Hi,since the last posting a month ago,some members request that i take photos and show the substrates. Here they are, images in their natural *habitat and substrate examination. Feel free to comment here if descriptions are still insufficient.
northiana is only found inland of Sarawak,on limestone hills.Hills are no higher than 500 ft. Night is cool. Temp.range from 24°C (night) to 28°C (day ),humidity is approx.90%,rain is frequent,as in most inland hills and mts. of sarawak.
Northiana can be found on limestone foothills or hanging on steep hill slopes.
limestones are loose and exposed on some low slopes ( this one is approx. 12ft )
Heavy mist is a natural everyday occurence on limestone hills.
Taken 7.30am.Heavy mist blocked one of the hills.(partially,right of photo)
Some limestones are fragmented-big and small. Rain falls bringing with it clay,sand,decaying leaves and trees branches and deposited on the crevices.
photo shows northiana on loose limestone slope
one limestone was removed (away from the roots system)to reveal the substrates-very loose and porous of clay,sand,decay plant materials,etc..
another young northiana taking roots on limestone crevices
more on limestone slopes.
I may have omitted some vital info but the images speak for themselves Hope i met the request.
btw:i have one northiana plant grows on 1/2 podzol soil,1/2 limestone chippings (collected from the abandon limestones quarry).She is doing fine,have small pitchers. As long as the medium is well drain,other factors remain constant,like any neps she will grow