Duffy, is it growing very near water? Leaves look like the aquatic and emersed Bacopa monnieri. What I believe is a slightly older, more mature leaf is top middle of the picture. So the species might be wrong, but the genus is sizable and they are found around much of the world in or very near fresh water. Just a guess on my part.
Hi! Thank you for your reply to my thread. These tiny plants are growing in a very dry habitat. I thought it my be a muschio.
Reminds me of Sedum spurium. There are a lot of native sedums in Italy, but that would be an odd form.
Mr. Eric, thank for replying to my thread. Definitely not euphorbiaceae! Still a problem. I will send the photograph to my friends in the dept. Vegative biology at the L'Università. of Naples. Crassulaceae. Yes, How right you are; there are many species of Sedum in Italy. Some are not widely spread over the penisola. Some to be found only in the extreme north, some in Central Italy. Quite a few in my region which is Campania. Sedum spurium is to be found only in 2 regions in N.Italy, the regions are Lomdardia and Veneto.
The carpet of star like plants has been identified as Phedimus stellatus. In fact these tiny plants belong to the Crassulaceae family. Now I will have to return to photograph the flowers when ready!