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Can anyone tell me please why some examples have black markings and others do not ?
Chris Brooks - www.dragonfly-images.co.uk
My Flickr site - www.flickr.com/photos/ceb1298
Good Question I think early in the season the leaves have spots facilitated by the roots and later toward November these are lost ?? and as such the plant is not so much different but changing through out the year Italian Lords and Ladies differ. Flowers are tiny The pollinators are known to be mainly flies of the family Psychodidae, known as Owl Midges. AKA Cuckoo Pint
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I think it is just part of the natural variation in the species, like some people have freckles. The unspotted form can be called Arum maculatum forma immaculatum (Schott) Engler (var immaculatum Mutel).
Thanks cicuta58, that name is quite a mouthful, all noted.
Chris - In the event you are going on a very long train journey :-) :-) the PDF covers the forms and their distribution The original observation being raised in 1903. I has often wondered about spots .
Here is a link on the forms
The original 1903 Work
Thanks Colin, I'll save that one for a rainy day, don't do trains as they make me feel ill.
I have not just found spotted ones but also one or two with spots that are also dimples. The photo of the under side of the leaf did not come out well. I will have to visit one of them again.
They look like Tar Spot on Sycamore.
The dimple spotted form i have found on my patch.
Lat/Lng: 51.2, -1.0
OS grid ref: SU7451