Nepenthes clipeata

Nepenthes clipeata

Synonymy

Nepenthes clipeata Danser in Bull. Jard. Bot. Buitenzorg, sér. 3, 9: 281, f. 2. 1928 sec. Cheek & Jebb 2001
    • Lectotype: Indonesia, Borneo, W Kalimantan, G. Kelam, Feb 1894, H. Hallier B 2344 (BO sh. 1711-04).
    • Isotype: Indonesia, Borneo, W Kalimantan, G. Kelam, Feb 1894, H. Hallier B 2344 (BO).
    • Isotype: Indonesia, Borneo, W Kalimantan, G. Kelam, Feb 1894, H. Hallier B 2344 (K).

Other sources

Phillipps, A. & Lamb, A.L. 1996: Pitcher Plants of Borneo: 80, f. 45
Clarke, C.M. 1997: Nepenthes of Borneo: 78, f. 51
Jebb, M.H.P. & Cheek, M.R. 1997: A skeletal revision of Nepenthes. – Blumea 42(1): 1-106: 30

Description

Terrestrial scrambler or prostrate herb c. 30 cm tall. Stem terete or slightly flatten-ed, to 1 m or more in length, 0.6-1.2 cm diam., internodes 2-5(-10) cm long. Leaves thickly coriaceous, petiolate, orbicular to ovate, 7-20 by 6-16 cm, apex rounded, peltate 1/2-1/3 way from apex, base obtuse to cordate; petiole stout, 5-10.5 by 0.5-0.8 cm, V-shaped in transverse section, the lower 3 cm clasping the stem for 4/5 or its complete circumference. Longitudinal nerves 3-5 on each side of the margin, spread evenly through the marginal half of the blade. Pennate nerves ± 9 pairs, at 45° from the midrib and branching within the innermost of the longitudinal vein pairs. Lower pitchers unknown. Upper pitchers 10-30 cm long, lower third globose to obovoid, leathery-woody, 8-11.5 by 6-8.5 cm, abruptly constricted above, the upper 2/3 narrowly infundibuliform, 2.8-5 cm wide at the base, chartaceous, flaring gradually to 5.2-9 cm at the mouth, ridges and wings absent except the smallest pitchers with two thin fringed wings 1.5 mm wide; mouth ± circular, horizontal to slightly oblique; peristome subcylindrical, 1-12 mm wide, ribs 0.3-0.7 mm apart, 0.1-0.2 mm tall, outer edge entire or slightly sinuate, inner edge toothed; lid ovate, vaulted, being markedly concave below, 3-8 by 2-5 cm, apex rounded, base cordate, the lower surface with a laterally flattened basal appendage to 8 mm tall, nectar glands crater-like, slightly longitudinally elliptic, 0.2-0.3 mm long, fairly densely and evenly scattered; spur simple, c. 5 mm long. Male inflorescence unknown. Fruit unknown. Seed unknown. Indumentum of coarse, patent, bronze hairs 1-2 mm long, dense on the stem, lower leaf, petiole and tendril, less dense, shorter (0.5-0.6 mm long), less conspicuous and browner on the outer pitcher. Colour of stems, petioles and midribs red; pitcher, including lid white, with a few red flecks; peristome white, heavily streaked with red; inflorescence colour unknown.A

Notes

Nepenthes clipeata is a member of the N. maxima group. It is unmistakable, with its orbicular leaf blade from which the tendril arises near the centre of the lower surface. It is known in herbaria only from the type gathering made over 100 years ago, and reports from nepenthophile tourists. Kurata in Nepenthes of Borneo (1976) 23 and Adam et al., J. Trop. For. Sci. (1991) claim that the species is a limestone endemic, but this is not in agreement with either the collection notes or the type locality (granitic). The best data on its habit and habitat is to be found in Clarke, Nepenthes of Borneo (1997: 78).
A number of horticultural collectors are reported to have visited the only known locality over the last ten years and the species is now said to be much scarcer than for-merly, and in danger of extinction. Clarke (pers. comm.) believes only 2-6 plants may survive in the wild.A

Distribution (General)

Borneo: W Kalimantan (Mt Kelam).A

Habitat

Crevices in sheer granite walls; 600-800 m.A

Bibliography

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

Images

Specimens

CountryDateCollector + collecting numberHerbariaTypeScanDerivatives
Indonesia1894-02-��Hallier, H. G. B 2344BO(2), K
Citation: Indonesia, Borneo, W Kalimantan, G. Kelam, Feb 1894, H. Hallier B 2344. (BO sh. 1711-04)

Specimen summary: BO
Isotype of Nepenthes clipeata Danser

Specimen summary: BO sh. 1711-04
Lectotype of Nepenthes clipeata Danser

Specimen summary: K
Isotype of Nepenthes clipeata Danser