Joachim,
Interesting to see the plant sold as highland truncata from Thomas Carow. It seems to be a bit different morphologically from the highland truncata from Borneo Exotics. One difference you can see between the standard lowland and highland variety from BE is that with the lowland one the new leaves start to unfurl from the middle of the petiole, then slowly form a 'D' shape until just the pitcher is enclosed in the petiole, then the pitcher is finally released. With the highland variety, the pitcher grows out of the petiole first, then the leaf comes out in more or less one stage. I see in the picture of you highland one that it has the same growth habit as the lowland ones in that respect. Maybe this is a third variation of the species, or some intermediate variety.
There are a couple of other morphological features between the highland and lowland varieties, but I can't see enough to tell from your photo. Rob Cantley is the guru when it comes to the subtle differences of the two.
Hamish
Interesting to see the plant sold as highland truncata from Thomas Carow. It seems to be a bit different morphologically from the highland truncata from Borneo Exotics. One difference you can see between the standard lowland and highland variety from BE is that with the lowland one the new leaves start to unfurl from the middle of the petiole, then slowly form a 'D' shape until just the pitcher is enclosed in the petiole, then the pitcher is finally released. With the highland variety, the pitcher grows out of the petiole first, then the leaf comes out in more or less one stage. I see in the picture of you highland one that it has the same growth habit as the lowland ones in that respect. Maybe this is a third variation of the species, or some intermediate variety.
There are a couple of other morphological features between the highland and lowland varieties, but I can't see enough to tell from your photo. Rob Cantley is the guru when it comes to the subtle differences of the two.
Hamish
