Nepenthes vogelii

Nepenthes vogelii /nɪˈpɛnθiːz voʊˈɡɛliaɪ/ is a tropical pitcher plant endemic to Borneo. It is thought to be most closely related to N. fusca.

Nepenthes vogelii
An upper pitcher of Nepenthes vogelii

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Nepenthaceae
Genus: Nepenthes
Species:
N. vogelii
Binomial name
Nepenthes vogelii
Schuit. & de Vogel (2002)

Botanical history

The first known collection of N. vogelii was made in 1961 on Mount Api in Gunung Mulu National Park by forest botanist J. A. R. Anderson. The material, labelled as N. fusca, was deposited at the Sarawak Forestry Department herbarium.[2] In 1969, botanist Shigeo Kurata examined this specimen and noted that it did not fall within the known variation exhibited by N. fusca.[2]

A lower pitcher (left) and an upper pitcher (right) of N. vogelii

Nepenthes vogelii was formally described in 2002 by Andre Schuiteman and Eduard Ferdinand de Vogel. The description was published in the botanical journal Blumea[3] and is based on a single cultivated specimen, A.Vogel, A.Schuiteman & T.Roelfsema 981037 (SAR).[4] This specimen was collected as a seedling in the Kelabit Highlands of Sarawak in 1997 and subsequently raised to maturity by Art Vogel, botanist and former conservatory manager of the Hortus Botanicus Leiden. Nepenthes vogelii is named in his honour.[3]

Some time prior to its description, N. vogelii entered cultivation through Ch'ien Lee's Malesiana Tropicals plant nursery under the name "Nepenthes spec. 4".[5]

Few specimens of this species are deposited in herbaria, likely due to its epiphytic growth habit, which makes it hard to find without the aid of binoculars.[2]

Description

Rosette and lower pitchers are cylindrical throughout and have a small horizontal mouth.[6] Unusually, they lack ventral wings. The lid is broadly triangular and lacks appendages.[3] Pitchers are yellowish with dark speckles and a striped peristome.[2]

Upper pitchers are generally infundibular, although their shape may vary from narrowly funnel-shaped to distinctly bulbous in the upper portion. This bulbous portion corresponds to the upper waxy zone of the inner surface.[2]

Upper pitchers of N. vogelii in the Kelabit Highlands

Ecology

Despite only being recorded from several scattered localities, N. vogelii appears to be more widespread in Borneo than previously thought.[7] Initially believed to be endemic to northern Sarawak,[6] it is now known from southern Sabah and West Kalimantan.[2] The species has an altitudinal distribution of 1000[6] to 1500 m above sea level.[2]

Nepenthes vogelii typically occurs as an epiphyte in submontane or tall lower montane forest. The type specimen was found growing terrestrially among moss in wet kerangas forest. The plant was sympatric with N. stenophylla[note a] and N. veitchii.[2] Despite this, no natural hybrids involving N. vogelii have been recorded.[2][8]

On Mount Mulu, N. vogelii occurs in a narrow altitudinal band (1200 to 1500 m) where its distribution does not overlap with those of the likewise epiphytic N. fusca and N. hurrelliana, which grow below 1200 m and above 1500 m, respectively.[2]

N. vogelii produces much smaller and more colourful pitchers than the closely related N. fusca

Nepenthes vogelii belongs to the loosely defined "N. maxima complex", which also includes, among other species, N. boschiana, N. chaniana, N. epiphytica, N. eymae, N. faizaliana, N. fusca, N. klossii, N. maxima, N. platychila, and N. stenophylla.[9]

Nepenthes vogelii is thought to be most closely related to N. fusca. It differs from that species in having much smaller pitchers and lacking appendages on the underside of the lid.[3] In addition, the lid of N. vogelii is broadly triangular as opposed to the narrowly triangular lid of N. fusca.[2][6] The colour of the pitchers—light cream with dark speckles—is also distinctive.[6] These features also distinguish it from N. burbidgeae and N. stenophylla.[note a][2]

