I've been looking at the Allen Lowrie "CP of Australia" books, volume 1 & 2.
I got these from the local library using inter-library loan (costs $1 per
book for 2 weeks loan if they find your requested book). Why isn't
D. peltata ssp. auriculata mentioned in volume 1? What is the story of
D. barbigera / D. silvicola? The plant in volume 2, called D. barbigera,
I understand is actually D. silvicola, and looks similar to my plants
of D. silvicola. The World CP List shows that both D. barbigera and
D. silvicola are valid names. Also, in volume 2, D. pygmaea is described
as having white anthers. Nearly all of my D. pygmaea have red anthers.
-- Don Burden New Albany, Indiana, USA donb@iglou.com