Nepenthes appendiculata

Nepenthes appendiculata

Synonymy

Nepenthes appendiculata Chi.C.Lee, Bourke, Rembold, W.Taylor & S.T.Yeo in McPherson, New Nepenthes 1: 24 (-32; figs. 15-21). 2011 sec. Lee & al. 2011
    • Type (designated by Lee, C.C., Bourke, G., Taylor, W., Yeo, S.T. & Rembold, K. 20111): Malaysia, Sarawak, Hose Mountains, 1700 m, 27/08/2011 Ch'ien C. Lee, S 102701, Sarawak Herbarium (holotype, SAR)
  • 1. Lee, C.C., Bourke, G., Taylor, W., Yeo, S.T. & Rembold, K. 2011: Nepenthes appendiculata, a new pitcher plant from Sarawak, pp. 24-35. – In: McPherson, S. R., New Nepenthes 1

Description

Climbing stems cylindrical, up to 2 m long, 6-9 mm in diameter, internodes 8-9 cm long, axillary buds spike-like.
Leaves of the climbing stem sub-petiolate, lamina elliptic, to 14 cm long and 6 cm wide, apex acute, with 2 longitudinal veins in the outer ¼ of the lamina. Petiole decurrent for the entire length of the internode. Tendrils ca. 30-40 cm long, 2-5 mm in diameter, coiled in the middle.
Lower pitchers originating laterally from the tendril, sub-cylindrical and slightly swollen in the lower half, up to 10.5 cm tall and 3 cm wide, with two fringed wings up to 2 mm wide in the upper half, fringe elements 4-5 mm long, ca. 2 mm apart. Mouth ovate, inclined at ca. 45° angle, attenuated at base of lid. Peristome rounded on inner and outer edge, to 8 mm wide, widest at rear of mouth, teeth on inner margin comb-like, up to 0.5 mm long, ribs ca 0.2 mm apart. Interior of pitcher with waxy zone in upper half, lower half glandular. Spur inconspicuous. Lid broadly triangular to slightly cordate, 2.6 cm long and 2.5 cm wide, flat, underside with small, scattered inset glands and several large, raised glands near the base, with a flat, filiform appendage 1.5 mm long near the base and a filiform appendage 3 mm long at the apex.
Upper pitchers originating gradually from a curved, tubulose base, with a curve ca. 5.5 cm wide, ovate and swollen in the lower half, constricting at an obvious hip and cylindrical in the upper half, up to 24.5 cm tall and 4.8 cm wide, lacking wings, but with two prominent ventral ridges running nearly the length of the pitcher. Mouth sub-orbicular, inclined at ca. 45° to horizontal, attenuated at base of lid. Peristome rounded on inner and outer edge, to ca. 5 mm wide, with scalloped edges, widest at rear of mouth, teeth on inner margin inconspicuous, ribs ca. 0.3 mm apart. Interior of pitcher with waxy zone in upper half above hip, and glandular in the lower half. Spur simple, filiform, inserted ca. 1 cm from base of lid, 1.8 cm long. Lid cordate, 5.6 cm long and 4.9 cm wide, flat, underside completely covered with small, inset glands, with a central ridge ca 1.5 mm high near the base of the lid, extending into a flat, hook-shaped appendage 1.3 cm long, and at the apex of the lid extending into a stalked, woody appendage ca. 3.4 cm long and 0.8 cm wide, the underside of which is covered with 9-15 very large (up to 2.5 mm diameter), swollen nectar glands.
Male inflorescence a racemose panicle, ca. 10 cm long, peduncle 2.5 cm long, 2 mm in diameter. Partial peduncles 2-flowered, ca. 6 mm long, lacking bracts.
Female inflorescence up to 24 cm long, peduncle 10 cm long, 6 mm in diameter. Partial peduncles 2-flowered, 1.5-2 cm long, lacking bracts. Approximately 75 fruit in total, each up to 4.5 cm long.
Indumentum moderately dense and partially caducous on stems, undersurface and margin of leaves, tendrils, and inflorescence, consisting of short red-brown hairs.A

Conservation

Assessed as Data Deficient using the IUCN (2001) criteria. A

Distribution (General)

Malaysia, Sarawak, Hose Mountains.A

Etymology

Named for the unique and distinctive glandular appendages found on the lower surface of the lid. A

Habitat

Epiphytically in upper montane mossy forest at 1450-1700 m a.s.l.A

Bibliography

A. Lee, C.C., Bourke, G., Taylor, W., Yeo, S.T. & Rembold, K. 2011: Nepenthes appendiculata, a new pitcher plant from Sarawak, pp. 24-35. – In: McPherson, S. R., New Nepenthes 1

Specimens

CountryDateCollector + collecting numberHerbariaTypeScanDerivatives
Malaysia, Sarawak, Hose Mountains, 1700 m, 27/08/2011 Ch'ien C. Lee, S 102701, Sarawak Herbarium (holotype, SAR)
Citation: No Citation available. This specimen either has no or multiple field units.