Trisetella hirtzii

Like all the Trisetellas, this is a very small plant, only 3 cm tall, and the flowers, too, are typical of the genus both in color and with their odd little tails.  The flowers are 1 cm and the plants blooms prolifically during the winter.  It is from Ecuador and named after a well-known orchidist.  It is related to Masdevallia, and like them prefers cool temperatures and good humidity.