don't just cut off at the base though - if i remember right, Ph.bipinnatifidum won't root from just top cutting, UNLESS it had good aerial roots too .
on the 1st pic the stem in front - that looks like it's branching from the main stem , but am not sure. if it is - don't just cut it off, unless you have roots too. it doesn't have any aerials that i can see though.
you can get aerials, if you tent the base with plastic and you can throw in some damp loose long-fibre sphagnum inside to keep it steamy - it will produce aerials in no time. you can then cut it off and bury the aerials.
on the 2nd pic - those 2 babies seem to be coming from the soil - so if they are connected to the main trunk - you'll need to cut them off.
problem is , when you bury the cut - it can start rotting. so you need to dust it with cinnamon or anti-fungal. but it can still rot.
when i was rooting a big philo trunk i layered it in loose peanut shells (sterilized for 4 min in microwave, of course
- to allow air access to prevent rot at the base. but still i had to scrape it sev times and paint it with peroxide solution,etc. it's best kept totally dry to heal. but then how do you plant it in soil?
so, IF you have to cut and bury in soil - perhaps sealing the cut with warm melted wax might be a good idea? may be somebody can pitch in from FL - they have lots of them there - practically in ev yard.
you can wrap the roots with damp towel and then plastic when you get it out of the pot to separate and expose the stem cut to air-dry for an hour or two. and cinnamon dust.
depending on what's happening in the pot - it might be best to cut off the main trunk instead of off-shoots, leaving the rest attached together - this way the off-shoots will be less disturbed, with fewer cuts to rot.
i see a couple of gianto roots coming off the main trunk - is that all or are there more?
what does the main stem look like at the top. how many leaves? full pic, please?
