Now known as Sinningia douglasii. Other prints of this species can be seen here, here and here, a print of a hybrid here and a photograph here.
Aside from age-related foxing (dark splotches) and some yellowing of the paper, this is a beautiful print and a credit to the artist, engraver and colorist — and the double size provides good scope for the artist. At the time of the scan, it was exactly 180 years since publication on November 1, 1837.