3. B. Ruellia K. Sch.
In arenosis inter Ibadan et Abeokuta (Yoruba-Land). III. 1899 — No. 12340.
4. B. stricta K. Sch.
In planitie arenosa prope Dolo pone Stanley-Pool (Congo). VI. 1899 — No. 12458.
5. B. tetradon K. Sch. n. sp.
In paludibus prope Dolo, juxta „Stanley-Pool“ (Congo). VI. 1899 — No. 12475.
Mitracarpus Zucc.
1. M. verticillatus Vatke.
In collibus arenosis inter Ibadan et Abeokuta (Yoruba-Land). III. 1899 — No. 12353. In collibus graminosis prope Ibadan (Yoruba-Land). III. 1899 — No. 12324. In arenosis prope Leopoldville (Congo). VI. 1899 — No. 12591.
Cucurbitaceae. (Det. H. Herms.)