A new species of Pelargonium L'Herit. (Geraniaceae) of the section Cam
pylia (Sweet) DC., is described. Illustrations of the macromorphology,
leaf anatomy and pollen grain morphology, as well as a distribution m
ap, are provided. P. burgerianum J.J.A.v.d.Walt is characterized by da
rk, embossed, warty areas on the posterior petals. A key is provided t
o distinguish between the five species which have similar areas. A hyb
rid origin of P. burgerianum is suggested.