Thrixspermum wenzelii

[san]

Hi lanhua,I am sure it's a Thrxspermum. May be Thrixspermum saruwatarii. One or two months later we will get the anwer.
I had ever used the leafstalk of Caryota ochlandra as plantingmaterial to plant my orchid. It's quite good. Now I usually use cork board to mount my orchids. I can see many rochids like to grow on it.