There are quite a few lylei in cultivation- this is the dark form with a single stripe.  Others include a green leaf with white leaf venation, a deep maroon-brown leaf with a thick golden leaf stripe and red leaf venation, a maroon-green leaf with a single cream stripe and pink leaf venation.  These are grown from tissue culture and have been out of the flask for 6+ months.   This particular form is less common in cultivation.  It grows well in sphagnum moss in medium light, with the substrate drying out slightly between waterings and is tolerant of warmer (and cooler) conditions.

Available plants are well rooted and growing in 2″ pots.  The last photo is representative of the plants available.