A couple of odd ones - Oeceoclades monophylla
 

Oeceoclades monophylla and Oeceoclades spathulifera are rather odd species
being hot growing terrestrials found on the Indian Ocean islands of
Mauritius and Madagascar respectively.

The foliage is also quite unique with a single brown mottled leaf giving
Oeceoclades monophylla its specific epithet.

~John