Are you thinking the last 3 pics are Habranthus robustus? I've had it in my head that they were a species of Habranthus, but they look more like a Zephranthes. I read on the Pacific Bulb Society page that Zephs hold their blooms straight up and Habranthus have that tilt at the base of the bloom. That kinda leaves me scratching my head- they are upright, but I do see a slight tilt. They have a lot of yellow showing, and all the pics I've seen of H.robustus don't show a hint of yellow, just the white throat like the first 5 pics. Whatever they are, I do enjoy them a lot- they require little care and bloom in flushes throughout the summer.