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Photo © ragnarok, some rights reserved
Waipoua Kauri Forest 0376, Neuseeland (Google, OSM) Details Hide details

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Help with ID please. How to separate from C. minor?

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Caladenia chlorostyla - Photo (c) memopob, some rights reserved (CC BY-NC), uploaded by memopob
ragnarok's ID: Caladenia chlorostyla, a member of orchids (Family Orchidaceae)
Posted by ragnarok 3 months ago (Flag)
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Caladenia chlorostyla - Photo (c) memopob, some rights reserved (CC BY-NC), uploaded by memopob
bill-nz's ID: Caladenia chlorostyla, a member of orchids (Family Orchidaceae)
Posted by bill-nz 3 months ago (Flag)
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Although there is continued debate as to what actually constitutes Caladenia minor, it would appear that the majority of the specimens we observe in Northland fit the recognised description of C. minor better than they do the description of C. chlorostyla. C. chlorostyla does not have the red glandular flecking on the upper side of the dorsal sepal that C. minor has. This is the main distinguishing feature, which unfortunately is not able to be checked in your image. It is recommended that you photograph Caladenia species from the front, side and rear to capture all the distinguishing features.

Posted by bill-nz 3 months ago (Flag)
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Thanks for your reply, Bill. I added another photo I took, to have a little bit more of a side view. Maybe it helps.

Posted by ragnarok 2 months ago (Flag)
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It's the upper side of the dorsal sepal that's most telling when trying to determine whether you are looking at C. chlorostyla or C. minor (as we now understand it to be). The early botanists made a few mistakes along the way (as we all do), so there have been a number of red herrings in the mix over the years in relation to what constitutes C. minor. The bottom line is that if the upper surface of the dorsal sepal is completely green you are looking at C. chlorostyla and if it appears to be speckled or tinged with red you are almost certainly looking at C minor. Your specimen appears more likely to be C. chlorostyla but it is not possible to be certain of this ID from the images available.

Posted by bill-nz 2 months ago (Flag)
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Thanks again, Bill! I also found a Caladenia species in Whanganui NP. This one looks very similar, but the colour of the stem is red instead of green. Is this variability normal or could it be another species? Ill upload it as a new observation.

Posted by ragnarok 2 months ago (Flag)
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Caladenia chlorostyla - Photo (c) memopob, some rights reserved (CC BY-NC), uploaded by memopob
ragnarok's ID: Caladenia chlorostyla, a member of orchids (Family Orchidaceae)
Caladenia chlorostyla - Photo (c) memopob, some rights reserved (CC BY-NC), uploaded by memopob
Community ID: Caladenia chlorostyla, a member of orchids (Family Orchidaceae)
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