Managed to track down those articles on propagation from flower stems on cpukforum-enjoy
http://www.cpukforum.com/forum/index.php?showtopic=26328
http://www.cpukforum.com/forum/index.php?showtopic=27604
What i was trying to explain is that the vft according to that article i posted earlier will use more nourishment on creating new tissue on one side of the bulb as opposed to the other as a way of trying to propel it'self downwards-by doing this on the opposite sides every other year the plant eventually begins to drill it'self into the ground.
No the other side is not a new growing point if you mean in the way a new plantlet is formed but simply a term i used to try and explain more easily the process i was refering to-seems i've caused some confusion.
Please remember this downward drilling movement is just an observation by one grower and i am unsure how much weight this process has in proven fact.
Some photographs i've found of vft in various growth behavious to try and demonstrate what i'm talking about
A photo showing how the plant grows more leaves on one side more than the other, and is what i was refering to by using the term growing point(which probably isn't the right term to use, but it's all i could think of, perhaps prolific leaf formation is more accurate?)- and shows how this causes more bulb tissue to form on that side leading to the plant being lopsided and you can imagine how it uses this action to sink into the ground by doing this on opposing sides every other year.
http://www.hungryplants.nl/images/flytrapbulb.gif
Photo i found of plant with small amount of root structure with no uneven leaf growth showing perhaps what i'm saying isn't correct and i can't really explain why one side of your plant has fewer roots that the other....i think the bulb below is on a plant exhibiting rosetted growth pattern?
h t t p : / / w w w . p i t c h e r p l a n t . c o m / i m a g e _ f o l d e r 1 / h o l d _ f l y t r a p . j p g
Personally i find my vft all look like the first bulb picture shown, with roots growing on two thirds of the bulb, as opposed to your observation of roots found on only one third of the bulb...
Did you notice you plant was noticeabley growing it's leaves in a way that it was migrating downwards?
I'm unsure exactly whats going on here lol and all i've tried to do is apply knowledge gained from reading about these plants and applying it rationally to your observations although i have to admit i am no expert and have no other suggestion as to why your plant only has roots growing on a small section of bulb other than they must impede downward movement by growing in the way of the plants downward path and so the plant doesn't deploy them on that side?
My thoughts are just that, my opinion, with no scientific basis whatsoever so please don't go talking about this as proven fact, more just someone's thoughts.
Hope this helps although i think i'm confused at the moment
I only have a pot of crested petioles, and i notice there bulbs look like drillbits, with the leaves growing in a spiral like pattern with one side more lopsided than the other.
Although remember there are a lot of factors that influence vft growth habit( i have no clue whatsoever what they are lol)which can explain rosetted or lopsided patterns like described here and i can't begin to understand all the intricacies of this plant and is why i am fascinated by it so much-i revel in it's almost mythical nature.
My advice would be to ask one of the heavyweights of the cp world why this occurs lol as i'm just a novice grower
lol sorry i know this doesn't help much and has probably done your head in lol sorry!