Nepenthes × merrilliata (; a blend of merrilliana and alata) is a natural hybrid involving N. alata and N. merrilliana. Like its two parent species, it is endemic to the Philippines, but limited by the natural range of N. merrilliana to SamarRobinson, A. 2012. Nepenthes merrilliana on Samar . Carnivorous Plants in the tropics, June 29, 2012. as well as Mindanao and its offshore islands.
References
Fleming, R. 1979. Carnivorous Plant Newsletter 8(1): 10–12. Mann, P. 1998. A trip to the Philippines. Carnivorous Plant Newsletter 27(1): 6–11. McPherson, S.R. & V.B. Amoroso 2011. Field Guide to the Pitcher Plants of the Philippines. Redfern Natural History Productions, Poole. CP Database: Nepenthes × merrilliata