Two months after the original picture, these seedlings are ready for separation.
The blue plant at lower left here (also pictured at 11 o'clock in the earlier picture) looks like Dudleya attenuata (some seed apparently blew in from a plant nearby) and there are two powder-dusted hybrids next to it (also visible in the earlier picture). Their presumed mother is not powder dusted, but almost all the other Dudleyas here are dusted, so that's a tipoff.
The 6 powder-dusted hybrids I was able to separate are at the right side of this tray of individually potted plants. Their paternity could potentially be pretty wide open, so it will be interesting to see how they grow up. The rest of these 15 plants (and all of the plants I threw out, maybe twice that number) look like true Dudleya brittonii.
