Inflorescences of Eucomis regia (A, B), Massonia grandiflora (C, D), M. pustulata (E, F), and M. echinata (G–H) photographed with a camera being sensitive to UV, visible, and IR light, in combination with a UV-transmissible lens and a UV/IR cut filter (transmitting at 400–700 nm) under ambient room light (A, C, E, G) and the same inflorescences under UV illumination in a darkened room showing blue (B, D) to bluish green (F, H) fluorescent nectar. Note that the fluorescence appears only in the flowers containing nectar (in E. regia: nectar clearly visible only in the two middle lower flowers where nectar accumulates in the lower gaps between the filaments and the ovary and is not hidden by other flower parts, in M. grandiflora: nectar only in the left flowers of the inflorescence, in M. pustulata: nectar only in the right flowers of the inflorescence, in M. echinata: nectar only in the lower flowers of the inflorescence) and not in the Massonia flowers in which nectar was removed from the floral tubes. The light spots outside the floral tubes are nectar drops at the two tepal tips in the bottom left flower of the E. regia inflorescence (A, B) and a tepal coated with nectar on the left side of the M. pustulata inflorescence (C, D). Scale bars = 1 cm.