365Caws is now in its 14th year of publication, and was originally intended to end after 365 days. It has sometimes been difficult for me to find new material, particularly during the winter months, but now as I enter my own twilight years, I cannot guarantee that I will be able to provide daily posts. It is my hope that along the way I may have inspired someone to a greater curiosity about the natural world. If so, I can rest, content in the knowledge that my work here has been done.
Saturday, February 11, 2023
Backyard Mystery
Day 121: I'll give you the punchline first: I have no idea what this is, although I think I can safely say it's a lichen. The shape suggest that it's a Cladonia, and the broken upper cortex (the outer layer of the thallus) would seem to support that assumption. However, the algal layer is poorly developed, making it almost snow-white. At first I thought it might have been fungal because I thought I was observing peridioles in the cup. At least that's what they looked like through the camera lens, but I was not satisfied that I was seeing them, so I went back in the house for a magnifier. I never think to grab a kneeling pad when I'm excited about finding something strange. No, I went back out and knelt right down in the soggy, cold moss so that I could put my eye to the glass for an up-close-and-personal look. The inner surface appeared grainy...oh, you know...like broken lichen cortex, d'uh!...and then I looked further down the stipe where the lower cortex was revealed in reddish patches. But muddy knees couldn't pay a better dividend than that. I will simply have to keep an eye on the area over the next few weeks to see how it matures. Oh, by the way, if you're ever over for a visit, don't disturb any of the little stakes poking up in various places around my yard. Those are markers telling me I need to follow up.
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