Phalaenopsis stuartiana 'Sogo' 
2.5" blooming size plants available for sale at $25 each. 
Only 15 plants available. 
The plants have leaf span of around 20 cm. 

This variety of Phalaenopsis stuartiana has white coloured flowers, with nice mottled leaves. The plants can grow really well when mounted and can form a very nice display of roots and leaves. The roots also have silver coloured surface. The photo is of a plant that I had which is mounted. (The roots appears to be green as it was just watered, when dried the roots will appear as silver coloured)

Phalaenopsis stuartiana 'Sogo'