KOKUBUGATA, G., K. D. HILL, G. W. WILSON, K. KONDO, and L. M. RANDALL. 2001. “A COMPARISON OF CHROMOSOME NUMBER AND KARYOTYPE IN SOMATIC CHROMOSOMES OF STANGERIACEAE (CYCADALES)”. Edinburgh Journal of Botany 58 (3): 475-81. https://doi.org/10.1017/S0960428601000786.