In order to maximize yield, Spathiphyllum, an ornamental plant, was cultured in vitro in novel culture vessels termed Vitron. The best growth was obtained by culturing plantlets on sugar-free liquid medium under CO2 enrichment (3 000 µmol mol-1 24 h-1 d-1) at a low photon flux density (PPFD of 45 µmol m-2 s-1), suggesting that the novel Vitron culture system is suitable for the photoautotrophic micropropagation of Spathiphyllum. and J. A. Teixeira da Silva, D. D. T. Giang, M. Tanaka.