via fungi, it struck me as being largely a promotion for one man's business venture. Still, the visuals were beautiful, and if I didn't learn anything in particular, at least I was entertained.
Thursday, November 28, 2019
Schizophyllum Commune, Split-Gill Fungus
Day 46: I raised my leg to step over the log, looked down to be sure I wasn't going to scrape off any lichens or moss, and there it was. "Schizophyllum commune!" I said, rather loudly for being in a quiet forest. "Well, that just made my day!" I'd already scored with an Usnea I thought was new to my Life List (see my post from the 26th), and hadn't expected to find anything else exciting along the "bunny trail" I'd decided to follow. Nisqually State Park is proving quite productive as far as botany, lichenology and mycology go. I have yet to find a new slime mold there, but we'll have to see what next year brings.
As for Schizophyllum, look closely at the top image and you'll see how it got its common name of Split-Gill Fungus. It releases its spores from splits which develop along the length of each gill when fully mature. When Schiz first starts to grow, you might pass it over as "just another bracket fungus." The young fans demonstrate zonal colouration in shades of brown. I had never observed the species in as many stages of development as this one log provided. Young brackets, looking ever so much like Turkey-tail (in honour of Thanksgiving, of course) wouldn't have given me reason to look more closely. What inspired me to explore the log more intimately was the bracket in the lower right image which is just beginning to grow its "fur" from its point of attachment. Who knew? I have not encountered a species description anywhere which covers the early growth phases in any depth. So, I give you for Thanksgiving that for which I am most grateful in my life: the joy and thrill of discovery.
Saturday, November 25, 2017
Schizophyllum Commune, Split-Gill Fungus
Day 43: Geocache aside, my best find from yesterday's exploits was Schizophyllum commune. Arguably the "world's most common fungus," I had never observed this species until a few years ago when a friend found it on her property and invited me over to identify it. Yesterday's discovery was only the second location in which I've seen it in full fruit. These specimens were a little rain-worn and not as pinkish as they would have been otherwise.
Known also as "split-gill fungus," this species' common name reflects a characteristic unusual in fungi. If you look closely, you can see that some of the ribs are split lengthwise. These "gills" open in response to wet conditions, releasing basidiospores when conditions are optimal for propagation. They close again during dry periods. New Split-Gills erupt only in the autumn; older specimens will dry out during the summer months and then rehydrate when the rainy season begins. Dry, they will resemble small grey polypores (shelf fungi), but examination of the underside with a hand lens will reveal their true identity.
Monday, November 9, 2015
The Schizophyllum Adventure
Day 27: The Schizophyllum Adventure kept me up well past bedtime last night because I was determined to solve the mystery of this fungus' identity. A friend had piqued my curiosity when she sent me photos taken during a walk on the network of trails within her acreage, photos which showed only enough detail to convince me that it was something I had never before seen. Nothing baits me as well as the unusual and mushrooms tend to be rather ephemeral (especially when the weather is rainy), so in the interests of science, I arranged to go exploring with my friend as guide.
Upon arrival at the site, we discovered multiple specimens growing along a 15' length of downed alder. The fungus was most definitely something I'd never observed, so true to form and with my eye fixed on the goal, I went straight through the nettles to get a closer look. I took photos from several different angles, and made a close visual examination, but fearing that I might miss some important detail, I took a sample in the end and tucked it safely away in a petri dish in my pocket. That moment of foresight made it possible for me to make a positive identification: Schizophyllum commune, Split-gill Fungus.
The common name tells the story. Under 10x magnification, the odd structure of this fungus' gills becomes apparent. They are truly schizoid, i.e., split into two parts longitudinally as you can see in the bottom photos. The fungus forms brackets (shelves) similar to those in the generic classification of "Oyster Mushrooms," but are exceptionally "hairy," the feature which drew my friend's attention initially.
As luck would have it, we encountered a second immature colony much closer to her house which will allow her to monitor their further development.
Subscribe to:
Comments (Atom)




