albizia species

[Matthias Klein]

Hello,
I have some problems in Albizia species.
Some authors say Albizia lebbeck Benth., A. tanganyicensis Bak.f. and
A. rhodesica are synonyms for a plant growing in South Africa, some
say A. lebbeck is an plant growing in India.
Does anybody now the correct associations?
What species is that one growing in South Africa and named A. lebbeck?
Many thanks, please E-mail to 
MKlein at uni-bonn.de