Arceuthobium oxycedri Hippolyte Coste - Flore descriptive et illustrée de la France, de la Corse et des contrées limitrophes, 1901-1906 - This image is in public domain because its copyright has exipred.

Arceuthobium pusillum USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 1: 638.

Viscum album Credit: Photo by Leo Michels. Usage: Public Domain