kcf32's picture

Lords and Ladies 2011-02-24

Observed: 24th February 2011 By: kcf32
S159 Neighbourhood Nature - course completeShropshire Wildlife Trust
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Lords and Ladies 2011-02-24 (1)
Lords and Ladies 2011-02-24
Description:

Leaves of Lords and Ladies with and without black spots. growing close to the bank of a stream. Is there an explanation of why some plants have spotted leaves and other do not?

Identifications
Species interactions

No interactions present.

Comments

leenestofvipers's picture

spotted or not

The spotting is due to anthocynanin production in the plant. Spotted plants are in general less frequent as you go north and eastward.

kcf32's picture

Spots

Thank you for the explanation. And following the example of most three-year olds I should ask why some plants produce anthocyanin and others do not and why the geographic variation!

Keith

Roger Gilbert's picture

Thank you .....

kcf32 for asking the question and leenestofvipers for the info. That's what I was wondering when I posted http://www.ispot.org.uk/node/115377?nav=search

Howardian Local Nature Reserve
http://www.howardianlnr.org.uk

anonymous spotter's picture

Anthocyanins -

There is a good introduction in Wikipedia -
http://en.wikipedia.org/wiki/Anthocyanin
One of the theories I found (I asked this question when another person posted an observation a while back: no response, so I did a bit of digging)is mentioned therein; that it is a sort of "sun screen" for the leaves. So the further north, the less need.

kcf32's picture

Anthocyanins

Thank you I have now had a look at Wikipedia.

Keith