Campanulate Sinningia flowers

The picture shows a selection of Sinningia flowers.  They were all blooming on August 15, 2006, and they all have either open tubes or campanulate ("slipper") corollas.

Sometimes you can understand what's going on in hybridization.  S. conspicua gives the campanulate shape to its hybrid with S. 'Peninsula Belle'.

Sometimes you can't understand what's going on in hybridization.  S. 'Texas Zebra' is magenta-lavender with dark stripes.  S. 'Peninsula Belle' is magenta with prominent dots.  So the cross between the two of them has white flowers with very pale lavender stripes, and looks a lot like S. eumorpha.  (Another plant from this cross has bloomed, and its flowers are very similar.)