I found this lovely plant in the local botanical garden,
It looks like a Commelina sp. or related in the same family, I couldn't find any match on the web..the leaves are kind of special with the spots..

This is only a guess. Commelina fasciculata
The spots on the leaves may be a kind of fungus.

Have a look at Tinantia pringlei...a much better guess.

There is a photo here:
http://sarahpdukegardens.blogs...

That is THE one Greene! You got it right so fast!

The botanical name is Tinantia pringlei.
https://www.google.be/search?q...
Oops Greene, I see now you had already given the botanical name, I had overlooked it by going straight to your link..

I've got this plant Myriam, I believe I've offered you some before.

Mine came from Cotswold Garden Flowers named Tinantia pringlei coll. #A1M-77. a collection from Mexico.

http://www.plantdelights.com/T...

http://www.cgf.net/plants.aspx...

that is the page i found the botanical name Janet!
Oh I don't remember you had been offering this plant, but anyhow, I took a little piece and it looks like an easy plant to grow!

It spreads extremely well in a well drained shady spot Myriam, I get plants growing in pots too.

Cross-posted!
Amazing being a plant from Mexico to be hardy in our climats..

Shady and well-drained spots enough in my garden, Janet, thanks!

It is such a pretty and interesting plant.
bonitin,
Please consider adding your photos to the ATP database for the plant.
And thanks for the acorn tip.

Yes it sure is an interesting and pretty plant Greene! I had never seen it before.
Of course I'll add the photos to our database.