Lophophora williamsii observed in situ in its natural habitat in southern Presidio County (West Texas). Small, fast-moving ants, most likely from the genera Dorymyrmex or Solenopsis, can be seen on the plant. Attracted to the mature fruit remnants or dried floral parts, these ants may be engaging in myrmecochory. They carry the seeds away from the mother plant and deposit them in small soil cavities, among plant debris, or near their nests, where the soil is generally more aerated and moist. In