Fontella & Morillo No year - Pereira JF, Morillo G (1993) ASCLEPIADACEAE BRASILIENSES X. NOVAS ESPECIES EM BLEPHARODON DECNE. E MARSDENIA R. Br. Acta Botánica Venezuélica 16(2/4): 73-77. Retrieved from http://www.jstor.org/stable/41740500
There is no corrections for Marsdenia otoniensis yet.