Nepenthes campanulata

Nepenthes campanulata

Synonymy

Nepenthes campanulata Sh.Kurata in Gard. Bull. Singapore 26(2): 227 (t. 1, 2). 1973, , sec. Cheek & Jebb 2001
  • Nepenthes campanulata Sh.Kurata in The Heredity 26(10): 44 & 50. 1972, nom. nud., syn. sec. Cheek & Jebb 2001
    • Isotype: Indonesia, Borneo, E Kalimantan, Sankulirang, Ilas Bungaan, upriver from Sangkulirang, alt. 300 m, 9 Sep 1957, Kostermans 13764 (A).
    • Isotype: Indonesia, Borneo, E Kalimantan, Sankulirang, Ilas Bungaan, upriver from Sangkulirang, alt. 300 m, 9 Sep 1957, Kostermans 13764 (BM).
    • Isotype: Indonesia, Borneo, E Kalimantan, Sankulirang, Ilas Bungaan, upriver from Sangkulirang, alt. 300 m, 9 Sep 1957, Kostermans 13764 (BO).
    • Isotype: Indonesia, Borneo, E Kalimantan, Sankulirang, Ilas Bungaan, upriver from Sangkulirang, alt. 300 m, 9 Sep 1957, Kostermans 13764 (CANB).
    • Isotype: Indonesia, Borneo, E Kalimantan, Sankulirang, Ilas Bungaan, upriver from Sangkulirang, alt. 300 m, 9 Sep 1957, Kostermans 13764 (K).
    • Isotype: Indonesia, Borneo, E Kalimantan, Sankulirang, Ilas Bungaan, upriver from Sangkulirang, alt. 300 m, 9 Sep 1957, Kostermans 13764 (KEP).
    • Isotype: Indonesia, Borneo, E Kalimantan, Sankulirang, Ilas Bungaan, upriver from Sangkulirang, alt. 300 m, 9 Sep 1957, Kostermans 13764 (L).
    • Isotype: Indonesia, Borneo, E Kalimantan, Sankulirang, Ilas Bungaan, upriver from Sangkulirang, alt. 300 m, 9 Sep 1957, Kostermans 13764 (NY).
    • Holotype: Indonesia, Borneo, E Kalimantan, Sankulirang, Ilas Bungaan, upriver from Sangkulirang, alt. 300 m, 9 Sep 1957, Kostermans 13764 (SING).

Other sources

Phillipps, A. & Lamb, A.L. 1996: Pitcher Plants of Borneo: 78, f. 44
Jebb, M.H.P. & Cheek, M.R. 1997: A skeletal revision of Nepenthes. – Blumea 42(1): 1-106: 29
Clarke, C.M. 1997: Nepenthes of Borneo: 76, f. 44

Description

Terrestrial shrublet to 30 cm tall. Stems terete, c. 0.4 cm diam., internodes c. 2 mm long. Leaves coriaceous, sessile, obovate, 5-9 by 1.2-2.5 cm, apex rounded, peltate by 0.1-0.4 cm, base attenuate, margin regularly undulate and sinuate. Longitudinal nerves 3 on each side of the midrib, scattered throughout lamina and arising from base of mid-rib. Pennate nerves obscure. Pitchers campanulate, i.e. ventricose near base, narrowed at middle, upper half infundibulate, c. 8 by 4 cm; wings absent, but with a pair of ridges; mouth circular, horizontal, to 4 cm wide; peristome reduced to small but prominent teeth 0.25-0.4 mm apart, these conical, curving inwards, c. 0.2 mm long; the margin scarcely thickened between these teeth, outer edge entire; lid elliptic-oblong to ovate, 1.5-2 by 1.2-1.5 cm, junction with pitcher broad, 3-4 mm wide, lower surface lacking appendages, nectar glands volcano-like, 0.1-0.2 mm wide, dense near base and along midline, becoming sparse towards margin; spur simple, flattened, 1.5-3 mm long. Inflorescence unknown. Fruit and seed unknown. Indumentum sparse, dense below peristome and around spur, brown, < 0.1 mm long. Colour: “pitcher yellowish green; base inside with red brown dots. Lip inside dark green” (Kostermans 13764).A

Notes

In other species with strongly infundibuliform pitchers such as N. dubia, N. eymae, and N. inermis the lid is very narrow, and before opening the pitcher is laterally flattened along its length. Nepenthes campanulata on the other hand has a relatively small, elliptic lid. Thus after opening, the mouth of these pitchers must expand far more than is the norm in the genus. In this respect they are similar to the pitchers of N. reinwardtiana which has a broad infundibuliform pitcher with a wide mouth, but a relatively small lid and a very reduced peristome. The pitchers are not clearly differentiated as either upper or lower pitchers. The pitcher tendrils do not twine, but are short and bent abruptly, as in N. pervillei of the Seychelles. No flowering material of this species is known.
This species was reported to be absent from the type locality in 1987, the whole area having been burnt over during the drought of 1982. It is possible that the species is now extinct at this location. However, it has recently been discovered at an unspecified second site in Malaysian Borneo (Chi’en Lee: website http://wayback.archive.org/web/*/http://www.malesiana.tropicals.com.my/tropicals/campanulata.html (original link defunct; linking to Internet Archive instead)).A

Distribution (General)

Borneo: E Kalimantan (Ilas Bungaan) and Malaysian Borneo.A

Habitat

On sheer limestone walls; 300 m.A

Bibliography

A. Cheek, M.R. & Jebb, M.H.P. 2001: Flora Malesiana - Nepenthaceae, Series I, Volume 15

Specimens

CountryDateCollector + collecting numberHerbariaTypeScanDerivatives
Indonesia1957-09-09Kostermans 13764A, BM, BO, CANB, K, KEP, L, NY, SING
Citation: Indonesia, Borneo, E Kalimantan, Sankulirang, Ilas Bungaan, upriver from Sangkulirang, alt. 300 m, 9 Sep 1957, Kostermans 13764.

Specimen summary: A
Isotype of Nepenthes campanulata Sh.Kurata

Specimen summary: BM
Isotype of Nepenthes campanulata Sh.Kurata

Specimen summary: BO
Isotype of Nepenthes campanulata Sh.Kurata

Specimen summary: CANB
Isotype of Nepenthes campanulata Sh.Kurata

Specimen summary: K
Isotype of Nepenthes campanulata Sh.Kurata

Specimen summary: KEP
Isotype of Nepenthes campanulata Sh.Kurata

Specimen summary: L
Isotype of Nepenthes campanulata Sh.Kurata

Specimen summary: NY
Isotype of Nepenthes campanulata Sh.Kurata

Specimen summary: SING
Holotype of Nepenthes campanulata Sh.Kurata