The above links show records made of species which occur in Zambia. The actual records may have been made anywhere.
Collector in Zimbabwe central division. May be the same person as Hall, G.
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: Hall, GR.
http://www.zambiaflora.com/speciesdata/person-display.php?person_id=335, retrieved 23 March 2017