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Trachys are variable in their nature. Simple quantifyable fact as mentioned.. The same trachy may produce seeds that look totally different in their forms.hardyjim wrote:So,what are their genetics? This is the question nobody seems to be able to answer,this trait came from somewhere,I don't think fortunei just did this on it own,like o.k.I think I'll be a different palm this time!
Fortunei seems to pick up traits from what ever it grows around as far as other Trachycarpus go,if your kid suddenly grew a round head and his face changed shape,you both might want to change your name,I suggest you stick with something to keep it in the family......how about Myson!LOL
B.T.W.Barrie that is a beautiful son...ahh,I mean palm you have there,very healthy!
put it better then i ever couldPaul Ont wrote:Jim,
The inheritance of traits such as round leaf would be controlled by many genets interacting. These 'forms' of fortunei are probably caused by some uncommon genetic recombination. 'Wisan', which I'll call 'round leaf', is simply one extreme of the range of traits that Trachycarpus fortunei can display... It's still fortunei. It's the same idea as us calling Trachycarpus wagnerianus a species, when it is clearly just a stable dwarf form of Trachy fortunei. The DNA sequences seem to lend support to this as well. Unfortunately, we don't have the ITS sequence from a 'Round leaf' fortunei nor from a 'tesan' fortunei to show that these are all the same thing.
We know that Nainital (formerly Takil) is fortunei. But, it also seems that these nainital palms are adapted to growing in mountainous environments and therefore might be able to take a bit more cold... They're still fortunei. It is a stable species with perhaps more variability then is usual, perhaps owing to the large range of the species and the diversity of the collections made. The entire genus is very closely related and it's this closeness that has led to many inproper descriptions of species being made. I'm not sure, but if I had to name the proper species off the top of my head (without checking the phylogeneitc study) I'd have to say that the following are the valid species: T. fortunei (including nainital, wagnerianus, wisan, tesan, misan, caespitosa, etc. etc.), T. nanus, T. takil (including T. urkense), T. princeps, T. martianus (inc. latisectus), T. oreophilus. I think that T. geminisectus is too new to classify.
Another way to think about this is to consider something like Opuntia polyacantha, where the same species ranges from pads 3" to 4" across with small yellow flowers, to plans with pads up to 12" with bright red flowers or even white flowers. That's a great deal of variability