^abcGronemeyer, T., F. Coritico, M. Micheler, D. Marwinski, R. Acil & V. Amoroso 2011.Nepenthes ceciliae, a new pitcher plant species from Mount Kiamo, Mindanao. In: McPherson, S.R.New Nepenthes: Volume One. Redfern Natural History Productions, Poole. pp. 412–423.
^abCheek, M. & M. Jebb 2013. Recircumscription of theNepenthes alata group (Caryophyllales: Nepenthaceae), in the Philippines, with four new species.European Journal of Taxonomy69: 1–23.doi:10.5852/ejt.2013.69
^abcCheek, M. & M. Jebb 2013. Typification and redelimitation ofNepenthes alata with notes on theN. alata group, andN. negros sp. nov. from the Philippines.Nordic Journal of Botany31(5): 616–622.doi:10.1111/j.1756-1051.2012.00099.x
^Cheek, M. & M. Jebb 2013.Nepenthes ramos (Nepenthaceae), a new species from Mindanao, Philippines.Willdenowia43(1): 107–111.doi:10.3372/wi.43.43112
^Cheek, M. & M. Jebb 2013.Nepenthes ultra (Nepenthaceae), a new species from Luzon, Philippines.Blumea, published online on October 24, 2013.doi:10.3767/000651913X675124