Acronia canadentis

Canidentis means "dog's tooth" and the name in this case refers to the shape of the petals.  Acronia or Pleurothallis canidentis is from Costa Rica, Panama and Colombia and is only 12cm tall with 2cm flowers, which are produced one at a time from the sheath at the base of the heart-shaped leaf.  The unusual colors and size of the flowers make it a desirable species, but it is cool-cold growing, coming from higher elevations and does not seem to tolerate warmer temperatures very well.

Acronia canidentis

Previously known as Pleurothallis canidentis, this small plant has the heart-shaped leaves characteristic of the group, and the flowers, like the other Acronias, are carried on short stems, so that the flower lies on the upper surface of the leaf.

This species is one of the smaller Acronias, and is native to Panama, Costa Rica and Colombia.  The leaves with their stems are about 15 cm tall and the flowers are 2 cm tall.  It is cool growing and does well either in a pot or mounted.

The species name, canidentis, means "dog's tooth," and refers to the shape of the petals, though the resemblance entirely escapes me.  This, then, is the Dog's Tooth Pleurothallis, or the Dog's Tooth Acronia, but by any name a worthwhile plant.