Aug 25, 2016

Dyckia encholirioides var. Praia do Forte-Itaguaçu, North este Santa Catarina

Some of the plants in a Dyckia encholirioides population on a rocky promontory close to the sea were shining yellow and they were followed for years and they continue to be yellow.
They only got greenish during midwinter when the sun is less fiery and the days are shorter.
It seems this is a mechanism to compensate the poorer sun exposition.
Here some pictures show a divided plant. the one which face North (here is south hemisphere) gets the better sun exposition so you can see the difference.
If a plant has no xantic phase it will never show any yellowish.
This is also observed amid some Encholirium plants.


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