The above links show records made of species which occur in Zambia. The actual records may have been made anywhere.
Note: written as 'R.B. Hack.' on the herbarium sheet - is this name abbreviated?
Copyright: Mike Bingham, Annette Willemen, Bart Wursten, Petra Ballings and Mark Hyde, 2011-17
Bingham, M.G., Willemen, A., Wursten, B.T., Ballings, P. and Hyde, M.A.
. Flora of Zambia: Person details: Hack, RB.
http://www.zambiaflora.com/speciesdata/person-display.php?person_id=170, retrieved 28 March 2017