Holotype of Calycobolus upembaensis Lejoly & Lisowski [family CONVOLVULACEAE] Calycobolus upembaensis Vanden Brande Pierre J.J., #K2 None Congo, the Democratic Republic of the
Holotype of Calycobolus zairensis Lejoly & Lisowski [family CONVOLVULACEAE] Calycobolus zairensis De Troyer, #CXVI 1953-07-15 Congo, the Democratic Republic of the