We’ve been experiencing unseasonably cool temperatures here in Southern Ontario. I wonder how much that will affect the timing of the fruiting of morels this season. I wish I had a better understanding of the triggers that cause various mushrooms to appear. Is the primary driver temperature? Or perhaps it has more to do with hours of available daylight? Moisture content is clearly important but how do all the factors fit together? I have some understanding of some of the relationships between certain mushrooms and certain trees, but as far as mushrooms go, I haven’t been at it long enough to really have a good feel for the timing.
In my little brain, I associate the fruiting of morels with the emergence of a mayfly called Ephemerella subvaria, the famous Hendrickson. But that’s merely a casual observation and I don’t know if it really holds true. It would be very interesting to document those relationships over time. I know that some people have studied the relationship between mayfly emergences and the seasonal blooming of various plants. That’s what Bob Scammel’s The Phenological Fly is all about. I don’t know if anyone has studied the relationship between fruiting of fungi and mayfly emergence. Both mayflies and mushrooms have an order if not a precise schedule. I think it would be a lot of fun to spend a few hours every day for a season in the forests and on the streams, observing, photographing, documenting. I think my dogs would enjoy that too!