Lockhartia is a genus of 25 species native to the Neotropics, with many species occurring in Brazil.  This one is native to Brazil and has tiny yellow blossoms. It can be grown mounted or in well-draining potting media.  It does well in a range of temperatures, favoring intermediate conditions.  In the summer I keep them 75-80F, with occasional swings to 85F.  In the winter they’re kept 65-75F.

Available plants are in 2″ pots.  The last image is representative of the size plants available.