One of my very favorite Mexican Pinguicula species --> Pinguicula gypsicola.
I began growing this species when I received a small portion that had been grown in tissue culture. At first I attempted to grow them in 100% granular peat moss, and though they survived, they certainly were not vigorous or healthy. I also managed to propagate some with leaf-pullings, though when I first began growing them, all my plants had leaves that were so pale as to be almost white (including the propagules), and they never bloomed.
After trying several media variations and other horticulture tricks (theory of limiting factors), I finally succeeded in growing larger, healthier looking plants, and getting one to bloom, in fact the one in the photo above was the first one I induced into bloom.
Here is a link showing what my plants looked like when I first started growing them. Here is a page showing what some looked like in some later experiments. Another nice specimen is here.
They can look real good when they bloom, too -->
Despite my neglect due to health issues these past four years, several of them have survived and are quickly recovering. I anxiously await their achieving full health and for them to begin blooming, again and for me to begin propagating them again.