Erwin Gruber

Enthusiast for living creatures

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  • Profile picture of Erwin Gruber who took this action.

    Erwin Gruber commented on an older version of Image of an unknown taxon:

    I may disagree this sheet to be trusted as Polystichum aculeatum (syn. P. lobatum), since it does look like true P. setiferum.

    over 1 year ago • edited: over 1 year ago

  • Profile picture of Erwin Gruber who took this action.

    Erwin Gruber commented on an older version of Image of an unknown taxon:

    I may disagree this sheet to be trusted as Polystichum aculeatum (syn. P. lobatum), since it does look like true P. setiferum.

    over 1 year ago • edited: over 1 year ago

  • Profile picture of Erwin Gruber who took this action.

    Erwin Gruber commented on an older version of Image of an unknown taxon:

    I got to disagree this sheet to show true Polystichum aculeatum, syn. P. lobatum, in fact it does look like true P. setiferum.

    over 1 year ago • edited: over 1 year ago

  • Profile picture of Erwin Gruber who took this action.

    Erwin Gruber commented on an older version of Image of an unknown taxon:

    I got to disagree this fern to be trusted as Polystichum aculeatum (L.) Roth ex Mert., since it does clearly look different. It does resemble P. setiferum in some details, still i would say it is another Polystichum sp.

    over 1 year ago

  • Profile picture of Erwin Gruber who took this action.

    Erwin Gruber commented on an older version of Image of an unknown taxon:

    Trusted pro parte: Be aware, Polystichum aculeatum being to the left, P. setiferum to the right side !

    over 1 year ago

  • Profile picture of Erwin Gruber who took this action.

    Erwin Gruber commented on an older version of Image of Polystichum aculeatum:

    Got to disagree this to be trusted as Polystichum aculeatum (L.) Roth (P. aculeatum (L.) Schott. is illeg. homonym, referring to same species since having same basionym). Do not know the current accepted name for this Polystichum sp. myself.

    over 1 year ago

  • Profile picture of Erwin Gruber who took this action.

    Erwin Gruber commented on an older version of n56_w1150:

    This delineation of some Polystichum sp. or close related genus of Dryopteridaceae was titled "Polystichum aculeatum" as were many relatet species in former times. The fern from India is clearly not European P. aculeatum.

    over 1 year ago

  • Profile picture of Erwin Gruber who took this action.

    Erwin Gruber commented on "Image of an unknown taxon":

    This image is not appropriate for any (re-) identification, thus might better be omittet. It might show Polystichum aculeatum, but as well e.g. any cultivar of P. setiferum.

    over 1 year ago

  • Profile picture of Erwin Gruber who took this action.

    Erwin Gruber commented on "Image of an unknown taxon":

    This image is not appropriate for any (re-) identification, thus might better be omittet.

    over 1 year ago

  • Profile picture of Erwin Gruber who took this action.

    Erwin Gruber commented on "Pinnules - close-up":

    Having some experience with Polystichum sp. (botanist), i may redeterminate the images of this individual to: Polystichum setiferum (Forsk.) Woynar, Soft Shield Fern. I do not see any intermediacy between P. aculeatum and P. setiferum from those images, thus i doubt it to be the hybrid Polystichum x bicknellii.

    over 1 year ago

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    Erwin Gruber commented on "In situ":

    Having some experience with Polystichum sp. (botanist), i may redeterminate the images of this individual to: Polystichum setiferum (Forsk.) Woynar, Soft Shield Fern. I do not see any intermediacy between P. aculeatum and P. setiferum from those images, thus i doubt it to be the hybrid Polystichum x bicknellii.

    over 1 year ago

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    Erwin Gruber commented on an older version of File:PolystichumLonchitis.jpg:

    This comment was deleted.

    over 1 year ago • deleted: over 1 year ago

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    Erwin Gruber commented on an older version of Polystichum lonchitis (47°47' N 15°47' E):

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    over 1 year ago • deleted: over 1 year ago

  • Profile picture of Erwin Gruber who took this action.

    Erwin Gruber commented on an older version of Polystichum lonchitis (47°47' N 15°47' E):

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    over 1 year ago • deleted: over 1 year ago

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    Erwin Gruber commented on an older version of Polystichum lonchitis_1:

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    over 1 year ago • deleted: over 1 year ago

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    Erwin Gruber commented on an older version of Polystichum lonchitis_2:

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    over 1 year ago • deleted: over 1 year ago

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    Erwin Gruber commented on an older version of Polystichum lonchitis_L1:

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    over 1 year ago • deleted: over 1 year ago

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    Erwin Gruber commented on an older version of Holly fern:

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    over 1 year ago • deleted: over 1 year ago

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    Erwin Gruber commented on an older version of Holly fern and sori:

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    over 1 year ago • deleted: over 1 year ago

  • Profile picture of Erwin Gruber who took this action.

    Erwin Gruber commented on an older version of Holly fern:

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    over 1 year ago • deleted: over 1 year ago