Campylocentrum fasciola (Lindl.) Cogn. 1906 a Puerto Rican orchid "in situ" in the Rio Abajo forest

Few people notice these orchids, and even fewer have seen the flowers.  These orchids are not rare, they are just so inconspicuous as to be invisible.  The plant has no leaves, is it composed of a very short stem and roots that can be more than a forty centimenters long.  They prefer to grow on twigs.  The plant I observed only opened the first flower at the base of the inflorescence, all the others remained closed.  The flower is about one millimeter wide.