There were 5 illustrations found for C. Menger
2 671650 Millettia versicolor BakerE.A.J. De Wildeman, Études Fl. Bas-Moyen-Congo, vol. 1(3): (Plates 44-73): t. 47 (1906)
2 671623 Millettia theuszii (Buttner) De Wild. [0]E.A.J. De Wildeman, Études Fl. Bas-Moyen-Congo, vol. 1(3): (Plates 44-73): t. 48 (1906)
2 1013427 Thomandersia laurentii De Wild.E.A.J. De Wildeman, Études Fl. Bas-Moyen-Congo, vol. 1(3): (Plates 44-73): t. 49 (1906)
6 541704 Hygrophila didynama (Lindau) Heine [125 157732 Brillantaisia didynama Lindau]E.A.J. De Wildeman, Études Fl. Bas-Moyen-Congo, vol. 1(3): (Plates 44-73): t. 50 (1906)
6 962469 Sorindeia africana (Engl.) Van der Veken [125 1016736 Thyrsodium africanum Engl.]E.A.J. De Wildeman, Études Fl. Bas-Moyen-Congo, vol. 1(3): (Plates 44-73): t. 72 (1906)