The bulbil tissue of Dioscorea sansibarensis Pax., a monocot, was grown in vitro; some aspects of the growth and organogenesis are described here. The tissue, chiefly storage parenchyma, grows into callus on White's medium supplemented with coconut milk and 2,4-D. Kinetin and indoleacetic acid had no effect at the concentrations tested. Roots usually developed in 4- to 5-month-old cultures. Bud initials developed in about 2% of the 6-month-old cultures. The present results are compared with the previous literature concerned with the growth of storage tissues in culture, including the few reports for monocots.