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The Native Nepenthes Hybrids of Brunei
All photography by Glyn and Gina Constant

There is an abundance of natural hybrids growing here along side of the parent species.

N. ampullaria x N. bicalcarata.
One of the rarer hybrids. I have seen only 3 plants. It has the body shape and lid of the Bical and the peristome of the Amp. Note the trace of the Bical's vestigal fangs.

vestigial fangs X 5 N. ampullaria x N. bicalcarata.

N. ampullaria x N. bicalcarata.

N. trichocarpa
(N. ampullaria x N. gracilis)
The natural hybrid of N. ampullaria x N. gracilis is probably the most common hybrid to be found here. You can see that not all Nepenthes grow in swamps- some like sand.

growing in a silica sand area

growing with one of its parents (N. ampullaria)

N. hookeriana
( N. ampullaria x N. rafflesiana )
Another common hybrid with many types to be found. Variations occur when ampullaria is crossed with the Raf varieties present.

Lower pitcher. The peristome very similar to the ampullaria and the body shape of an obvious cross between the parents

Upper pitcher showing the Amp peristome but with the squared front of the Raf.

N. cantleyi
( N. bicalcarata x N. gracilis )

An upper pitcher with the coloring of gracilis, the lid of Bical and the body shape a cross between the two. Traces of the Bical vestigial fangs are visible (but not in this picture). This hybrid is quite common wherever Bical and gracilis grow together.

N. bicalcarata x N. mirabilis var. echinostoma
A very rare hybrid, I have seen only one plant

A lower pitcher. It has the shape of the Bical with the hook behind the lid and a trace of the fangs under. It has the flared peristome of N. mirabilis var. echinostoma.

N. grabilis
( N. gracilis x N. mirabilis var.echinostoma)
An uncommon hybrid.

Lower pitchers growing in silica sand on the edges of a swamp. The flared peristome and shape of mirabilis is easily distinguished.

Close up of the upper pitcher from the same plant clearly showing the mirabilis-type peristome and gracilis coloration.

N. hookerae
( N. mirabilis var.echinostoma x N. rafflesiana )
Much more common than the mirabilis x gracilis, but due to the varieties of
Raf, there are many more variations.

Lower pitcher of a different plant. This time a cross with a normal variety Raf.

One of the variations - with an elongated Raf. It has the flared peristome of mirabilis and the long narrow body of the Elongated Raf . This pitcher is about 12 inches long.

I haven't any photos yet of Amp x Mirabilis.from Brunei. I will have to get
some to add to my collection.
I don't have photos of the very rare hybrid of N. bicalcarata x N. rafflesiana.
We found one single plant a year ago in really top condition with beautiful
pitchers but unfortunately didn't have my camera with me. A few weeks later
we went back to take pictures and found the area had been cleared and the
plant cut down. Fortunately it survived and we are now watching it closely.

All photos were taken in natural light on a 20 year old Olympus OM1 camera
fitted with an equally old Vivitar 70-205 mm close focus zoom lens.


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