Nepenthes hamata

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Nepenthes hamata

Lower pitcher of cultivated plant.

Kingdom:	Plantae
Division:	Magnoliophyta
Class:	Magnoliopsida
Order:	Caryophyllales
Family:	Nepenthaceae
Genus:	Nepenthes
Species:	N. hamata

Binomial name

Nepenthes hamata
J.R.Turnbull & A.T.Middleton (1984)

Synonyms

Nepenthes dentata
Sh.Kurata (1984)
Nepenthes hamatus
J.R.Turnbull & A.T.Middleton (1984)

Nepenthes hamata (pronounced /nəˈpɛnθiːz həˈmɑːtə/ or /ˈhæmɑːtə/, from Latin: hamatus = hooked) is a carnivorous pitcher plant species of the genus Nepenthes. It is endemic to Central Sulawesi where it grows as an epiphyte in mossy forest.

Closeup of perisome teeth

N. hamata is famous for having possibly the most developed peristome in the genus, which consists of expanded ribs that form long, curved "teeth" at the edge of the pitcher's mouth. The upper pitchers are usually more elongated and the peristome is even more developed, with the "teeth" curving completely outwards.

N. hamata belongs to what has been called the "Hamata group", which also includes four other closely related species from Borneo and Sulawesi: N. glabrata, N. muluensis, N. murudensis, and N. tentaculata.^[1]

[edit] Forms and varieties

Two distinct forms of N. hamata are known: the typical form and a "red hairy" variety. The plants pictured are examples of the former. The other, recently discovered, variety bears a thick indumentum of rusty red/brown hairs that covers its pitchers. It has yet to be formally described.

[edit] Natural hybrids

N. glabrata × N. hamata^[2]
? N. hamata × N. tentaculata

? N. hamata × N. tentaculata

[edit] References

^ Meimberg, H. & G. Heubl 2006. Introduction of a Nuclear Marker for Phylogenetic Analysis of Nepenthaceae. Plant Biology (Stuttgart, Germany) 8(6): 831–840. doi:10.1055/s-2006-924676
^ Lee, C.C. 2006. Sulawesi Photographs. Carnivorous Plants in the tropics.

Schnell, D., Catling, P., Folkerts, G., Frost, C., Gardner, R., et al. (2000). Nepenthes hamata. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 11 May 2006. Listed as Vulnerable (VU C2a v2.3)
Jebb, M.H.P. & M.R. Cheek 1997. A Skeletal Revision of Nepenthes (Nepenthaceae). Blumea 42(1): 1–106.
Hansen, E. 2001. Where rocks sing, ants swim, and plants eat animals: finding members of the Nepenthes carnivorous plant family in Borneo. Discover 22(10): 60–68.