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.)