I just got the U512 from Darrin too. Lovely plant.
Charles Henthorne, who is helping classify it, is vying for the name B. xanthina var. picta rather than the U designation.
I believe both that one and the chlorosticta like low light.
Darrin has B. decora too...if'n you hurry you can get it, too! Lovely texture like soli-mutata, brilliant color contrast like quadrialata ssp. nimbaensis
