This is from around the corner (Physiologisch-chemisches Inst., Uni
Tuebingen).
>In my thesis I will describe some remote areals of Drosera
>rotundifolia and D. anglica in the northern Black Forest, Germany.
So you will at most describe some remote (not too remote, however)
*populations within* the much more expanded (nearly circumboreal) area of
distribution ("Areal") of these species. Comparison with e.g. MEUSEL & al.
"Vergleichende Chorologie der zentraleuropaeischen Flora" (We have a copy
of it in the library in Wilhelmstrasse, I urgently recommend to consult
it!) will show that "northern Black Forest, Germany" lies quite in the
heart of the range of these species.
Kind regards
Jan