might be of interest Sinningia speciosa (Gloxinia)
Peter Taggart (Fri, 23 Sep 2011 12:18:55 PDT)

Not exactly bulbous but I too have about 8 species of Pterocosmia - Is the
Genus currently recognised? P Kirkii has more or less faded out but was very
lovely for some years.
Peter (UK)

On Wed, Sep 21, 2011 at 11:24 PM, Dennis Kramb <dkramb@badbear.com> wrote:

And fibrous rooted gesneriads such as Primulina (formerly Chirita),
Streptocarpus, Episcia, Aeschynanthus, Drymonia, Columnea,
Nematanthus, and Saintpaulia