Croton L.
1. C. lobatus L.
In collibus graminosis prope Ibadan (Yoruba-Land). III. 1899 — No. 12331.
Manniophyton M. Arg.
1. M. africanum M. Arg.
In fruticetis prope Coquilhatville (Congo). VII. 1899 — No. 12615.
Micrococca Bth.
1. M. Mercurialis Bth.
In cultis prope Kriegsschiffhafen (Kamerun). IV. 1899 — No. 12394.
Erythrococca Bth.