• Plantaginaceae & Rubiaceae (Galieae and Anthospermeae) 

      Marloth, R. (Rudolf), 1855-1931 (1932)
      Plate 48 from The flora of South Africa (vol. 3, part 2) featuring Plantaginaceae & Rubiaceae (Galieae and Anthospermeae).
    • Rubiaceae 

      Marloth, R. (Rudolf), 1855-1931 (1932)
      Plate 50 from The flora of South Africa (vol. 3, part 2) featuring Rubiaceae.
    • Rubiaceae 

      Marloth, R. (Rudolf), 1855-1931 (1932)
      Plate 49 from The flora of South Africa (vol. 3, part 2) featuring Rubiaceae.