Nepenthes surigaoensis elmer

---

Description:
Terrestrial climber. Stems angular, to 1.2 cm thick near the base. Leaves linear or lanceolate, up to 40 cm long, 5 cm wide; apex obtuse or acute; base attenuate decurrent; longitudinal veins to 4 on each side of the midrib. Lower pitchers wholly cylindrical or ellipsoidal, up to 16 cm tall, 7.5 cm wide; wings up to 2 cm wide, usually borne on longer tendrils to 1 m. Upper pitchers 15 cm tall, 6.5 cm wide, usually smaller and narrower wings or reduced to ridges, typically yellow, green, the upper half tending to be light purplish-red; basal third to half of pitcher broadly funnel-shaped, becoming cylindrical and slightly swollen towards the mouth. Pitcher opening oblique; peristome deep purplish red. Pitcher lid elliptic to ovate, 8 x 6.5 cm, narrowly cordate at base; lower surface without an appendage; spur to 1 cm long.

References:
Elmer, A.D.E. 1915. Two hundred twenty six new species - II. Leaflets of Philippine Botany 8: 2719–2884.
Fernando, E.S., V.B. Amoroso, D.N. Tandang, C.I. Banag, A.B. Lapis, W.S. Gruèzo, F.P. Coritico, F.A. Pollisco Jr., A.M. Palijon, M.D. Ching, F.P. Lansigan, C. Garcia-Francisco, N.M. Lita, A.M. Tagtag, & J.L. De Leon. 2021. Threatened Plants of the Philippines. 147p. Biodiversity Management Bureau, Department of Environment and Natural Resources (DENR), Quezon City, Philippines. ISBN 978-621-96498-0-3.
McPherson, S. & V.B. Amoroso. 2011. Field Guide to the Pitcher Plants of the Philippines. 60p. Redfern Natural History Productions Ltd., Poole, Dorset, UK.
Pelser, P.B., J.F. Barcelona, & D.L. Nickrent (eds.). 2011 onwards. Co’s Digital Flora of the Philippines. http://www.philippineplants.org.

---

---