"in peaty humus or moss at the base of 5–6 m tall trees". Salmon and Maulder also pressed a second specimen of N. mikei from material collected at the same elevation on Pangulubao. Additional herbarium specimens of N. mikei are known and these show slight morphological variability. In 1997, Matthew Jebb and Martin Cheek published their monograph "A skeletal revision of Nepenthes (Nepenthaceae)", in which they provided an emended description of N. mikei that encompassed specimens of the closely related, and at the time undescribed, N. angasanensis from Mount Leuser, Goh Lembuh, and the Kappi region. Salmon and Maulder did not support this interpretation and reinstated their original description of N. mikei when they described N. angasanensis in 1999. Jebb and Cheek retained N. angasanensis as a synonym of N. mikei in their 2001 monograph, "Nepenthaceae", writing: "We suspect that it [N. angasanensis] may prove not distinct from N. mikei and here treat it as a synonym." Description Nepenthes mikei is a climbing plant growing to a height of 7 m. The stem, which may be branched, is up to 0.4 cm in diameter and has cylindrical to angular internodes measuring up to 9 cm in length. Plants from Mount Bandahara are known to produce offshoots from short underground rhizomes. Nepenthes mikei is noted for rapidly transitioning from a rosette to a climbing stage; sequential internodal lengths of 2–3 mm and 10 cm have been recorded. Leaves are sessile and coriaceous in texture. The lamina (leaf blade) is linear and measures up to 10 cm in length by 2 cm in width. Its apex may be acute or obtuse and it is abruptly contracted at the base, clasping the stem for around half of its circumference. One to two longitudinal veins are present on either side of the midrib, while pinnate veins are irregularly reticulate. The upper surface of the lamina is typically green, but may be red if exposed to direct sunlight. Tendrils are up to 15 cm long. Rosette and lower pitchers are ovate in the basal third to quarter of the pitcher cup, becoming approximately cylindrical above and infundibular towards the pitcher mouth. They are relatively small, growing to only 12 cm in height by 3 cm in width. A pair of wings (≤4 mm wide) typically runs down the ventral surface of the pitcher cup, with fringe elements measuring up to 8 mm in length. These