Nepenthes pitopangii

Synonymy

Nepenthes pitopangii Chi.C.Lee, S.McPherson, Bourke & M.Mansur in Gard. Bull. Singapore 61(1): 95 (-99; fig. 1). 2009 [This species is named for Dr. Rahmadanil Pitopang, curator of the herbarium of Universitas Tadulako, who has studied the flora of Central Sulawesi for over 18 years.C]. sec. Lee & al. 2009

Type: Lore Utara District, Poso Regency, Central Sulawesi, 30 May 2007, RP 2054 (CEB)

Content

Description

Terrestrial climber to ca 2 m tall. Climbing stems cylindrical to slightly triangular in cross-section, particularly towards the developing shoot, 3-5 mm diam., internodes (4.1-) 6.4-9 cm long. Leaves of the climbing stems chartaceous, sessile, lanceolate, apex acute, (10.1)11.5-14.4 (15.6) cm long, (2)2.5-2.9 (3.4) cm wide; base clasping stem for about 2/3 its circumference; longitudinal veins 3-4 on each side of the midrib, pennate nerves inconspicuous; tendrils with a curl in the middle, 24-25 cm long. Rosette pitchers unknown. Upper pitchers wholly infundibuliform, 3.8-4.5 cm high, 3.3-3.7 cm wide, slightly contracted just below the mouth; pitcher mouth horizontal in front and slightly elevated towards the lid attachment; peristome cylindrical, 1-3 mm wide, with distinct ribs, ca 0.45 mm apart, each rib terminating in a blunt rounded tooth on the inner margin; interior of pitcher without waxy zone, glandless immediately below peristome (ca 4 mm), otherwise evenly covered with glands ca 200 per cm2, yellow in color above pitcher fluid, black in color where immersed; lid suborbicular, 2.9 by 2.8 cm, held horizontally over pitcher mouth, sides somewhat raised, lower surface without appendages, evenly distributed with small crater-like rimmed glands; spur simple, ca 1.5 mm long. Male inflorescence (measurements taken from living specimens) a raceme, 37 by 2.5 cm; peduncle 18 cm long, 0.3 cm diam. at base, pedicels 7-9 (-11) mm long, each bearing a single flower, bracts usually absent but occasionally towards base of inflorescence pedicels with small filiform bract, ca 0.5 mm long inserted at about half the length of the pedicel, tepals elliptic, ca 2 mm long, staminal column 2.5-3.0 mm long. Female inflorescence and fruit unknown. Indumentum absent on all parts of plant except for the developing pitcher and tip of the tendril, which are covered with caducous silver-brown hairs. Color of living specimens: leaves light green with red margins and red midrib on upper and lower surface; stems dark red to purple with green spots; tendril red; upper pitchers pale yellow with orange-red stripes, interior if pitcher and underside of lid pale yellow; peristome orange-red.A

Notes

Belongs to Nepenthes sect. Tentaculatae Cheek & JebbB

Conservation

IUCN Red List classification of “data deficient” (DD) proposed.A

Distribution (General)

Indonesia, Central Sulawesi, Lore Lindu National Park.A

Habitat

Secondary vegetation in submontane forest at an altitude of 1800 m.A

Bibliography

A. Lee, C.C., McPherson, S. R., Bourke, G. & Mansur, M. 2009: Nepenthes pitopangii (Nepenthaceae), a New Species from Central Sulawesi, Indonesia. – Gard. Bull. Singapore 61(1)

B. Cheek, M. R. & Jebb, M. H. P. 2016: A new section in Nepenthes (Nepenthaceae) and a new species from Sulawesi. – Blumea 61: 59-62

Specimens

	Country	Date	Collector + collecting number	Herbaria	Type	Scan	Derivatives
	Lore Utara District, Poso Regency, Central Sulawesi, 30 May 2007, RP 2054 (CEB)
	Citation: Lore Utara District, Poso Regency, Central Sulawesi, 30 May 2007, RP 2054 (CEB)