1,100,502 specimens across 6 departments, collected since 1754 — 100,256 names, 42,336 type specimens.
4 specimens
Vernonia congolensis
BISH 441187 · Lewalle, J., 1967
Tanzania
Ipomoea obscura
BISH 727886 · Lewalle, J.
Ipomoea eriocarpa
BISH 727887 · Lewalle, J.
Ipomoea welwitschii
BISH 727888 · Lewalle, J.