TerraForums Venus Flytrap, Nepenthes, Drosera and more talk
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1. Probably an old name. According to Wikipedia it states it was once considered an extreme form of N. mirabilis. Basically, I think it's like calling S. purpurea S. gibbosa.
highland plants dont need a temp drop just because thats what they would experience in habitat. They need it for a variety of cellular processes, mostly related to growth/reconstruction, for which the enzymes required to participate in such processes are hindered by "higher" temperatures
About N tenax...
Its a new species thats just been or is being described. It is being seperated from mirabilis and is from Cape York in Northern Australia. Not alot is known about it yet, but it was not one of Australias original 100 or so species that were all combined with mirabilis. It will certainly be a lowlander probably from scrubby swamps.
Well see when the article gets passed around!
And about temperature drops...phissioncorps is right, its about enzymes. The enzymes in all living creatures have a certain temperature range in which they work, outside of this temperature range the enzyme actually changes shape and becomes either entirely useless or ineffective. In the case of highland nepenthes their enzymes appear to be active most at night and only when the temperatures do their drop to an acceptable level!
In the case of humans, youve got a couple of degrees either way before our enzymes change shape and all cellular respiration stops.
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