Petrocosmea and ramonda come to mind. Some (at least) of the Chirita/Primulina have done well for me in colder rooms. Heck, my streps are probably living that life too and actually do better for me than in the warmer months.

Sinningia would survive best as a dormant bulb at that temperatures (ie summer growing and winter dormant).

When Irina stumbles across the thread, she'll probably have more ideas.

In my mind the petrocosmea are absolutely adorable darlings, the chiritas have lovely foliage (as well as flowers occassionally), I assume you know streptocarpus already (for their colorful flowers and easy flowering).

Yup - Petrocosmea, Primulina, alpine gesneriads - and think about Columneas - a lot of Columneas come from high elevations montane forest conditions...There are 3 Saintpaulias that come from high elevation - S.goetziana, S. teitensis - and one more - do not remember which one - but can look it up.

I got an AV Magazine - and half of the articles is written by Gesneriad Society crowd - authors actually belong to both Societies, Please read an article by Karin Cichoki from NJ. She is an excellent grower and she grows some incredible cool climate gessies in her uheated basement.

Actually - AVM has a new editor, it is redesigned - and it has a lot of useful info.

So Bill, what are you going to accquire?