Second image of begonia looking for ID. I didn't see how to include two images in the same thread.
I bought some that looks just like yours in 4 inch trays last August.
The only ID included was "Bashful Bandit" with a ? mark.
I don't know if this is any help but i've noticed no one has responded yet.
You're probably right kforrglass, i bought mine from a hobby greenhouse and it probably has lots of different juices in it.
Kind of reminds me of PHOE's Cleo. Could be Little Cleo too.
Thanks for your help with the ID. I have a small collection of begonias as house plants. I have to wait for spring to be able to mail order any new ones. I've been reading the old forum posts and dreaming about new additions.