Nepenthes vogelii shows close affinities to N. platychila.[2] However, unlike the lower pitchers of N. vogelii, those of N. platychila bear wings and have a relatively wide peristome.[2][10]

Notes
a.^ Some authors treat N. fallax in synonymy with N. stenophylla,[11][12] while others consider them to be two distinct species, with plants commonly referred to as N. stenophylla actually representing N. fallax.[4] As in Matthew Jebb and Martin Cheek's 1997 monograph[11] and Charles Clarke's 1997 monograph,[12] the first interpretation is followed here.
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References
  1. Clarke, C.M.(2018)"Nepenthes vogelii".In: IUCN 2018. IUCN Red List of Threatened Species. Version 2018.1.
  2. Phillipps, A., A. Lamb & C.C. Lee 2008. Pitcher Plants of Borneo. Second Edition. Natural History Publications (Borneo), Kota Kinabalu.
  3. Schuiteman, A. & E.F. de Vogel 2002. Nepenthes vogelii (Nepenthaceae): a new species from Sarawak. Blumea 47(3): 537–540.
  4. Schlauer, J. 2006. Nepenthes Archived 2011-06-17 at the Wayback Machine. Carnivorous Plant Database.
  5. Fleischmann, A. 2003. Drosera peruensis spec. nov. from Peru Archived 2011-07-25 at the Wayback Machine. Carnivorous Plant Mailing List, January 12, 2003.
  6. Clarke, C.M. & Lee, C.C. 2004. Pitcher Plants of Sarawak. Natural History Publications (Borneo), Kota Kinabalu.
  7. Lee, C.C. 2004. New records and a new species of Nepenthes (Nepenthaceae) from Sarawak. Sandakania 15: 93–101. [
  8. McPherson, S.R. 2009. Pitcher Plants of the Old World. 2 volumes. Redfern Natural History Productions, Poole.
  9. Robinson, A.S., J. Nerz & A. Wistuba 2011. Nepenthes epiphytica, a new pitcher plant from East Kalimantan. In: McPherson, S.R. New Nepenthes: Volume One. Redfern Natural History Productions, Poole. pp. 36–51.
  10. Lee, C.C. 2002. Nepenthes platychila (Nepenthaceae), a new species of pitcher plant from Sarawak, Borneo. The Gardens' Bulletin Singapore 54: 257-261.
  11. Jebb, M.H.P. & M.R. Cheek 1997. A skeletal revision of Nepenthes (Nepenthaceae). Blumea 42(1): 1–106.
  12. Clarke, C.M. 1997. Nepenthes of Borneo. Natural History Publications (Borneo), Kota Kinabalu.

Further reading
  • Bonhomme, V., H. Pelloux-Prayer, E. Jousselin, Y. Forterre, J.-J. Labat & L. Gaume 2011. Slippery or sticky? Functional diversity in the trapping strategy of Nepenthes carnivorous plants. New Phytologist 191(2): 545–554. doi:10.1111/j.1469-8137.2011.03696.x
  • Bourke, G. 2007. Trekking to Gunung Mulu. Victorian Carnivorous Plant Society Journal 83: 9–11.
  • Bourke, G. 2010. "The climbing pitcher plants of the Kelabit highlands" (PDF). Archived from the original (PDF) on 2013-04-09. Retrieved 2012-10-21. Captive Exotics Newsletter 1(1): 4–7.
  • Bourke, G. 2011. The Nepenthes of Mulu National Park. Carniflora Australis 8(1): 20–31.
  • Lee, C.C. 2000. Recent Nepenthes Discoveries. [video] The 3rd Conference of the International Carnivorous Plant Society, San Francisco, USA.
  • McPherson, S.R. & A. Robinson 2012. Field Guide to the Pitcher Plants of Borneo. Redfern Natural History Productions, Poole.
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