5 responses to “Ptychomitrium incurvum”

  1. Pygge

    That is a great photo! Anyone that tried to take a nice pic of a moss knows how hard it is.

  2. Marilyn Brown

    What a lovely lot of descriptive words — incurved, grizzled, extirpated, calcareous — not to mention the bits of words, such as ptyx and mitra. And the photograph is completely charming ! Thanks always, Daniel.

  3. Lynn Wohlers

    This is a great photo of – dare I say it? – a very cute moss. The incurved green parts and the sprightly capsules are fascinating to see up close. Thank you!

  4. Jane Doty

    Great to see something interesting from my home state of OHIO.

  5. David D.

    Fascinating. I’ve seen this on Ontario’s extirpated list but never knew much about it. Excellent to see a nice photo of it as well (and from a reliable source).

    I have to wonder if this moss simply has a difficulty with dispersing back into habitat that has been altered – its habitat, while generic, may have been older-growth or less-disturbed forests with a legacy of ongoing regional canopy cover extending back for centuries or millennia. This would be a significant problem concerning its persistence.

    As a botanist and a student of natural history in Ontario, it is painfully clear how much we eviscerated the natural features in the southern part of the province (ironically, the most diverse area botanically). Many places were cleared to nearly flat-as-a-pancake conditions, which at one point led to runaway erosion and flooding problems (and spawned the creation of our Conservation Authorities). We lost a great many plant and animal species to a combination of extensive farming/land clearing, overzealous timber harvesting and swamp draining, which drastically changed our landscape. The forest floor ecology has also changed drastically, with leaf litter accumulation being a shadow of its former self due to the introduction of earthworms. Very few areas in southern ontario could be considered old-growth, and the remaining woodlots vary greatly from gorgeous and +/-pristine to drastically altered and filled with invasive species. Furthermore, we have lost/are losing a plethora of trees – American Chestnut, American Beech, Ash, Elm (to an extent), to name a few. Any species requiring long-term forest cover conditions with formerly-abundant species is at a disadvantage.

    While part of me hopes that the re-discovery of this moss hasn’t occurred due to the rarity of field bryologists in general, another part of me suspects that its disappearance fits the larger pattern of species disappearance due to habitat destruction in our area. Nonetheless, I’ll have to keep my eyes peeled!

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