These are kinda neat, hadn’t seen an Inocybe like these before. They are similar to the I. lanatodisca I found a few months ago, and were found close to the same spot, only about 20 feet away. But these are lighter in color, more umbonate, and with thiner flesh in the cap. Not sure if that is enough to say they are a different species, maybe like the coccora, there is a darker fall species, and these are the lighter spring species.
But they have the same feature, that they come up with a white cottony universal veil, that splits up as it grows into patches of white on the cap.
If you had the material, one could make a squash mount of a gill and confirm the absence of metuloids, if in the I. maculata complex. If metuloids were present on the gills, then you’d have to examine the stipe surface for the distribution of metuloids on the stipe. Given the photo, I can’t quite tell about the stipe surface. If metuloids were present throughout the stipe, then overall the stipe surface should have a “pruinose” appearance. If you collect it again, keep it!
If you see the collection again, make a voucher! If the material reminds you of I. lanatodisca but different, then it could be in the I. maculata complex, of which I. lanatodisca I would consider a member. I’ve seen brown forms with the velar patches on the pileus, and an ochraceous form with velar patches too, only 50 meters apart or so, but associated with different trees (Fagaceae versus Tilia) in New York state. At the DNA level, I. lanatodisca is quite distinct from other members of the complex. And the two forms of maculata from New York are quite different from each other too! Note the smell on future collections. I think of I. lanatodisca as having quite a pleasant odor. From what I recall, European I. maculata may have a truffle-like odor.
Created: 2007-03-28 08:44:19 PDT (-0700)
Last modified: 2007-03-28 14:15:57 PDT (-0700)
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