Another Tiny Flower

Again I cannot identify this flower.  It is another blooming ground cover about 1/2 an inch in size.  The petals are closed on all the hundreds of blooms I saw so evidently they do not open but do turn whiter as they age.

Nikon D700, 60mm macro lens atf 5.6 and 1/160th, ISO 200

Tiny Australian Violet

This tiny flower is blooming in a ground cover at my parent's house. The bloom is only about half of an inch in size and looks like a violet to me, but I am not sure.  My mom is out of town or I would ask her!

Nikon D700, 60mm macro lens at f7.1 and 1/125th, ISO 200

Frame added as a layer and masked off of the center.